Installing knock sensor of cylinders 1 to 3
WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.
- Clean the contact surface of the knock sensor at the crankcase.
- Insert and install the knock sensor (3) .
- Tighten down screw (2) .
TIGHTENING TORQUE SPECIFICATIONS
| Knock sensor to crankcase | ||
|---|---|---|
| M8x30 | Tightening torque | 21.5 Nm |
- Connect connectors (1) and lock.
The connector (1) must engage audibly.
Follow-up work
- Refer to INSTALLING ALTERNATOR .
- Refer to INSTALLING FAN COWL .
- Refer to CONNECTING THE COOLANT LINE TO THE RADIATOR .
- Refer to INSTALLING THE RIGHT INTAKE FILTER HOUSING (FRONT-END STRUT REMOVED) .
- Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
- Refer to INSTALLING UPPER CROSS CONNECTION .
- Refer to INSTALLING THE CENTER ENGINE COMPARTMENT COVER .
- Refer to INSTALLING THE FRONT HOOD SEAL .
- Refer to INSTALLING THE CLEAN AIR PIPE FOR CYLINDERS 1 TO 3 .
- Refer to INSTALLING THE FRONT-END STRUT .
- Refer to CONNECTING ALL BATTERY GROUND LEADS .
- Refer to FILLING AND VENTING THE HIGH-TEMPERATURE COOLANT CIRCUIT .
- Refer to INSTALLING THE BOTTOM FRONT RIGHT SIDE COVER .
- Refer to INSTALLING THE STIFFENING PLATE .
- Refer to INSTALLING THE LEFT AND RIGHT FRONT UNDERSHIELD .
- Refer to INSTALLING FRONT UNDERBODY PROTECTION .
- Refer to INSTALLING THE FRONT SPOILER .