"B38, B46 and B48 Engines: Drivability Complaints with Crankshaft Sensor Fault

Bulletin number

M120415

Component

Electrical system

Summary

"B38, B46 and B48 Engines: Drivability Complaints with Crankshaft Sensor Fault. The vehicle exhibits one of the following complaints: ? Loss of power when idling ? At a higher engine speed (above 3,000 rpm), a brief decrease in the engine speed can be felt. ? Extended cranking before the engine will start ? The customer notices an increased level of ""free play"" in the clutch pedal when changing gears. ? The clutch pedal remains depressed and will not return to the disengaged position. ? Emergency operation is active with one or more of the faults listed below. Faults stored in the vehicle: ? 160020 Crankshaft sensor, signal: implausible ? 180001 Catalytic converter: efficiency too low ? 200D0C Powertrain, safety function: bus signal rpm reduction implausible ? 11A002 Fuel high pressure, plausibility: Pressure too low ? 1F054D Powertrain, safety function: powertrain reduced power, DSC-signal implausible? 120408 Boost pressure control: Shut-down as a consecutive reaction"

Owners of these vehicles have filed 23 complaints in the electrical category.