{"title":"M50TU | M52 | S50 | S52 Single VANOS Rebuild Kits","description":"\u003cp\u003eThe \u003cstrong\u003eSingle VANOS\u003c\/strong\u003e system found on BMW’s M50TU, M52, S50 (US), and S52 (US) engines is an early form of variable valve timing that adjusts the position of the \u003cstrong\u003eintake camshaft only\u003c\/strong\u003e, while the exhaust camshaft remains fixed. Controlled by the engine’s DME, an oil-pressure-operated piston and helical gear mechanism switches the intake camshaft between advanced and retarded positions based on engine speed, load, and temperature. This allows BMW to optimize valve timing for different operating conditions, improving \u003cstrong\u003elow- and mid-range torque, throttle response, idle quality, fuel efficiency, and emissions\u003c\/strong\u003e without sacrificing high-RPM performance. The M50TU introduced Single VANOS to BMW’s mainstream inline-six engines, and the basic design continued with the M52 before BMW transitioned to Double VANOS on the M52TU.\u003c\/p\u003e","products":[{"product_id":"single-vanos-rebuild-kit-stage-1","title":"Single VANOS Rebuild Kit - Stage 1","description":"\u003ch2\u003eBMW M50TU \/ M52 Single VANOS Rebuild Kit — Stage 1\u003c\/h2\u003e\n\u003cp\u003eRestore proper VANOS operation with our \u003cstrong\u003eStage 1 Single VANOS Rebuild Kit\u003c\/strong\u003e, designed for BMW M50TU and M52 engines.\u003c\/p\u003e\n\u003cp\u003eBMW introduced VANOS variable valve timing in the early 1990s to improve torque, drivability, and engine efficiency throughout the RPM range. After decades of heat cycles and mileage, the original VANOS piston seals begin to harden and wear, reducing the unit's ability to properly control camshaft timing.\u003c\/p\u003e\n\u003cp\u003eCommon symptoms of a worn Single VANOS unit can include \u003cstrong\u003eloss of low-end torque, sluggish throttle response, inconsistent power delivery, VANOS-related fault codes, and oil leakage\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOur Stage 1 kit replaces the critical internal piston seals with high-quality materials designed to withstand the heat, oil, and operating conditions found inside the VANOS system.\u003c\/p\u003e\n\u003ch3\u003eStage 1 Kit Includes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 PTFE (Teflon) Piston Ring Seal\u003c\/li\u003e\n\u003cli\u003e1 FKM (Viton) O-Ring Seal\u003c\/li\u003e\n\u003cli\u003e2 Copper VANOS Oil Line Sealing Washers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDon't Be Fooled by Cheap VANOS Kits\u003c\/h3\u003e\n\u003cp\u003eNot all rebuild kits are created equal. There are cheaper kits available online, but \u003cstrong\u003ethe quality of the seals and materials is not the same\u003c\/strong\u003e. There's a reason some kits sell for less than half the price.\u003c\/p\u003e\n\u003cp\u003eWe source quality components specifically for this application so you can rebuild your VANOS with confidence and avoid doing the job twice.\u003c\/p\u003e\n\u003ch3\u003eSpecial Tool Required\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003emodified 18mm socket\u003c\/strong\u003e is required to disassemble most M50TU\/M52 Single VANOS units. We offer the properly modified socket separately at a small additional cost to make the rebuild easier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Some 1993 Single VANOS units require a \u003cstrong\u003emodified 17mm socket\u003c\/strong\u003e instead of the 18mm version. Verify your VANOS unit before ordering your tool.\u003c\/p\u003e\n\u003ch3\u003eFitment Guide\u003c\/h3\u003e\n\u003cp\u003eThis kit is designed for BMW models equipped with \u003cstrong\u003eM50TU, M52, and US-spec S52 Single VANOS engines\u003c\/strong\u003e. Fitment varies by market and production date.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears \/ Production\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e320i\u003c\/td\u003e\n\u003ctd\u003e1992–1998\u003c\/td\u003e\n\u003ctd\u003eM50TU \/ M52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e323i \/ 323is\u003c\/td\u003e\n\u003ctd\u003e1995–1999\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e325i \/ 325is\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e328i \/ 328is\u003c\/td\u003e\n\u003ctd\u003e1995–1999\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3 (US)\u003c\/td\u003e\n\u003ctd\u003e1996–1999\u003c\/td\u003e\n\u003ctd\u003eS52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520i\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e525i \/ 525ix\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520i (Euro)\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e523i (Euro)\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e528i\u003c\/td\u003e\n\u003ctd\u003e1996–9\/1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE38\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e728i \/ 728iL (Euro)\u003c\/td\u003e\n\u003ctd\u003e1995–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZ3 E36\/7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.8\u003c\/td\u003e\n\u003ctd\u003e1997–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZ3 M Roadster E36\/7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.2 (US)\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003ctd\u003eS52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZ3 M Coupe E36\/8\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.2 (US)\u003c\/td\u003e\n\u003ctd\u003e1999–2000\u003c\/td\u003e\n\u003ctd\u003eS52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Production dates and engine configurations can vary by market. BMW transitioned several models from Single VANOS M52 engines to Dual VANOS M52TU engines around the 1998–1999 model years. Verify your engine before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEuropean Z3 M Note:\u003c\/strong\u003e European-market Z3 M models use the S50B32 engine, which has a different Double VANOS system and \u003cstrong\u003edoes not use this M50TU\/M52 Single VANOS rebuild kit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStage 1 is our seal-focused rebuild kit.\u003c\/strong\u003e If your VANOS also has the familiar metallic \"marbles in a can\" rattle from the front of the engine, consider one of our higher-stage kits that includes the components required to address VANOS bearing wear and rattle.\u003c\/p\u003e","brand":"VANOS Rebuild Kits","offers":[{"title":"No","offer_id":43186770509918,"sku":"vrk-single-stage1-no","price":50.0,"currency_code":"USD","in_stock":true},{"title":"17mm","offer_id":43186770542686,"sku":"vrk-single-stage1-17","price":60.0,"currency_code":"USD","in_stock":true},{"title":"18mm","offer_id":43186770575454,"sku":"vrk-single-stage1-18","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/0845\/3982\/files\/bmw-single-vanos-seal-kit01.png?v=1787663302"},{"product_id":"single-vanos-rebuild-kit-stage-2","title":"Single VANOS Rebuild Kit - Stage 2","description":"\u003ch2\u003eBMW M50TU \/ M52 Single VANOS Rebuild Kit — Stage 2\u003c\/h2\u003e\n\u003cp\u003eRestore VANOS performance \u003cstrong\u003eand address the infamous VANOS rattle\u003c\/strong\u003e with our \u003cstrong\u003eStage 2 Single VANOS Rebuild Kit\u003c\/strong\u003e, designed for BMW M50TU, M52, and US-spec S52 engines.\u003c\/p\u003e\n\u003cp\u003eBMW introduced VANOS variable valve timing in the early 1990s to improve low-end torque, drivability, and engine efficiency. After decades of mileage and heat cycles, the original VANOS piston seals begin to harden and wear, reducing the unit's ability to properly control camshaft timing. At the same time, wear inside the VANOS bearing assembly can create the distinctive metallic rattle these engines are known for.\u003c\/p\u003e\n\u003cp\u003eCommon symptoms of a worn Single VANOS unit can include \u003cstrong\u003eloss of low-end torque, sluggish throttle response, inconsistent power delivery, VANOS-related fault codes, oil leakage, and VANOS rattle\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIf the front of your engine sounds like there are \u003cstrong\u003emarbles or rocks rolling around inside it\u003c\/strong\u003e, there's a good chance you're hearing VANOS rattle.\u003c\/p\u003e\n\u003cp\u003eOur \u003cstrong\u003eStage 2 kit\u003c\/strong\u003e takes the rebuild one step further than Stage 1 by including both the upgraded piston seals and our anti-rattle bushing set, allowing you to address the two most common wear areas while the VANOS unit is apart.\u003c\/p\u003e\n\u003ch3\u003eStage 2 Kit Includes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 PTFE (Teflon) Piston Ring Seal\u003c\/li\u003e\n\u003cli\u003e1 FKM (Viton) O-Ring Seal\u003c\/li\u003e\n\u003cli\u003e2 Copper VANOS Oil Line Sealing Washers\u003c\/li\u003e\n\u003cli\u003e1 Anti-Rattle Bushing\u003c\/li\u003e\n\u003cli\u003e2 Anti-Rattle Bearings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose Stage 2?\u003c\/h3\u003e\n\u003cp\u003eStage 1 replaces the internal VANOS piston seals. \u003cstrong\u003eStage 2 adds the components needed to address VANOS bearing wear and rattle.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf you're already removing and rebuilding your VANOS unit, Stage 2 is an excellent choice for a more complete rebuild—especially on higher-mileage engines or vehicles already exhibiting VANOS noise.\u003c\/p\u003e\n\u003ch3\u003eDon't Be Fooled by Cheap VANOS Kits\u003c\/h3\u003e\n\u003cp\u003eNot all VANOS rebuild kits are created equal. There are cheaper kits available online, but \u003cstrong\u003ethe quality of the seals, bearings, and materials is not the same\u003c\/strong\u003e. There's a reason some kits sell for less than half the price.\u003c\/p\u003e\n\u003cp\u003eWe source quality components specifically for this application so you can rebuild your VANOS with confidence and avoid doing the job twice.\u003c\/p\u003e\n\u003ch3\u003eSpecial Tool Required\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003emodified 18mm socket\u003c\/strong\u003e is required to disassemble most M50TU\/M52 Single VANOS units. We offer the properly modified socket separately at a small additional cost to make the rebuild easier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Some 1993 Single VANOS units require a \u003cstrong\u003emodified 17mm socket\u003c\/strong\u003e instead of the 18mm version. Verify your VANOS unit before ordering your tool.