PeachParts Mercedes-Benz Forum - View Single Post

tinypanzer · #10 04-27-2009, 05:39 PM

Hi there....

I have used valve cover bolts if you need 'em...... I'll send you a couple for free if you cover the measly $3 shipping cost.

Yes, those valve covers like to LEAK! I've been through three gaskets in about a year. Got my last one from the dealership, and I put it on with sealant. The aftermarket rubber seems to get hard very quickly, can't take the heat.

Some folks say I'm crazy for sealing mine down with MB sealant, I say "hey, it don't leak anymore"..... I was losing lots of oil to that stupid gasket, and it was dripping onto my exhaust creating a noxious plume of smoke that would fill the car. Way more annoying that having to clean off my sealant next time I pull the valve cover. You will also find that the oil cap gasket leaks......

Yes, the M103 does have a head gasket issue, but 55K seems a bit early for it by most accounts. Though, the car is almost 20 years old. Still, the head gasket leak is a known issue and you may have to do it eventually. I'd start with all the rubber bits first though.

There are lots of little places for vacuum leaks on this setup, so check all your air hoses carefully when you're in there. Replace as many as you can, especially the vacuum hose that goes to the valve cover.......