Thread: 335 went nuts
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      11-14-2012, 02:17 PM   #15
ajm8127
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Drives: '07 335i
Join Date: Aug 2012
Location: Pittsburgh

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Open the cap to the coolant reservoir and run the water pump bleed procedure by turning your ignition on, but not starting the car, turning the heat to 84, and holding the gas pedal for like ten seconds. You should see water squirting through a small hole in the neck of the reservoir where the small tube comes in. You should also here your water pump cycling.

If you don't see the water moving, and hear the pump, then I would replace the pump.