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      05-15-2018, 10:14 AM   #115
M3MPH1S
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Drives: 2010 E92 M3
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Quote:
Originally Posted by exclusivedetails View Post
If I am only replacing the coolant sensor, do I still need to drain or siphon out the coolant?
You might spill a very very small amount, but that's not going to affect anything. I wouldn't bother even siphoning.
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