\u003c\/p\u003e\n\u003ch3\u003eFitment Guide\u003c\/h3\u003e\n\u003cp\u003eThis kit is designed for BMW models equipped with \u003cstrong\u003eM50TU, M52, and US-spec S52 Single VANOS engines\u003c\/strong\u003e. Fitment varies by market and production date.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears \/ Production\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e320i\u003c\/td\u003e\n\u003ctd\u003e1992–1998\u003c\/td\u003e\n\u003ctd\u003eM50TU \/ M52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e323i \/ 323is\u003c\/td\u003e\n\u003ctd\u003e1995–1999\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e325i \/ 325is\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e328i \/ 328is\u003c\/td\u003e\n\u003ctd\u003e1995–1999\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3 (US)\u003c\/td\u003e\n\u003ctd\u003e1996–1999\u003c\/td\u003e\n\u003ctd\u003eS52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520i\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e525i \/ 525ix\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520i (Euro)\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e523i (Euro)\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e528i\u003c\/td\u003e\n\u003ctd\u003e1996–9\/1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE38\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e728i \/ 728iL (Euro)\u003c\/td\u003e\n\u003ctd\u003e1995–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZ3 E36\/7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.8\u003c\/td\u003e\n\u003ctd\u003e1997–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZ3 M Roadster E36\/7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.2 (US)\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003ctd\u003eS52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZ3 M Coupe E36\/8\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.2 (US)\u003c\/td\u003e\n\u003ctd\u003e1999–2000\u003c\/td\u003e\n\u003ctd\u003eS52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Production dates and engine configurations can vary by market. BMW transitioned several models from Single VANOS M52 engines to Dual VANOS M52TU engines around the 1998–1999 model years. Verify your engine and production date before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEuropean Z3 M Note:\u003c\/strong\u003e European-market Z3 M models use the S50B32 engine, which has a different Double VANOS system and \u003cstrong\u003edoes not use this M50TU\/M52 Single VANOS rebuild kit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eStage 2: Seals + Rattle Repair\u003c\/h3\u003e\n\u003cp\u003eChoose \u003cstrong\u003eStage 2\u003c\/strong\u003e if you want to restore the VANOS piston seals \u003cstrong\u003eand\u003c\/strong\u003e address the common mechanical rattle caused by wear within the VANOS bearing assembly. It's our more complete solution for rebuilding an aging M50TU\/M52\/S52 Single VANOS unit.\u003c\/p\u003e","brand":"VANOS Rebuild Kits","offers":[{"title":"No","offer_id":43187114344542,"sku":"vrk-single-stage2-no","price":80.0,"currency_code":"USD","in_stock":true},{"title":"17mm","offer_id":43187114377310,"sku":"vrk-single-stage2-17","price":90.0,"currency_code":"USD","in_stock":true},{"title":"18mm","offer_id":43187114410078,"sku":"vrk-single-stage2-18","price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/0845\/3982\/files\/bmw-single-vanos-seal-rattle-kit01.png?v=1787663329"},{"product_id":"single-vanos-rebuild-kit-stage-3","title":"Single VANOS Rebuild Kit - Stage 3","description":"\u003ch2\u003eBMW M50TU \/ M52 Single VANOS Rebuild Kit — Stage 3\u003c\/h2\u003e\n\u003cp\u003eFor the most complete Single VANOS rebuild, our \u003cstrong\u003eStage 3 Rebuild Kit\u003c\/strong\u003e includes the upgraded piston seals, anti-rattle components, and an \u003cstrong\u003eOEM VANOS sealing gasket\u003c\/strong\u003e. Designed for BMW M50TU, M52, and US-spec S52 engines, Stage 3 gives you the components needed to address the most common VANOS wear points while replacing the main sealing gasket during reassembly.\u003c\/p\u003e\n\u003cp\u003eBMW introduced VANOS variable valve timing in the early 1990s to improve low-end torque, drivability, and engine efficiency. After decades of mileage and heat cycles, the original VANOS piston seals can harden and wear, reducing the unit's ability to properly control camshaft timing. Wear within the VANOS bearing assembly can also create the distinctive metallic rattle these engines are known for.\u003c\/p\u003e\n\u003cp\u003eCommon symptoms of a worn Single VANOS unit can include \u003cstrong\u003eloss of low-end torque, sluggish throttle response, inconsistent power delivery, VANOS-related fault codes, oil leakage, and VANOS rattle\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIf the front of your engine sounds like there are \u003cstrong\u003emarbles or rocks rolling around inside it\u003c\/strong\u003e, there's a good chance you're hearing the infamous VANOS rattle.\u003c\/p\u003e\n\u003cp\u003eOur \u003cstrong\u003eStage 3 kit\u003c\/strong\u003e combines the seal and rattle-repair components from Stage 2 with an \u003cstrong\u003eOEM VANOS sealing gasket\u003c\/strong\u003e, making it our more complete kit for servicing your Single VANOS unit.