Photos of GLK250 engine
Super Member
Joined: Aug 2011
Posts: 861
Likes: 38
From: Philly area
350 GLK, C280
You can really see the ports for the front axle in the oil pan.
Brings back some memories.
Since the Turbo diesel runs 'un-throttled', there needs to be a vacuum pump. On the older MB diesels it use to be a diaphragm pump that ran off the front of cam shaft. The pump exhausted into the turbo input. Every 150,000 miles the diaphragm would develop a small leak and feed oil into the turbo. This did not cause any real problems except that at a stop light the oil would pool and then when you accelerated the pool would be pulled into the engine through the turbo. Again the engine didn't care except it would blow a cloud of BLACK smoke for the first 50 feet making the car behind disappear. A $10 part every 150k miles ain't shabby. Loved those diesels! Put over 250,000 on each of them.
Brings back some memories.
Since the Turbo diesel runs 'un-throttled', there needs to be a vacuum pump. On the older MB diesels it use to be a diaphragm pump that ran off the front of cam shaft. The pump exhausted into the turbo input. Every 150,000 miles the diaphragm would develop a small leak and feed oil into the turbo. This did not cause any real problems except that at a stop light the oil would pool and then when you accelerated the pool would be pulled into the engine through the turbo. Again the engine didn't care except it would blow a cloud of BLACK smoke for the first 50 feet making the car behind disappear. A $10 part every 150k miles ain't shabby. Loved those diesels! Put over 250,000 on each of them.
Super Member
Joined: Sep 2011
Posts: 714
Likes: 38
From: CANADA eh!
Very very slow
Senior Member
Joined: Apr 2013
Posts: 445
Likes: 8
From: Tucson AZ
2010 Mercedes GLK 350, 2001 BMW Z3 3.0 Roadster, 1997 Cherokee XJ
That type of oil leak may seem minor until you see the results of a turbo sucking oil on a bigger engine. Recall an almost new Dodge Cummins diesel which had catastrophic engine failure from this type of problem. Knucklehead driving it evidently ignore a few warning lights etc.
Thank you for the pictures. What with the quality of assembly today, keeping an engine clean is not as big a deal as it was once upon a time.
Thank you for the pictures. What with the quality of assembly today, keeping an engine clean is not as big a deal as it was once upon a time.
