Thread: E90 330D - Auxiliary Water Pump Not Working
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      08-31-2019, 02:26 AM   #3
Tambohamilton
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Drives: E91 330d
Join Date: Apr 2019
Location: Herefordshire

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Chances are that the brushes are worn out on the motor. Can be diy replaced, or new pump time. Test it by wiring it directly to the battery.
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