\u003c\/p\u003e\n\u003ch3\u003eStage 3 Kit Includes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 PTFE (Teflon) Piston Ring Seal\u003c\/li\u003e\n\u003cli\u003e1 FKM (Viton) O-Ring Seal\u003c\/li\u003e\n\u003cli\u003e2 Copper VANOS Oil Line Sealing Washers\u003c\/li\u003e\n\u003cli\u003e1 Anti-Rattle Bushing\u003c\/li\u003e\n\u003cli\u003e2 Anti-Rattle Bearings\u003c\/li\u003e\n\u003cli\u003e1 OEM VANOS Sealing Gasket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose Stage 3?\u003c\/h3\u003e\n\u003cp\u003eStage 3 is designed for customers who want to do the job as completely as possible while the VANOS unit is removed.\u003c\/p\u003e\n\u003cp\u003eIn addition to replacing the internal piston seals and addressing bearing-related VANOS rattle, Stage 3 includes the \u003cstrong\u003eOEM VANOS sealing gasket\u003c\/strong\u003e used when reinstalling the VANOS unit.\u003c\/p\u003e\n\u003cp\u003eRather than reusing an old, compressed gasket or sourcing one separately, you'll have the major service components ready to go in one convenient kit.\u003c\/p\u003e\n\u003ch3\u003eDon't Be Fooled by Cheap VANOS Kits\u003c\/h3\u003e\n\u003cp\u003eNot all VANOS rebuild kits are created equal. There are cheaper kits available online, but \u003cstrong\u003ethe quality of the seals, bearings, and materials is not the same\u003c\/strong\u003e. There's a reason some kits sell for less than half the price.\u003c\/p\u003e\n\u003cp\u003eWe source quality components specifically for this application and include an \u003cstrong\u003eOEM sealing gasket\u003c\/strong\u003e in our Stage 3 kit so you can rebuild your VANOS with confidence and avoid doing the job twice.\u003c\/p\u003e\n\u003ch3\u003eSpecial Tool Required\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003emodified 18mm socket\u003c\/strong\u003e is required to disassemble most M50TU\/M52 Single VANOS units. We offer the properly modified socket separately at a small additional cost to make the rebuild easier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Some 1993 Single VANOS units require a \u003cstrong\u003emodified 17mm socket\u003c\/strong\u003e instead of the 18mm version. Verify your VANOS unit before ordering your tool.\u003c\/p\u003e\n\u003ch3\u003eFitment Guide\u003c\/h3\u003e\n\u003cp\u003eThis kit is designed for BMW models equipped with \u003cstrong\u003eM50TU, M52, and US-spec S52 Single VANOS engines\u003c\/strong\u003e. Fitment varies by market and production date.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears \/ Production\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e320i\u003c\/td\u003e\n\u003ctd\u003e1992–1998\u003c\/td\u003e\n\u003ctd\u003eM50TU \/ M52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e323i \/ 323is\u003c\/td\u003e\n\u003ctd\u003e1995–1999\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e325i \/ 325is\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e328i \/ 328is\u003c\/td\u003e\n\u003ctd\u003e1995–1999\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3 (US)\u003c\/td\u003e\n\u003ctd\u003e1996–1999\u003c\/td\u003e\n\u003ctd\u003eS52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520i\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e525i \/ 525ix\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520i (Euro)\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e523i (Euro)\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e528i\u003c\/td\u003e\n\u003ctd\u003e1996–9\/1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE38\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e728i \/ 728iL (Euro)\u003c\/td\u003e\n\u003ctd\u003e1995–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZ3 E36\/7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.8\u003c\/td\u003e\n\u003ctd\u003e1997–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZ3 M Roadster E36\/7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.2 (US)\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003ctd\u003eS52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZ3 M Coupe E36\/8\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.2 (US)\u003c\/td\u003e\n\u003ctd\u003e1999–2000\u003c\/td\u003e\n\u003ctd\u003eS52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Production dates and engine configurations can vary by market. BMW transitioned several models from Single VANOS M52 engines to Dual VANOS M52TU engines around the 1998–1999 model years. Verify your engine and production date before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEuropean Z3 M Note:\u003c\/strong\u003e European-market Z3 M models use the S50B32 engine, which has a different Double VANOS system and \u003cstrong\u003edoes not use this M50TU\/M52 Single VANOS rebuild kit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eStage 3: The Complete Single VANOS Rebuild Kit\u003c\/h3\u003e\n\u003cp\u003eChoose \u003cstrong\u003eStage 3\u003c\/strong\u003e if you want the more complete version of our M50TU\/M52\/S52 Single VANOS rebuild kit. It combines the \u003cstrong\u003eupgraded VANOS seals, anti-rattle bushing and bearings, copper oil line washers, and OEM VANOS sealing gasket\u003c\/strong\u003e into one convenient package.