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October 1, 2018 Service bulletin

Noise from engine when starting.

BMW technical service bulletin B120918 for 2012-2016 BMW 328I, 2017 BMW 330I and 2012-2016 BMW 335I and others.

Bulletin number
B120918
Component
Engine and engine cooling
Summary
NOISE FROM ENGINE WHEN STARTING. Noise when starting the engine. Engine making a rattling/grinding noise near the 12 volt starter motor. The following fault has been stored in the DME fault memory: 21A511 - Start system, pinion starter motor: Timeout The following faults are also possible: 21A504 - EGS, separation clutch: jammed open 21A50A - Start system, pinion starter: Timeout successively occurred multiple times 21A510 - Start system, EME: Timeout Consequential damage to flywheel (Torsional vibration damper) and automatic transmission may have also occurred. The starter motor is broken. It may be indicated by:

Owners of these vehicles have filed 546 complaints in the engine category.

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