Thread: Coolant leak
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Old 11-19-2011, 08:32 AM
tampamark tampamark is online now
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Location: tampa fl
Join Date: Jan 2009
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Mein Auto: 2006 650 convertible!!!
This is all great info, I am happy that you guys are posting the cause and fix. The simple O ring is the way to go. If the sensor is good and the hose is good I wouldn't replace either since it is simple enough to do if and when they actually fails. The O ring is obviously the weak link in the system. Another BMW engineer fail!

Certainly if I ever have a lower leak this is the first part I would check.
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