OM651 - Slight Oil Leak - turbo intake side (ish)

MinionBob

Senior Member
Joined
Jun 2, 2020
Messages
208
Reaction score
110
Location
SouthWest
Your Mercedes
Viano - 2012 - OM651 Engine - 2.2
I have a very, very slight oil leak, or more accurately misting of oil around the plastic piepwork on the intake side of the turbo. Difficult to see exactly where it is coming from as a few bends/junctions in this location.

A picture paints a thousand words; there is more leaking on the other side of the marked pipework that cannot be seen..

1.jpg

2.jpg

Anyone had this and have any pointers for fixing? Its not serious by any means but I have decided to remedy it. I'd rather just go to the dealers and buy a few seals/sections of pipework as opposed to take it all apart to find the cause so hoping for a steer on exactly where. Time is money and all that!
 
OP
M

MinionBob

Senior Member
Joined
Jun 2, 2020
Messages
208
Reaction score
110
Location
SouthWest
Your Mercedes
Viano - 2012 - OM651 Engine - 2.2
  • Thread Starter
  • Thread starter
  • #2
Having done some more digging, the part number is A6395280624 - there are loads on Ebay if you want to see in more detail.

While the pipe looks as though it is is different sections it is actually one-piece and glued. my arrows on pic#2 are pointing to where the glued joint is. I am leaning towards a hairline crack or similar having formed in one of the glued joints over time. Where the pipe seals onto the turbo looks clean so don't think the seal has failed.
 

Avantgarde Automotive, Mercedes-Benz and SLR McLaren specialists. Service, repairs, diagnosis and motorsport preparation.
Unit 14 Hither Green Trading Estate, Clevedon, Somerset, BS21 6XU Tel: 01275 217270 Email:steve@avantgarde-automotive.co.uk
www.avantgarde-automotive.co.uk
Top Bottom