\u003c\/p\u003e\n\u003cp\u003eRebuild it once. Rebuild it right.\u003c\/p\u003e","brand":"VANOS Rebuild Kits","offers":[{"title":"No","offer_id":43187116507230,"sku":"vrk-single-stage3-no","price":90.0,"currency_code":"USD","in_stock":true},{"title":"17mm","offer_id":43187116539998,"sku":"vrk-single-stage3-17","price":100.0,"currency_code":"USD","in_stock":true},{"title":"18mm","offer_id":43187116572766,"sku":"vrk-single-stage3-18","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/0845\/3982\/files\/bmw-single-vanos-stage3-kit01.png?v=1787663351"},{"product_id":"single-vanos-rebuild-kit-stage-4","title":"Single VANOS Rebuild Kit - Stage 4","description":"\u003ch2\u003eBMW M50TU \/ M52 Single VANOS Rebuild Kit — Stage 4\u003c\/h2\u003e\n\u003cp\u003eGo beyond rebuilding the VANOS unit with our \u003cstrong\u003eStage 4 Single VANOS Rebuild Kit\u003c\/strong\u003e. Designed for BMW M50TU, M52, and US-spec S52 engines, Stage 4 includes everything from our Stage 3 kit plus the additional gaskets, grommets, and VANOS oil feed line needed for a more comprehensive VANOS service.\u003c\/p\u003e\n\u003cp\u003eBMW introduced VANOS variable valve timing in the early 1990s to improve low-end torque, drivability, and engine efficiency. After decades of mileage and heat cycles, the original VANOS piston seals can harden and wear, reducing the unit's ability to properly control camshaft timing. Wear within the VANOS bearing assembly can also create the distinctive metallic rattle these engines are known for.\u003c\/p\u003e\n\u003cp\u003eCommon symptoms of a worn Single VANOS unit can include \u003cstrong\u003eloss of low-end torque, sluggish throttle response, inconsistent power delivery, VANOS-related fault codes, oil leakage, and VANOS rattle\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIf the front of your engine sounds like there are \u003cstrong\u003emarbles or rocks rolling around inside it\u003c\/strong\u003e, there's a good chance you're hearing the infamous VANOS rattle.\u003c\/p\u003e\n\u003cp\u003eOur \u003cstrong\u003eStage 4 kit\u003c\/strong\u003e is designed for the owner who wants to tackle the VANOS rebuild and replace several of the common surrounding wear and sealing components at the same time.\u003c\/p\u003e\n\u003ch3\u003eStage 4 Kit Includes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 PTFE (Teflon) Piston Ring Seal\u003c\/li\u003e\n\u003cli\u003e1 FKM (Viton) O-Ring Seal\u003c\/li\u003e\n\u003cli\u003e2 Copper VANOS Oil Line Sealing Washers\u003c\/li\u003e\n\u003cli\u003eAnti-Rattle Bushing Set\n\u003cul\u003e\n\u003cli\u003e1 Anti-Rattle Bushing\u003c\/li\u003e\n\u003cli\u003e2 Anti-Rattle Bearings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e1 OEM VANOS Sealing Gasket\u003c\/li\u003e\n\u003cli\u003eValve Cover Gasket\u003c\/li\u003e\n\u003cli\u003eSpark Plug Well Gaskets\u003c\/li\u003e\n\u003cli\u003e15 Valve Cover Rubber Grommets\u003c\/li\u003e\n\u003cli\u003eVANOS Oil Feed Line\u003c\/li\u003e\n\u003cli\u003eBanjo Bolts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose Stage 4?\u003c\/h3\u003e\n\u003cp\u003eStage 4 is our \u003cstrong\u003ecomprehensive Single VANOS service kit\u003c\/strong\u003e. In addition to rebuilding the internal VANOS components, it allows you to replace several aging parts that are already accessible during the repair.\u003c\/p\u003e\n\u003cp\u003eThe valve cover must be removed as part of the VANOS service, making this an ideal time to replace the \u003cstrong\u003evalve cover gasket, spark plug well gaskets, and rubber sealing grommets\u003c\/strong\u003e rather than reinstalling old, hardened seals.\u003c\/p\u003e\n\u003cp\u003eWe've also included a \u003cstrong\u003enew VANOS oil feed line with banjo bolts\u003c\/strong\u003e. This line supplies pressurized engine oil to the VANOS system and can develop leaks as it ages.\u003c\/p\u003e\n\u003cp\u003eWith Stage 4, you can address the VANOS seals, bearing rattle, VANOS mounting gasket, valve cover sealing system, and oil feed line in one service.\u003c\/p\u003e\n\u003ch3\u003eDon't Be Fooled by Cheap VANOS Kits\u003c\/h3\u003e\n\u003cp\u003eNot all VANOS rebuild kits are created equal. There are cheaper kits available online, but \u003cstrong\u003ethe quality of the seals, bearings, and materials is not the same\u003c\/strong\u003e. There's a reason some kits sell for less than half the price.\u003c\/p\u003e\n\u003cp\u003eWe source quality components specifically for these applications and use an \u003cstrong\u003eOEM VANOS sealing gasket\u003c\/strong\u003e where specified. Stage 4 is designed to give you the parts needed to perform a more complete repair instead of piecing together a kit from multiple sources.\u003c\/p\u003e\n\u003ch3\u003eSpecial Tool Required\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003emodified 18mm socket\u003c\/strong\u003e is required to disassemble most M50TU\/M52 Single VANOS units. We offer the properly modified socket separately at a small additional cost to make the rebuild easier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Some 1993 Single VANOS units require a \u003cstrong\u003emodified 17mm socket\u003c\/strong\u003e instead of the 18mm version. Verify your VANOS unit before ordering your tool.