R320 oli leak
Thread Starter
Junior Member
Joined: Feb 2008
Posts: 53
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From: indiana
2008 R320, 2009 Routan ChryWagen (gone) 1998 E430 (gone) 2007 X5 (gone) 2001 X5 (gone) 1995 M3 LUX
R320 oli leak
Cannot find the source of the leak. it has saturated the insulation cover on the oil pan. it drips which in turnovers everything behind the oil pan with oil which then drips onto the cover and onto the concrete drive. which is almost impossible to remove from the concrete. have unbolted the insulation enough to check the front and side of the pan. no leaks there. oil plug is tight and sensor does not leak. cannot see any source anywhere on the block and plumbing for the cooler. did find the connection for the breather (in front of turbo) to be loose. have fastened it in place using plastic ties.
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Joined: Dec 2011
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From: Spain UTC/GMT +2 hours
W213 All-terrain
You can search here or YouTube for 'oil cooler leak OM642", maybe this is source of leaking.
On the backside of the engine through a technological hole, the oil drips in the direction of the transmission...
On the backside of the engine through a technological hole, the oil drips in the direction of the transmission...
Thread Starter
Junior Member
Joined: Feb 2008
Posts: 53
Likes: 0
From: indiana
2008 R320, 2009 Routan ChryWagen (gone) 1998 E430 (gone) 2007 X5 (gone) 2001 X5 (gone) 1995 M3 LUX
May have found the source of the oil leak. The hose that attaches to the air intake directly in front of the turbo was most of the way out of it's connector. plugged it back in but it was very loose. short term fix was plastic ties from a sensor housing at the turbo connection to the air intake pipe for the turbo. will wait a week to see if it still drips oil onto the driveway. spent a couple of hours using my flex grabber with pieces of soft sponge in the jaws pushing it into every crack and cranny in the area between the intake manifolds. it came out dirty and with a little old oil on it but no new oil. have not looked at the bell housing yet toes if there is oil on it, but since my problem is at the front of the engine i doubt there being oil there. if it keeps dripping it will go to the shop. don't feel comfortable doing the work to replace the cooler seals.
