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Home >> BMW >> 2018 >> 340i xDrive Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 256 (Engine Electrical System - Repair (F30, 4-CYL RWD)) >> 12 14 Electronic Switching Or Control Units >> 12 14 521 Replacing crankshaft pulse sensor (B48)

12 14 521 Replacing crankshaft pulse sensor (B48)

WARNING: This page is about a different car, the 2018 BMW 330i and 2017 BMW 330i. However, it is still accessible from the selected car via links, so may be relevant.

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).

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Unlock connector (1) and remove.

Release screw (2).

Remove pulse generator (3).

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Preparation for installation: 

Installation: 

Insert pulse sensor (3) and install.

Tighten screw (2).

Tightening torque, refer to: 13 62 2AZ .

Attach connector (1) on pulse sensor.

Connector (1) must engage audibly.

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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.

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Install connecting rod (1).

Tighten screws along arrows.

Tightening torque, refer to: 12 41 2AZ

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Required follow-up work: