E-Class (W212) 2010 - 2016: E 350, E 550

Am I the recored holder? (Bluetec Oil Cooler Leak)

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Old 12-05-2018, 04:47 PM
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E350 Bluetec
Am I the recored holder? (Bluetec Oil Cooler Leak)

So the dreaded oil cooler leak hit this week with my 2012 E350. Plenty of the black stuff on the driveway on Sunday. Took it to my favorite indy shop in Charlotte. Much to my surprise, it appears I have the ORIGINAL orange oil cooler seals and not the upgraded purple ones. My W212 BT has 99,768 miles on it. The word here in diesel land is these seals usually go around 50k or 60k. So...am I the record holder for most miles on the orange seals? Post you responses here.

Old 12-09-2018, 06:02 AM
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2012 S350 Bluetec, 2014 GLK250 Bluetec, 2000 CLK320 Cabrio
I saw this post a few days ago - I am surprised nobody has responded, but that's a pretty rare car. I had one when they were new but never kept it long enough to develop any problems like this with it. I also had a 2007 Jeep Grand Cherokee diesel with 40K miles on it, and I had issues with the intake to turbo orange seal. I do recall it was orange. I can only imagine that the oil cooler seal was starting to do the same too.

Is that seal hard to replace?
Old 12-09-2018, 07:54 AM
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E350 Bluetec
Originally Posted by 300SE1993
I saw this post a few days ago - I am surprised nobody has responded, but that's a pretty rare car. I had one when they were new but never kept it long enough to develop any problems like this with it. I also had a 2007 Jeep Grand Cherokee diesel with 40K miles on it, and I had issues with the intake to turbo orange seal. I do recall it was orange. I can only imagine that the oil cooler seal was starting to do the same too.

Is that seal hard to replace?
It is a major pain. It sit in the valley below the turbo intake and between the ignition coils. 8-10 hours for a pro and 14-16+ for your average DIY-er. Many, many bolts. Te new oil cooler seals are the purple type. Supposedly better than the orange ones that were removed. I may or may not have done the swirl flap delete while it was opened up.
Old 12-09-2018, 10:35 AM
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2012 S350 Bluetec, 2014 GLK250 Bluetec, 2000 CLK320 Cabrio
Originally Posted by carsandcapp
It is a major pain. It sit in the valley below the turbo intake and between the ignition coils. 8-10 hours for a pro and 14-16+ for your average DIY-er. Many, many bolts. Te new oil cooler seals are the purple type. Supposedly better than the orange ones that were removed. I may or may not have done the swirl flap delete while it was opened up.
Sounds about as fun as my 3 day engine mount job on my E350 4matic LOL
Old 01-15-2019, 03:01 PM
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e350 bluetec
Just did mine. Oil leak at 120K miles - orange seals. Now purple.
Old 01-15-2019, 06:27 PM
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'08 S550 P3; Golf Carts; MT Bike; Scooters
I only made it to 50K before my oil cooler seals leaked, and I swapped them.
DIY was 16 hours, and a lot of that time was cleaning the intake of gunk. The shop would not do this unless instructed to.
Old 01-17-2019, 12:30 PM
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2010 e550 p2
I had to change my oil cooler seals , original ones were orange , and i also replaced them with orange ones. So the question is... purple seals are for certain years or certain models?? Because whe i was shopping for them all i saw were black or orange
Old 01-17-2019, 12:37 PM
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1922 Ford Model T / no OBD
I have records that on my 2008 E320 BT the seals were replaced at 140k.
Sure it sucks where $5 seals cost you 4-digits in labor cost, but it is what it is.
Old 04-07-2019, 06:14 PM
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2008 E320 Bluetec
Is that "E320BT" Or should that have read E250 BT ? or E320 T ?
Old 04-07-2019, 09:00 PM
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W212 M276 DELA 30 ; W211 OM642 ; R107 M117, Sierra 1500 LZ0
I made it to about 120K before I proactively did mine, but I still didn't need it at that point. It is a 2007 W211 OM642

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