is this the MAF or something else


New Member
Dec 21, 2008
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I have a W202 230K, 1999.

This has done just over 120K.

when you start the car it idles fine, revs fine.

when you drive it, it mis fires constantly, it will not go above 4000rpm and is in a sort of limp mode.

This has progressively got worse and worse until I cannot drive it any more :mad:

I am thinking it might be the MAF sensor, but not sure, before this occurred I replaced all the piping for the MAF as there was oil in my air filter, but I am not sure if I did this too late or not.

Or could this be something else causing the mis firing???

your help is much appriciated.


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