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April 1, 2014 Service bulletin

Repair Corrosion Protection in Engine Compartment

BMW technical service bulletin 510814 for 2012-2013 BMW 328I, 2012-2013 BMW 335I and 2013 BMW 320I and others.

Bulletin number
510814
Component
Electrical system: 12v/24v/48v battery
Summary
Service Action: Repair Corrosion Protection in Engine Compartment. Various engine compartment battery cable mounting points are not sufficiently protected against corrosion. Lack of corrosion protection can lead to improper battery cable connections.

Owners of these vehicles have filed 100 complaints in the electrical category.

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