\u003c\/p\u003e\n\u003ch3\u003eFitment Guide\u003c\/h3\u003e\n\u003cp\u003eThis kit is designed for BMW models equipped with \u003cstrong\u003eM50TU, M52, and US-spec S52 Single VANOS engines\u003c\/strong\u003e. Fitment varies by market and production date.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears \/ Production\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e320i\u003c\/td\u003e\n\u003ctd\u003e1992–1998\u003c\/td\u003e\n\u003ctd\u003eM50TU \/ M52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e323i \/ 323is\u003c\/td\u003e\n\u003ctd\u003e1995–1999\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e325i \/ 325is\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e328i \/ 328is\u003c\/td\u003e\n\u003ctd\u003e1995–1999\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3 (US)\u003c\/td\u003e\n\u003ctd\u003e1996–1999\u003c\/td\u003e\n\u003ctd\u003eS52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520i\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e525i \/ 525ix\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520i (Euro)\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e523i (Euro)\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e528i\u003c\/td\u003e\n\u003ctd\u003e1996–9\/1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE38\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e728i \/ 728iL (Euro)\u003c\/td\u003e\n\u003ctd\u003e1995–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZ3 E36\/7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.8\u003c\/td\u003e\n\u003ctd\u003e1997–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZ3 M Roadster E36\/7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.2 (US)\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003ctd\u003eS52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZ3 M Coupe E36\/8\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.2 (US)\u003c\/td\u003e\n\u003ctd\u003e1999–2000\u003c\/td\u003e\n\u003ctd\u003eS52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Fitment Note:\u003c\/strong\u003e Because Stage 4 includes a \u003cstrong\u003evalve cover gasket set, rubber grommets, and VANOS oil feed line\u003c\/strong\u003e, some components can vary by engine, chassis, and production date. Be sure to select the correct vehicle\/engine option when ordering.\u003c\/p\u003e\n\u003cp\u003eBMW transitioned several models from Single VANOS M52 engines to Dual VANOS M52TU engines around the 1998–1999 model years. Verify your engine and production date before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEuropean Z3 M Note:\u003c\/strong\u003e European-market Z3 M models use the S50B32 engine, which has a different Double VANOS system and \u003cstrong\u003edoes not use this M50TU\/M52 Single VANOS rebuild kit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eStage 4: The Comprehensive VANOS Service Kit\u003c\/h3\u003e\n\u003cp\u003eChoose \u003cstrong\u003eStage 4\u003c\/strong\u003e when you want to do more than rebuild the VANOS itself. This kit combines the \u003cstrong\u003eupgraded VANOS seals, anti-rattle components, OEM VANOS gasket, valve cover gasket set, 15 rubber grommets, and VANOS oil feed line with banjo bolts\u003c\/strong\u003e into one convenient package.\u003c\/p\u003e\n\u003cp\u003eInstead of removing the valve cover and VANOS unit only to reinstall decades-old surrounding seals and hardware, Stage 4 gives you the parts to refresh the entire area while you're already in there.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRebuild it once. Rebuild it right.\u003c\/strong\u003e\u003c\/p\u003e","brand":"VANOS Rebuild Kits","offers":[{"title":"M50TU\/S50 \/ No","offer_id":43187118932062,"sku":"vrk-single-stage4-m50-no","price":220.0,"currency_code":"USD","in_stock":true},{"title":"M50TU\/S50 \/ 17mm","offer_id":43187118964830,"sku":"vrk-single-stage4-m50-17","price":230.0,"currency_code":"USD","in_stock":true},{"title":"M50TU\/S50 \/ 18mm","offer_id":43187118997598,"sku":"vrk-single-stage4-m50-18","price":230.0,"currency_code":"USD","in_stock":true},{"title":"M52\/S52 \/ No","offer_id":43187121160286,"sku":"vrk-single-stage4-m52-no","price":220.0,"currency_code":"USD","in_stock":true},{"title":"M52\/S52 \/ 18mm","offer_id":43187121225822,"sku":"vrk-single-stage4-m52-18","price":230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/0845\/3982\/files\/rg-ultimate-single-vanos.png?v=1787078188"},{"product_id":"single-vanos-anti-rattle-bearing-kit","title":"Single VANOS Anti-Rattle Bearing Kit","description":"\u003ch2\u003eBMW Single VANOS High-Performance Bearing Rattle Repair Kit\u003c\/h2\u003e\n\u003cp\u003eEliminate the infamous BMW Single VANOS rattle with our \u003cstrong\u003eHigh-Performance Single VANOS Bearing Rattle Repair Kit\u003c\/strong\u003e, engineered specifically for BMW Single VANOS units.\u003c\/p\u003e\n\u003cp\u003eAs BMW Single VANOS units accumulate mileage, wear within the piston bearing assembly can create excessive axial play. The result is the familiar metallic VANOS rattle coming from the front of the engine, often described as \u003cstrong\u003emarbles or rocks rattling around inside the timing system\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOur bearing kit replaces the worn factory bearing components with a \u003cstrong\u003ehigh-performance roller bearing assembly \u003c\/strong\u003edesigned to reduce unwanted movement, eliminate VANOS bearing rattle, and restore proper operation of the VANOS piston assembly.