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March 1, 2013 Service bulletin

N55 Engine Failsafe

BMW technical service bulletin 121611 for 2007-2013 BMW X5, 2007-2014 BMW 328I and 2011-2014 BMW X3 and others.

Bulletin number
121611
Component
Power train
Summary
N55 Engine Failsafe - FC 120308 Boost Pressure Control, Plausibility: Pressure Too Low Stored in DME Fault Memory. INFORMATION The customer complains the SES is illuminated and the engine has reduced power (engine failsafe mode).

Owners of these vehicles have filed 805 complaints in the transmission category.

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