I have a 02 C240 that I have had about a month now and just had the oil changed and the mechanic showed me the bottom side of the oil cap that had some water on it mixed with the oil. I know this could be a possible sign of a head gasket but my question is are there any problems with these V6 motors that could cause this? The car runs great but I want to get this corrected as soon as possible.

 

Very normal for winter months on all Benz engines.
Wipe it off ones a month and everything will be fine when weather warmes up.
Bernard

 

This is normal with all German engines. I also have a 3.0 X5, horrible sludge. I change the oil before winter, get on the interstate about two to three times a month for about 30 minutes, then change oil in march again to get the sledged up oil out. German engines are designed for higher running temps and longer drives.

I used to granny my cars until my shop said I should get on it once in a while to get the core engine temps up and clean them out.