Leaks found. How to fix? - PeachParts Mercedes-Benz Forum

dieseldan44 · #5 09-01-2009, 08:33 AM

Quote:

Originally Posted by jmcgill

I have isolated the two main leaks on my 300d. I was under it last night when I was changing the oil, and was able to determine that the main drip is coming from the oil filter assembly where it mates to the block. How hard is it to change out this gasket? I don't know if its related, but when I changed the oil last night, the o-rings on the rod of the filter "cap" were about as hard and brittle as anything I've seen....I don't know if that contributed to the leak, but I put new o-rings on.

The other leak is a faulty valve cover gasket...which is weird because it is brand new. I just put it on this weekend, but it leaks all around the drivers' side....must be that I didn't clean the mating surface well enough, or it's just the fact that it's not a German gasket. I'm ordering a new one.

Is there some trick to installing the Valve Cover gasket?

Before you swap the oil canister gasket, often the bolts get loose over time. You can try just tightening the hex bolts. You'll need to modify an allen key but cutting part of the L off to get in there on one of the bolts.

This fix has worked on both of my 300D's, and many other forum members cars. Removing the oil filter housing is from what I can tell quite difficult. The power steering box is really in the way.

dd