German Auto Solutions BMW M54 DISA Valve Repair & Upgrade Kit

**PLEASE VERIFY FITMENT BELOW BEFORE ORDERING**

Fix one of the most common failure points on the BMW M54 intake system with the German Auto Solutions DISA Valve Repair & Upgrade Kit.

The DISA valve, also known as BMW's Intake Manifold Adjuster Unit, allows the M54 intake manifold to change its effective runner length depending on engine speed. This helps provide strong low- and mid-range torque while still allowing the engine to breathe efficiently at higher RPM.

It's a clever system, but the original DISA valve has a few weaknesses. As the factory components wear, the DISA can begin to rattle, develop excessive play, and eventually fail. In severe cases, components can come apart and potentially enter the engine through the intake manifold.

Rather than replacing an otherwise functional Genuine BMW DISA valve, German Auto Solutions developed this kit to rebuild and upgrade the original assembly with precision-machined components designed to eliminate the factory wear points.

Why Do M54 DISA Valves Fail?

Inside the factory DISA valve, the bell crank lever and flapper valve repeatedly vibrate against one another where their hex-shaped sections engage.

Over thousands of miles, this constant movement causes wear between the components. The glass-reinforced material of the flapper can gradually wear away the weaker male hex section of the bell crank lever.

Once this wear begins, play between the components increases and the deterioration accelerates. Eventually, the connection can become severely worn or fail completely.

Common symptoms of a worn M54 DISA valve include:

• Rattling from the intake manifold
• Rough or unstable idle
• Lean-condition fault codes
• Loss of low- and mid-range torque
• Hesitation during acceleration
• Poor throttle response
• Excessive play in the DISA flapper
• Failed or loose internal DISA components

A rattling DISA valve shouldn't be ignored. If the internal components become loose enough to separate, pieces can potentially be drawn into the engine.

Upgrade Instead of Just Replacing

The German Auto Solutions repair kit replaces the failure-prone components inside your original Genuine BMW DISA valve with precision-machined upgraded parts.

Components are manufactured from aircraft-grade aluminum and stainless steel, eliminating the weak factory components responsible for many DISA failures.

The result is a rebuilt OEM DISA valve with upgraded internal components designed for substantially improved durability.

Product Features

• 100% designed and manufactured by German Auto Solutions in the USA
• Precision CNC-machined components
• Aircraft-grade aluminum construction
• Stainless steel components
• Designed to eliminate common OEM DISA wear points
• Everything required to install the repair kit is included
• Detailed online installation instructions available
• Limited lifetime warranty on kit components

⚠️ IMPORTANT — OEM BMW DISA VALVES ONLY

THIS REPAIR KIT ONLY FITS ORIGINAL OEM / GENUINE BMW DISA VALVES.

The kit is NOT compatible with aftermarket replacement DISA valves, including:

• Rein
• Dorman
• Vaico
• URO
• Other non-OEM replacement DISA assemblies

If your original Genuine BMW DISA has previously been replaced with an aftermarket unit, this repair kit will not fit.

Before ordering, verify that your vehicle still has an original BMW DISA valve and confirm the BMW part number or number stamped into the DISA housing.

Warranty

German Auto Solutions backs the components in this repair kit with a limited lifetime warranty.

Additionally, if another portion of your original DISA valve fails within five years of purchase, German Auto Solutions offers credit equal to 100% of the original repair kit purchase price toward a new OEM BMW DISA valve or G.A.S. DISA Gold Valve.

This coverage includes failures of other DISA components such as the vacuum pot, electric vacuum solenoid, and bell crank seal, subject to German Auto Solutions' current warranty terms and conditions.

Installation Instructions

Detailed step-by-step installation instructions are available directly from German Auto Solutions:

VIEW INSTALLATION INSTRUCTIONS

M54 2.2L & 2.5L Fitment

For OEM BMW DISA valves with:

BMW Part Numbers

• 11617544806
• 11617502269

Numbers Stamped on DISA Housing

• 7544806
• 7502269

Important M56 / SULEV Note

Some E46 325 models, particularly California-emissions vehicles, were equipped with the M56 SULEV engine instead of the standard M54B25.

M56 2.5L DISA valves require the 3.0L version of this repair kit.

Do not order based solely on the 325i or 325Ci model designation. Verify the engine and DISA housing number before ordering.

M54 3.0L Fitment

For OEM BMW DISA valves with:

BMW Part Numbers

• 11617544805
• 11617502275

Numbers Stamped on DISA Housing

• 7544805
• 7502275

Verify Your DISA Before Ordering

BMW used different-sized DISA assemblies depending on engine configuration. The easiest way to ensure you order the correct kit is to check the number stamped directly onto your original DISA housing.

2.2L / 2.5L Kit

• 7544806
• 7502269

3.0L Kit

• 7544805
• 7502275

Remember: M56 SULEV 2.5L engines use the 3.0L repair kit.

Keep the OEM DISA. Fix the Weak Point.

If your original BMW DISA valve is still functional but has developed play or rattle, there's no reason to throw away the entire assembly.

The German Auto Solutions DISA Repair & Upgrade Kit allows you to retain the original OEM BMW housing and actuator while replacing the failure-prone internal components with precision CNC-machined aluminum and stainless steel upgrades.

Fix the rattle, eliminate the weak factory components, and restore proper operation of your M54's variable intake system.