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7 Series - E65 / E66 (2002 - 2008)
Discussion of BMW's 4th generation E65/E66 7 Series flagship. The E65 generated much controversy, due to its radical styling and iDrive user difficulties. Nonetheless, the E65 broke records to become the best-selling 7-series iteration ever, especially after its 2005 facelift.

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Old 11-15-2011, 02:41 PM
EddieAdams EddieAdams is offline
Registered User
Location: Marlton, NJ, USA
Join Date: Aug 2011
Posts: 97
Mein Auto: Marlton, NJ
Weird coolant leak observation

Looks like coolant is leaking from somewhere on the driver's side of the car. The leaked coolant is finding its way down onto the bottom pan undre the car (near engine oil filter and plug) and evetually leaking to the ground from one of the holes on the pan. I looked from all angles (from under and over the engine) to try to find out where the leak is coming from, but it's impossible without removing many engine parts. I know it's coming from the back of the engine on the driver's side.

Here's the weird part: If I park the car on an incline with the nose up, the leak is quite substantial. It leaks much less on a flat surface. However, if I part the car with the nose down, it doesn't leak one bit!

Any one experienced something like this? Any thoughts? Thanks.
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