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Home >> BMW >> 2021 >> M240i 2D Convertible, Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Engine Electrical System -- Repair (F22 & F23) >> 12 14 Engine Control Module, Sensors >> 12 14 521 Replacing crankshaft pulse sensor (230i and 230i xDrive coupe/convertible)

12 14 521 Replacing crankshaft pulse sensor (230i and 230i xDrive coupe/convertible)

CAUTION: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Necessary preliminary work: 

Removal: 

Loosen the screws along the arrows.

Remove connecting rod (1).

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Unlock and release fuel line (1).

Unlock and release clamp (2).

Unscrew nut (3).

Remove guard plate (4).

G12712980Courtesy of BMW OF NORTH AMERICA, INC.

Unlock connector (1) and remove.

Release screw (2).

Remove pulse generator (3).

G12701468Courtesy of BMW OF NORTH AMERICA, INC.

Preparation for installation: 

Installation: 

Insert pulse sensor (3) and install.

Tighten screw (2).

Tightening torque 13 62 2AZ .

Attach connector (1) on pulse sensor.

Connector (1) must engage audibly.

G12701468Courtesy of BMW OF NORTH AMERICA, INC.

Install protective plate (4).

Tighten nut (4).

Connect and lock fuel line (1).

Connect clamp (2) and lock.

Clamp (2) must audibly snap into place.

G12712980Courtesy of BMW OF NORTH AMERICA, INC.

Install connecting rod (1).

Tighten screws along arrows.

Tightening torque 12 41 2AZ .

G12701466Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: