1999 C230K (202.024) 102k miles - I would like to replace the PCV valve. Not sure where it is located. Is it the plastic component screwed to the side of the valve cover with several hoses connected to it? If this is it, I noticed some oil residue on this piece. Does anyone have the MB p/n for it? I searched Google but found nothing about the replacement part. Are there any special precautions I should take while replacing it?

Thank you for your assistance,

Buck

Interesting, in 32 years of working on MBs I have never replaced a PCV valve.

I think they don't have one. On the 111 motor I haven't looked but I imagine they are like most MBs in that they have a metered oriface that occasionally gets dirty but usually doesn't get replaced. Since I think some of them are plastic they may break, but they will be located somewhere in the breather hose going to the idle air.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician