BMW M60 Idle Control Valve – 2 Hours
The Repair Difficulty Level displays graphically how challenging the repair is, from easy to advanced. Easy repairs usually require very few tools, have short repair times and do not require jacking and supporting the vehicle. As the difficulty level rises, expect the repair to demand more time, specialized tools, and better understanding of mechanics to complete the job.
|Make||Body & Trim||Engine & Transmission|
|1995 BMW 530i||Base||3.0L V8 – Gas|
|1994 BMW 530i||Base||3.0L V8 – Gas|
|1995 BMW 540i||Base||4.0L V8 – Gas|
|1994 BMW 540i||Base||4.0L V8 – Gas|
|1995 BMW 740i||Base||4.0L V8 – Gas|
|1994 BMW 740i||Base||4.0L V8 – Gas|
|1993 BMW 740i||Base||4.0L V8 – Gas|
|1995 BMW 740iL||Base||4.0L V8 – Gas|
|1994 BMW 740iL||Base||4.0L V8 – Gas|
|1993 BMW 740iL||Base||4.0L V8 – Gas|
|1996 BMW 840Ci||Base||4.4L V8 – Gas|
|1995 BMW 840Ci||Base||4.0L V8 – Gas|
|1994 BMW 840Ci||Base||4.0L V8 – Gas|
A dirty or malfunctioning BMW M60 idle control valve will cause a rough idling engine, especially when the motor is cold. The good news is an idle control valve can be easily cleaned avoiding the need for an expensive replacement.
The BMW M60 8 cylinder engine has received a lot of bad press over the years. It has been continually lambasted over problems with its Nikasil lined engine block. The Nikasil engine block has been blamed for most of the rough idle issues with the M60 engine.
Cleaning the idle control valve should be part of your regular maintenance routine if you own a BMW with a M60 V8 engine.
There are other parts that can cause a rough idle in the M60 engine other than Nikasil lined cylinders. One of them is a malfunctioning BMW M60 idle control valve.
The M60 idle control valve is a motorized part controlled by the vehicle’s DME (the engine’s electronic control module). As the DME monitors the vehicles engine idle speed, it makes any needed adjustments through the idle control valve, which is attached to the intake manifold. A dirty valve will lead to it malfunctioning, causing a poor or rough idle and even engine stalling. Cleaning the idle control valve should be part of your regular maintenance routine if you own a BMW with a M60 V8 engine.
None needed unless you are replacing a defective idle control valve. If your valve is defective and can’t be cleaned as outlined below, replace with the following part:
|Part||Quantity||BMW Part #||Description|
|Idle control valve 33090||1||13411733090||M60 8 cylinder engine|
- Use a socket wrench to disconnect the negative terminal from the battery before starting this repair. Always cover the terminal with a clean rag to avoid accidental contact during the repair. If working on a vehicle with 2 batteries (8 series), disconnect the negative terminal from both batteries. ALWAYS disconnect the battery(s) before performing any type of mechanical repair, especially in the engine compartment.
- Remove the four 10mm nuts anchoring the top engine cover. Remove cover from engine bay.
- Identify the idle control valve on the front of the engine.
- Remove the electrical connection from the back of the valve by squeezing the retaining clip and pulling the plug off.
- Use a flat blade screwdriver to loosen the hose clamp connecting the vacuum hose to idle control valve. Use a flat blade screwdriver to pry the hose off of the valve, being extremely careful NOT to puncture the hose. If you puncture the hose, it will have to be replaced.
- Remove the rubber mount from the valve.
- Grasp the idle control valve and pull out of the intake manifold.
- Remove the rubber grommet (use a flat blade screwdriver if necessary). To avoid any vacuum leaks, always replace the rubber grommet with a new one (BMW Part # 13411733217) when cleaning or replacing the valve.
Cleaning the idle control valve
- Shake the valve softly in your hands. You should hear the internal mechanism opening and closing as you shake it. If you don’t, then the valve is stuck from carbon deposits.
- Take a can of high quality carburetor cleaner (we use CRC Clean-R-Carb) and thoroughly blast all of the carbon and gunk out of the valve. Repeat continuously letting it soak in between blasts. Use the whole can cleaning out the valve. When you softly shake the valve now you should hear the internal mechanism opening and closing.
- Use compressed air to thoroughly blow out all of the carburetor cleaner until inside of M60 idle control valve is dry.
- Your valve is now clean and can be reinstalled into the vehicle. Do not forget to use a new rubber grommet during installation of your cleaned M60 idle control valve.
- If you were unable to successfully clean your idle control valve, or if your valve is damaged, install a new one along with a new rubber grommet. See the “Parts” section above for the link to the correct replacement valve for the M60 engine.
BMW M60 Idle Control Valve Cleaning Finished
If you have any questions or comments, please feel free to contact us. And congratulations for Doing It Yourself!