2011ML550

Was thinking this was indicative of valve cover gasket leak. Two photos are of left side and one photo of right side without suspected leak. Is it fairly easy to replace valve cover gasket?

2011ML550

or would this possibly be caused by leaking fuel injector

JettaRed

iTrader: (1)

I suggest you read this instruction first and then post your question. We cannot assume your vehicle is identified by your ID or related information.

https://mbworld.org/forums/mercedes-...on-please.html

Having said that, it's likely a valve cover leak, which the dealer will want a lot of money to fix. But you have to ask yourself, what damage will this do? How bad is it leaking? It is just as easy to clean it every now and then with some engine cleaner and compressed air?