The DISA valve is a common failure on the M54 BMW engines and is caused by the poor materials used in the manufacturing process in a couple of the key valve components. The three parts of the DISA are the flat plastic flapper valve, the bell crank lever that rotates the flapper, and the vacuum pot, all made of glass reinforced nylon.

A DISA Valve in otherwise good shape (or one you are refurbishing). I highly advise getting a second DISA Valve from the junkyard, Ill explain more. A O-ring for reinstalling the DISA Valve. Their is a test you can perform to see if your diaphragm is leaking on your DISA Valve.

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I did think about doing the O ring, but my daughter is taking this car for 5 months out of state and with 129K on the odometer, i figured i should just replace it at this point. 1,053 disa valve products are offered for sale by suppliers on Alibaba.com, of which valves accounts for 1%. A wide variety of disa valve options are available to you, such as water. You can also choose from 1.5 years, 1 year, and 2 years disa valve, as well as from manual disa valve, and whether disa valve is medium temperature.

Bmw DISA Valve Unit Rattle Repair Fix Kit Rattling Repair Instruction Guide : Rattling noise coming from the DISA valve? SES light lit and getting lean mixture faults. Rough running at idle. DTC codes and a loss in low end torque. Rattling, buzzing or clicking noise from the engine?Fault codes: lean condition(P1083, P1085), f…

The failure is caused by the type of materials used in the manufacture of two of the three key valve components. To replace a DISA Valve, first locate the valve in the engine: Remove the two (2) Torx screws to pull out the DISA valve unit: It will look something like this: (The orange circle is the O-Ring that will be replaced. Ours are black with a clear coating.) The valve will be dirty. Clean it with a simple spray cleaner and rag.

A DISA Valve in otherwise good shape (or one you are refurbishing). I highly advise getting a second DISA Valve from the junkyard, Ill explain more. A O-ring for reinstalling the DISA Valve. Their is a test you can perform to see if your diaphragm is leaking on your DISA Valve.

In an effort to improve performance, BMW released the DISA valve in 1995. Installing the new DISA Valve: Step 1:. Wipe away any contaminants from the gasket surface inside the intake manifold with a clean, lint-free towel. Step 2:. Press in firmly on the valve to make sure it is fully seated into the manifold. Step 3:. Install the two bolts which secure the DISA valve to 2019-12-14 2019-04-23 BMW 330i 325i E46 DISA Valve Operation Test - YouTube.

Bmw DISA Valve Unit Rattle Repair Fix Kit Rattling Repair Instruction Guide : Rattling noise coming from the DISA valve? SES light lit and getting lean mixture faults. Rough running at idle. DTC codes and a loss in low end torque. Rattling, buzzing or clicking noise from the engine?Fault codes: lean condition(P1083, P1085), f… BMW E 90 2.5 N 52 Valvetronic. The car came to us on a tow truck because the owner, after starting the engine, heard non-room tapes in the engine and not equal to the engine's work. After the presentation, it turned out that the disa valve had been damaged and the tamp from this valve fell into the combustion chamber.
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If rattling as you say, you're right to replace it. Don't attempt a repair. The DISA valve, otherwise known as the "Intake Manifold Adjuster Unit", is located on the side of the intake manifold and is a common failure item on the BMW M54 engines. The failures are caused by the use of plastic parts for critical components of the DISA valve and the way the parts snap together. The DISA valve is a common failure on the M54 BMW engines and is caused by the poor materials used in the manufacturing process in a couple of the key valve components.

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The DISA valve, otherwise known as the «Intake Manifold Adjuster Unit», is located on the side of the intake manifold and is a common failure on the M54 and M52TU BMW engines. The failure is caused by the type of materials used in the manufacture of two of the three key valve components.

Don't attempt a repair. The DISA valve, otherwise known as the "Intake Manifold Adjuster Unit", is located on the side of the intake manifold and is a common failure item on the BMW M54 engines. The failures are caused by the use of plastic parts for critical components of the DISA valve and the way the parts snap together.

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The DISA valve is located in the inlet plenum chamber and controls the variable length intake manifold giving better torque at low revs by closing, keeping the intake runner long. After higher engine speeds, it opens up and makes the intake runners shorter for more horsepower.

The DISA Valve is located on the intake manifold, and can be accessed relatively easily. The DISA Valve kits which we have assembled here at ECS Tuning will make the hardest part of the job the easiest, since they include all of the hardware necessary for added peace of mind. DISA Valves are Air Intake Control Valves introduced by BMW to improve performance by controlling the path or air as it flows through the engine. The name stems from the German ‘Differenzierte Sauganlage’ or Differentiated intake system in English. We will be posting a full TechASSIST bulletin to cover them in more detail soon. Hello, Sign in.