Idle Speed/Air control Valve p/n 0025401497
Thread Starter
Newbie
Joined: Jul 2010
Posts: 10
Likes: 0
W210 270 CDI
Idle Speed/Air control Valve p/n 0025401497
I am trying to figure out hunting problem on my 270 CDI for over 6 months now with no luck. Have changed MAF, O-rings and diesel pipes. Will be changing the throttle position potentiometer next. while ordering the TPS i found out that an idle speed/Air control sensor is used on the petrol versions and was wondering if that could be the cause of the problem. if i need to locate this sensor on my car where should i look? help out a newbie here the problems on this car are killing me 
Junior Member
Joined: Feb 2011
Posts: 16
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From: Louisville
Mercedes c230 kompressor 4dr sport sedan
Change-Over Valve for Air Injection System
This vavle is located on my c230 uder the valve cover. You should be able to follow the secondary air injection system tubes to the valve that your trying to replace. If not, just grab a haynes manual off the internet. I had to do that myself and it's helped me out more than 20 times already. Well worth the money.
