Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
12 14 521 Replacing crankshaft pulse sensor (N55 hybrid)
The following points must be strictly observed prior to starting work :
- Observe SAFETY INFORMATION for handling hybrid cars
Necessary preliminary tasks:
- Read out the fault memory of the DME control unit.
- Switch off ignition.
- Remove STARTER MOTOR .
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.
Installation note:
During installation of pulse sensor make sure that guide pin (1) of pulse sensor is inserted in guiding groove (2) of crankcase.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.