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Finally got a "me" day to finish up with the install. Can't believe the C63 sat almost a month in the garage. Props to @roadkillrob for the parts numbers on the valve cover bolts and others for their feedback..
Bolts are single use technically and the insert on the bolt crushes a bit when torqued to set the proper pressure, so new bolts will likely fix your issue as long as the seal didn't roll or something else happen like a crack, the crack in mine was hard to find, resealed it twice before I really took a good look and putting a little pressure on the cover like I was trying to bend it made the crack stand out.
How do you work out that the bolts are single use? WIS shows refitting of the bolts. At 10n/m, they are clearly NOT torque to stretch/tension.
I'm planning on doing this job soon: RHS leak onto the exhaust (2010 E63), so want to make sure I cover the bases.
Also, WIS shows the use of sealant (1.5mm bead around the mating surfaces), and you can buy MB gasket sealant. Has anyone used sealant when replacing the valve cover gaskets? If yes, did you use the MB stuff?
Hi guys, just tackled the same oil leak as you have described as above, Oil seeping from the Right Hand bank towards the fire wall. The previous owner/garage already tried a cheap fix before us with gasket sealer along the bottom edge of the cam cover. A bit of inspection in that area has found a hairline crack on the area that the oil was seeping through as well as flat spots on the original gasket. So it would be worth noting for anyone who has the same issue in future to check for cracks on the plastic cover 😁👍
I had the same hairline crack! So hard to spot without taking off.
Replaced both covers as they come as a
kit, new bolts and seals.
02-08-2021, 04:42 AM