\u003c\/p\u003e\n\u003cp\u003eThis kit is designed for Single VANOS units found on BMW \u003cstrong\u003eM50TU, M52, S50, and S52 engines. (Does not fit European S50B32 engines)\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eKit Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 VANOS Bearing Ring\u003c\/li\u003e\n\u003cli\u003e2 High-Performance Roller Bearings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIndividually Fitment Checked\u003c\/h3\u003e\n\u003cp\u003eBearing fit is extremely important when rebuilding a VANOS unit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEvery bearing kit is checked for proper fit using a brand-new VANOS unit before it leaves us.\u003c\/strong\u003e This gives us a known factory-spec reference point for the bearing assembly.\u003c\/p\u003e\n\u003cp\u003eHowever, your VANOS unit may have accumulated decades of wear. Because of variations in wear between individual units, \u003cstrong\u003eminor adjustment of the bearing ring or race may be required to achieve the correct fit and preload in your specific VANOS assembly.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is normal and allows the bearing assembly to be precisely fitted to your VANOS rather than relying on a one-size-fits-all tolerance.\u003c\/p\u003e\n\u003ch3\u003eWhat Does VANOS Bearing Rattle Sound Like?\u003c\/h3\u003e\n\u003cp\u003eA worn Single VANOS bearing assembly typically creates a metallic rattling or buzzing noise from the front of the engine. Many owners describe it as sounding like \u003cstrong\u003ea handful of marbles or small rocks being shaken around inside the VANOS unit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe noise may be especially noticeable at certain engine speeds and can easily be mistaken for timing chain or timing system noise.\u003c\/p\u003e\n\u003cp\u003eReplacing the worn bearing components and properly setting the bearing preload helps eliminate this excessive movement and restore proper VANOS operation.\u003c\/p\u003e\n\u003ch3\u003eDon't Be Fooled by Cheap VANOS Bearing Kits\u003c\/h3\u003e\n\u003cp\u003eNot all VANOS rebuild components are created equal.\u003c\/p\u003e\n\u003cp\u003eThere are cheaper bearing kits available online, but \u003cstrong\u003ebearing quality, tolerances, and fitment matter\u003c\/strong\u003e. There's a reason some kits cost significantly less.\u003c\/p\u003e\n\u003cp\u003eOur high-performance roller bearing components are specifically selected for the BMW Single VANOS application, and \u003cstrong\u003eevery kit is checked in a brand-new VANOS unit for proper reference fitment before being sold\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhen you're taking apart your VANOS unit, saving a few dollars on one of the most important components inside it isn't worth doing the job twice.\u003c\/p\u003e\n\u003ch3\u003eBearing Fitment \u0026amp; Adjustment\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Because used VANOS units can have different amounts of wear, some bearing assemblies may require minor adjustment during installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e400-grit sandpaper must be used for the following adjustment procedures.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eTo Tighten the Bearing\u003c\/h4\u003e\n\u003cp\u003eIf \u003cstrong\u003eaxial play is present or there is insufficient preload\u003c\/strong\u003e, the bearing ring can be carefully sanded to tighten the assembly.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ePlace a sheet of \u003cstrong\u003e400-grit sandpaper\u003c\/strong\u003e on a solid, completely flat surface.\u003c\/li\u003e\n\u003cli\u003eUsing medium pressure, sand one surface of the bearing ring back and forth approximately \u003cstrong\u003e6–8 inches, 30–40 times\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eRotate the ring \u003cstrong\u003e90 degrees\u003c\/strong\u003e and repeat the sanding procedure.\u003c\/li\u003e\n\u003cli\u003eFlip the ring over and repeat the procedure on the opposite surface.\u003c\/li\u003e\n\u003cli\u003eRotate the ring another \u003cstrong\u003e90 degrees\u003c\/strong\u003e and repeat.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis procedure removes only a very small amount of material—approximately \u003cstrong\u003e0.004–0.006 mm from the total thickness of the ring\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eReassemble and check bearing fit and preload. Repeat only if additional adjustment is necessary.\u003c\/p\u003e\n\u003ch4\u003eTo Loosen the Bearing\u003c\/h4\u003e\n\u003cp\u003eIf \u003cstrong\u003eexcessive force is required to rotate the VANOS piston\u003c\/strong\u003e, the bearing race can be carefully sanded to increase clearance.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ePlace a sheet of \u003cstrong\u003e400-grit sandpaper\u003c\/strong\u003e on a solid, completely flat surface.