BMW M3 Forum (E90 E92) - View Single Post

WalkerM3 · 04-23-2018, 04:02 PM

Try the over flow coolant hose- tube. I had it happen to my M3. The o-ring on the thermostat side worn out. Easy no mess just unhook both sides and it's fixed. Replace with coolant overflow hose- tube assembly, it's hard plastic.

04-23-2018, 04:02 PM	#5
WalkerM3 Private 5 Rep 55 Posts Drives: E90 M3 AW FR Join Date: Sep 2008 Location: Calgary,Alberta iTrader: (0) Garage List 2008 BMW M3 [8.25]	Try the over flow coolant hose- tube. I had it happen to my M3. The o-ring on the thermostat side worn out. Easy no mess just unhook both sides and it's fixed. Replace with coolant overflow hose- tube assembly, it's hard plastic.
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