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Old 04-20-2009, 05:49 PM   #2
Join Date: Mar 2007
Location: CO
Posts: 1,956
My Ride: Pre-facelift Coupe
The Bentley manual describes draining the coolant first.

It also explains that the wires inside the thermostat are actually heaters. They go on to explain their purpose and function.

Good reading to do before undertaking this repair.

Not sure I would have applied the orange goo...


Last edited by bmwbun; 04-20-2009 at 05:52 PM.
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