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Old 05-03-2016, 09:33 AM   #1
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Join Date: Aug 2015
Location: Canada
Posts: 7
My Ride: 2000 328Ci
Odd issue with coolant & heater

Hello, so I have a 2000 328CI
that does this weird thing when while driving, with heat set to, lets say 21.5c, all of a sudden instead of hot air she starts blowing ice cold air (its also cold outside, so might be outside air?) then goes back to hot randomly and the coolant light lights up :|

water pump is brand new, but not the thermostat
coolant level (as per drawing) is perfect
no visible leaks under car or on driveway
no codes

anyone seen this before?
I'm fairly new to bimmers, and never seen this on an audi or a volkswagen aside for when the heatcore is about to go nuts


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