\u003c\/li\u003e\n\u003cli\u003eUsing medium pressure, sand one surface of the bearing race back and forth approximately \u003cstrong\u003e6–8 inches, 30–40 times\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eRotate the race \u003cstrong\u003e90 degrees\u003c\/strong\u003e and repeat the sanding procedure.\u003c\/li\u003e\n\u003cli\u003eFlip the race over and repeat the procedure on the opposite surface.\u003c\/li\u003e\n\u003cli\u003eRotate the race another \u003cstrong\u003e90 degrees\u003c\/strong\u003e and repeat.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis procedure removes approximately \u003cstrong\u003e0.004–0.006 mm from the total thickness of the race\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eReassemble and check the piston for proper movement. Repeat only if additional adjustment is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlways remove material gradually. It is much easier to remove additional material than to correct a component that has been sanded too far.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eFitment Guide\u003c\/h3\u003e\n\u003cp\u003eThis bearing kit is designed for applicable BMW \u003cstrong\u003eSingle VANOS\u003c\/strong\u003e units used with the M50TU, M52, S50, and S52 engine families.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears \/ Production\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e320i\u003c\/td\u003e\n\u003ctd\u003e1992–1998\u003c\/td\u003e\n\u003ctd\u003eM50TU \/ M52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e323i \/ 323is\u003c\/td\u003e\n\u003ctd\u003e1995–1999\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e325i \/ 325is\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e328i \/ 328is\u003c\/td\u003e\n\u003ctd\u003e1995–1999\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3 (US)\u003c\/td\u003e\n\u003ctd\u003e1995\u003c\/td\u003e\n\u003ctd\u003eS50B30US\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3 (US)\u003c\/td\u003e\n\u003ctd\u003e1996–1999\u003c\/td\u003e\n\u003ctd\u003eS52B32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520i\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e525i\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e525ix\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003ctd\u003eM50TU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520i\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e523i\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e528i\u003c\/td\u003e\n\u003ctd\u003e1996–9\/1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE38\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e728i \/ 728iL\u003c\/td\u003e\n\u003ctd\u003e1995–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\/7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZ3 2.8\u003c\/td\u003e\n\u003ctd\u003e1997–1998\u003c\/td\u003e\n\u003ctd\u003eM52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\/7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZ3 M Roadster (US)\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003ctd\u003eS52B32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\/8\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZ3 M Coupe (US)\u003c\/td\u003e\n\u003ctd\u003e1999–2000\u003c\/td\u003e\n\u003ctd\u003eS52B32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eImportant S50 Fitment Information\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eUS-spec S50B30US:\u003c\/strong\u003e The 1995 US-market E36 M3 uses a Single VANOS S50B30US engine and is an applicable Single VANOS application.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEuropean S50B30:\u003c\/strong\u003e Not Applicable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEuropean S50B32:\u003c\/strong\u003e Not Applicable\u003c\/p\u003e\n\u003ch3\u003eImportant Production-Date Note\u003c\/h3\u003e\n\u003cp\u003eBMW changed several models from \u003cstrong\u003eM52 Single VANOS to M52TU Dual VANOS\u003c\/strong\u003e around the 1998–1999 production period. Model year alone is not always sufficient to determine which VANOS system is installed.\u003c\/p\u003e\n\u003cp\u003eFor vehicles produced around this transition, verify the \u003cstrong\u003eengine code and VANOS configuration\u003c\/strong\u003e before ordering.\u003c\/p\u003e\n\u003ch3\u003eFix the Rattle at the Source\u003c\/h3\u003e\n\u003cp\u003eIf your BMW's Single VANOS sounds like a box of marbles, don't just live with the noise. Our high-performance bearing kit addresses the excessive play within the VANOS bearing assembly and gives you the components needed to precisely fit the bearing to your individual VANOS unit.\u003c\/p\u003e\n\u003cp\u003eWhether you're repairing an existing VANOS rattle or performing a comprehensive VANOS rebuild, this is an ideal upgrade while the unit is already apart.\u003c\/p\u003e","brand":"VANOS Rebuild Kits","offers":[{"title":"Default Title","offer_id":43216523657310,"sku":"vrk-single-rattle-kit","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/0845\/3982\/files\/bmw-single-vanos-rattle-kit03_064d43f7-cc3c-41e1-bdcf-fb9aa34afc14.png?v=1787744527"}],"url":"https:\/\/vanosrebuildkits.com\/collections\/m50tu-m52-single-vanos-rebuild-kits.oembed","provider":"VANOS Rebuild Kits","version":"1.0","type":"link"}