crazypotato

At the connection on the passenger side, I see the connection is wet and wet at the sound proofing panel. I don't think it is something normal. Is it leaking oil out? Is it easy to fix it? perhaps with a new seal and clamping ring?

Diesel Benz

The engine has to breath to the low pressure side of the intake and the result is always some oil getting in. You could check the seal if it is OK and all the surfaces are clean, hopefully resolves this.

BLACKCDI

Yes I had the same exact thing happening. You need to go to the dealer and order 2 seals one of left and one for right side. pop them in yourself, about a 10 min job. Dry as a whistle now!

crazypotato

the seal wasn't sited properly at the factory!! I lube the seal with engine oil before i sit them in. The crazy turbo/power surge is mostly gone when I step on the gas pedal. It is much smoother now. It is an easy fix. Seal costs around a few bucks. I suggest anyone complaining the sudden power surge to go check their seals.

06e320cdi

There is a service bulletin on this. I had mine done at the dealer. My concern is first and foremost, why is there oil in the intake?? If there is that much crankcase pressure and its getting dumped from the PCV system then thats a design flaw. This PCV system such as in the W210 model with 606 engine, did nothing but clog the intake up with oily carbon.

This is mine at 32000 miles before repair. THis should have been caught by the CPO inspection, there is no excuse for this.

crazypotato

i think engine oil overfilling has some contribution to it too. However, all turbo engines have that issue. You can fit in a "catch can" to capture the oil in your intake.