Hi, I'm a newby to this. My 1986 190e 2.3 has been idling very rough for quite a while and I have not been able to find the cause. I suspect the Idle Control Valve is not working. MB part number is 001411725. How do I test it? Thanks.
Hi, I'm a newby to this. My 1986 190e 2.3 has been idling very rough for quite a while and I have not been able to find the cause. I suspect the Idle Control Valve is not working. MB part number is 001411725. How do I test it? Thanks.
Do a compression test FIRST. Always start with the basics.
Have something to add? Share your thoughts — no account required.
Ask the community — no account required