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Home >> BMW >> 2012 >> 335i 2D Convertible, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Self Diagnosis - N55 - Diagnostic Trouble Codes - DTC P0617 (BMW DTC 1F1B40) Through DTC U1128 (BMW DTC CDC304) >> DTC U1170; BMW DTC 20AA04: Coolant pump, communication: malfunction >> Fault effect and breakdown warning

Fault effect and breakdown warning

Breakdown notice:

None

Possible apparent symptoms:

Breakdown in extreme cases, electric water pump stops operating - engine overheats

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