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July 1, 2019 Service bulletin

Diagnostic hint: catalytic converter inspection after loss of crankshaft signal.

BMW technical service bulletin B122319 for 2014-2017 BMW X5, 2012-2016 BMW 328I and 2011-2017 BMW X3 and others.

Bulletin number
B122319
Component
Engine and engine cooling: exhaust system: emission control: catalytic convertor
Summary
DIAGNOSTIC HINT: CATALYTIC CONVERTER INSPECTION AFTER LOSS OF CRANKSHAFT SIGNAL. In certain situations when the crankshaft position signal is lost while driving the malfunction indicator lamp (MIL) and an engine malfunction check control message (CCM #29) may be displayed. The engine may run roughly or with reduced power.

Owners of these vehicles have filed 1,852 complaints in the engine category.

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