Oil leak: Dealer says it's the oil cooler seal??????
 

Not sure I have the correct term but thats pretty much what they said was leaking. Anyone know where this is located/diagram ?

Dealer is charging me 850$ ( parts 11$ + 5 hr labor). Does this sound fair?

Not sure which one of the X's you refer to, but here's the oil cooler. In front and below the radiator. The pipes have an O-ring where they fit in the cooler - diagram. Maybe these are bust.

It's for the e53 (4.8).
Thanks for the diagram. 5hr labor time??? Wow that doesn't sound right.

Hello , hope this helps. On that V8 engine on the L/S of the engine where the oil cooler supply and return lines connect. There is a plate which also holds the mount for the alternator. There is a gasket between the engine block and 2 "o" rings for the lines. The gasket between the engine block and mounting plate is a common spot for leakage. To see the gasket in question check on real oem and go to group 12 for engine electrical then click on alternator mounting. It will show the gasket that needs replacement. Its a fairly involved job thus the high labor low parts price. Good luck. Jeff

So it's part # 2 (p/n 12317507808) in the diagram below. Realoem list the part 1.48$, but not cheap to replace......

http://realoem.com/bmw/diagrams/r/h/207.png

Yes , there are also 2 o rings for the lines and 2 o rings on a thermostat assembly attached to that plate.

Thx for the info guys. Wanted to make sure the Dealer wasn't ripping me off too much....

You are welcome , good luck.

BTW, I just noticed.....welcome to the forum Daspud :thumbup:

Mine is also leaking there and I need to replace the entire plate. My case is a silly goose one- while replacing the alternator, I broke the bolt hole where #7 points to. The other alternator bolts hold the alternator fine but now that the leak started, it's an opportunity for me to replace the plate. Planning to do this project during the summer.