DISA Valve Repair & Upgrade Kit – BMW M52TU Engines
Protect your engine and restore lost low-end torque with this high-precision DISA valve rebuild kit. The original BMW DISA unit (Differentiated Intake System) often fails because of its plastic construction. A loose or broken plastic flap isn't just a performance issue—it's a ticking time bomb that can be sucked into your engine, causing catastrophic damage.
Our kit replaces the weak plastic internals with durable, precision-engineered aluminum components, ensuring a permanent fix.
Common Symptoms of Failure
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Engine Rattle: A distinct clicking or "marbles in a tin can" sound from the intake manifold.
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Loss of Power: Reduced torque at low and medium RPMs.
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Increased Fuel Consumption: Poorly managed airflow leads to inefficient combustion.
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Fault Codes: "Lean" mixture codes or intake runner control errors.
Why Choose Our Aluminum Upgrade?
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Engine Safety: Unlike the plastic OEM version, our aluminum flap cannot break off and enter the intake manifold.
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Permanent Fix: The kit features a solid rod connection between the lever and the blade, eliminating the vibrations and "play" that cause the original part to fail.
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Cost-Efficient: Avoid spending hundreds on a complete new DISA unit (11611440049 or 11611432557) that will eventually fail again.
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Precision Engineering: Includes an aluminum spatula and crankshaft arm for a perfect, friction-free rotation.
Compatibility Guide
Original BMW DISA Part Numbers:
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11611440049
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11611432557
Engine Compatibility:
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Specifically designed for the BMW M52TU dual-resonance intake engine.
Vehicle Fitment:
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3 Series: E46 (323i, 328i)
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5 Series: E39 (523i, 528i)
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7 Series: E38 (728i)
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Z3 Series: E36 (2.3, 2.8)
What’s Included in the Kit:
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1x Aluminum Flap (Spatula)
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1x Aluminum Crankshaft Arm
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1x Steel Pivot Rod
Tech Tip
If you have already removed your flap and are driving without it, you are losing significant low-end power. This kit allows you to reinstall the flap functionality safely, restoring the "punch" your BMW had when it left the factory.
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Orders ship within 1–2 business days.
Standard delivery:
- USA: Some items ship from our US warehouse and arrive within 3 business days.
- USA-EU: 10–21 business days
- Worldwide: 14–30 business days
Shipping cost is shown at checkout.
Can I exchange or return an item?
Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights
To use this feature, please make sure that:
- the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
- the goods are fully completed and the integrity of the packaging is not violated
- retained all labels and factory markings