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M156 2007 E63 engine block oil cooler seals

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M156 2007 E63 engine block oil cooler seals

 
Old 02-08-2017, 11:25 AM
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M156 2007 E63 engine block oil cooler seals

Has anyone changed out the O rings on the oil cooler lines coming out of the drivers side block located just above the AC unit. The twin lines are bolted into the block and drop down from aluminum tubing to hydraulic style hose then proceed to the oil cool in front.
The location is right in the middle of "how is this removable".
Has anyone done this O ring replacement, and DIY info would be greatly appreciated.
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Old 02-08-2017, 12:01 PM
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Old 02-08-2017, 03:32 PM
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Old 02-08-2017, 03:33 PM
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No one change out the O ring seals???? At the block side wall??
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Old 12-21-2017, 06:55 PM
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Has anyone attempted to do this?
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Old 12-21-2017, 09:01 PM
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never got a reply myself, typical
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Old 12-22-2017, 02:36 AM
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Does anyone have a part number?
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Old 12-23-2018, 07:17 AM
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Originally Posted by Critter View Post
Has anyone changed out the O rings on the oil cooler lines coming out of the drivers side block located just above the AC unit. The twin lines are bolted into the block and drop down from aluminum tubing to hydraulic style hose then proceed to the oil cool in front.
The location is right in the middle of "how is this removable".
Has anyone done this O ring replacement, and DIY info would be greatly appreciated.
Yes, Iíve changed out these oil rings earlier this year, and it wasnít exactly cheap either as these I-rings are difficult to replace as their in a very tight location. How we found the issue, I took my car in for its inspection at a local service station and they raise the car to check suspension and noticed the leak. I then took my car into my shop and they identified the issue as the oil return line o-rings. Of course the o-rings were cheap, but the labor wasnít as the AC compressor refrigerant had to be evac and replaced and disconnected to make room, oil lines loosened and brackets removed. What a pain in the *** to access. Also the engine coolant expansion tank was loosened and removed to make room, then we noticed the neck was broken and needed replacement, so this bill was adding up fast. 😩
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Old 12-23-2018, 07:30 AM
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Hello my friend, yes itis in one of those places that can be repaired in short time if the engine is on a motor stand ha ha ha.
Was wondering if the ac pump can be moved forward without taking off lines with maybe the serpentine belt and pump fasteners removed.
Not much room would be required, I have a 4 post hoist the car sits on for the winter but cannot actually see the total view oil line return connections.
Thought maybe it was a valve cover gasket but still in the unsure mode ?

What do you think about the moving of the ac pump ahead a small amount to get the the possible leak area??

Thanks for the reply you gave recently I thought maybe this was a ghost site for a while
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Old 12-23-2018, 10:00 AM
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That is what we did, we had to remove the refrigerant first, before disconnecting the AC lines, then moving the AC compressor forward to gain some room. Also drain the radiator and expansion tank, to make more room.
These O-rings are in a difficult location, we had to loosen the mounting bracket for the oil lines running to the oil cooler. We access some things from the bottom of the car using a lift, and others from the top with the car resting on the ground.
It took about two hours total after receiving the parts from the dealership. I bought two of the last three O-rings they had. Once these O-rings were removed, they felt hard and were brittle after 11yrs.
And I'm glad that we fixed this, because I could have been on a long road trip and had this happened then, it could have been worse. But we caught it in time, with very minimal oil lose.
Plus we discovered the broken neck on the coolant expansion tank, luckily it didn't leak, but if you move it around, you could tell it was broken.
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Old 12-24-2018, 08:46 AM
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Thank you for the reply so quickly,
The AC pump is the only failure I have ever had on this car, changed it myself in the driveway 2 years ago, these fine cars have minimal room anywhere ha ha
Was thinking maybe possible to deknuckle my hands this winter as I do not like the old girl to be leaking.
Everytime the car is driven it puts a smile back on my face.
The Wavetrac LSD install by myself was for sure the best money ever spent and the response on the car was amazing and makes the car like a feral car in hot pursuit

Keep smiling and have a Merry Christmas and a safe New Year
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