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Home >> BMW >> 2014 >> ActiveHybrid 7 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Engine Electrical System - Repair -- ACTIVEHYBRID 7 >> Electronic Switching Or Control Units >> 12 14 521 Replacing crankshaft pulse sensor (N55 hybrid)

12 14 521 Replacing crankshaft pulse sensor (N55 hybrid)

WARNING: High-voltage system - danger to life! 
The following points must be strictly observed prior to starting work: 
IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Necessary preliminary tasks: 

Unlock connector (1) and remove.

Release screw (2).

Tightening torque 13 62 2AZ .

Remove connector housing from crankcase.

Release screw (3).

Tightening torque 13 62 8AZ .

Pull pulse sensor from crankcase and remove.

Fig 1: Identifying Crankshaft Pulse Sensor Connector And Screws
G11176809Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

During installation of pulse sensor make sure that guide pin (1) of pulse sensor is inserted in guiding groove (2) of crankcase.

Fig 2: Identifying Pulse Sensor Guide Pin And Crankcase Guiding Groove
G11176810Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Assemble engine.

Check stored fault message.

Delete fault memory.