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Old 01-05-2013, 04:02 AM
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645/333 645/333 is offline
Location: uk
Join Date: Jun 2010
Posts: 1,621
Mein Auto: BMW 640i SE Convertible
Hi! The dreaded coolant leak is actually the pipe that runs inside the engine front to back, above the cylinder block, where the rubber seals fail and it weeps out of the front of the engine, there is a tiny hole it comes out of!
Any other coolant leak is pretty standard, as it is the above leak that costs the major $'s. BMW split the engine whilst others are using the engineered kit from various suppliers.
The only good news in a sense is that to repair this you will naturally change all of the seals/gaskets etc to get to the part!!!!!!

Always said I would go back to a 6 series

Last edited by 645/333; 01-05-2013 at 04:05 AM.
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