idle lumpy on e36 325 tds

[Phantom221]

i have a 1994 m reg 325 tds auto. when the car is at tick over it is lumpy reving between 600rpm and 750 rpm. i have run some redex through the system and it ha made it a bit better but when im at the lights the whole car rocks from side to side. wat can be the problem. cheers

[96_323]

Have you cleaned the I.C.V yet?

[Phantom221]

I didn't know it had one. Where abouts is it in the engine bay. Cheers.

[96_323]

Yea a dirty idle control valve is usually the suspect of bad idling. That or an air leak. More than likely the 1st one though, heres a step by step guide off e36blog.com.

http://www.bmwe36blog.com/2007/06/23/cl ... valve-diy/