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Home >> BMW >> 2017 >> M3 Standard Trans >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Electrical System - Repair (F80) >> 12 14 Engine Control Module And Sensors >> 12 14 521 Replacing crankshaft pulse sensor (S55)
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12 14 521 Replacing crankshaft pulse sensor (S55)

Attention! 

Read and comply with NOTES ON PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) !

Necessary preliminary work: 

Removal: 

Unlock connector (1) and pull off.

Release screw (2).

Remove connector housing from crankcase.

Release screw (3).

Pull pulse sensor from crankcase and remove.

G13690923Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

During installation of pulse sensor make sure that guide pin (4) of pulse sensor is inserted in guiding groove (2) of crankcase.

Tighten screw (3).

Tightening torque: 13 62 8AZ

Tighten screw (2).

Tightening torque: 13 62 2AZ .

Attach and lock connector (1).

Connector (1) must engage audibly.

G13690924Courtesy of BMW OF NORTH AMERICA, INC.

Required reworking: