trite

I have a 2005 Mercedes c230 kompresor everything's functioning properly except the idling. It's also weird because it doesn't do it all the time. When in park it doesn't seem to be as bad versus drive and reverse. The idle jumps up and down and I have the check engine light on with P0020. Could anyone tell me what's going on? Much appreciated.

Plutoe

Bad throttle body!!

trite

What makes you say bad throttle body?

alecmascot

Have a read through this :http://tinyurl.com/menppc6