Install alternator
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.
- Slightly push back the threaded support bushing (2) in the arrow direction to facilitate the installation of the alternator.
- Screw the screw (1) into the threaded support bushing (2) .
- Push back the threaded support bushing (2) using screw (1) .
- Once again unscrew the screw (1)
from the threaded support bushing (2)
.
- Feed in and install the alternator (1) .
- Tighten the screws (2) .
TIGHTENING TORQUE SPECIFICATIONS
| Alternator on component carrier | ||
|---|---|---|
| M10x75 | tightening torque | 38 Nm |
| M10x125 | tightening torque | 38 Nm |
| M10x90 | tightening torque | 38 Nm |
- Fasten the clamp (arrow) to the alternator (4) .
- Feed in and position the positive battery cable (3) .
- Tighten nut (2) .
TIGHTENING TORQUE SPECIFICATIONS
| Positive battery cable to the alternator | ||
|---|---|---|
| M8 | Tightening torque | 19 Nm |
- Connect connectors (1)
and lock.
The connector (1) must engage audibly.
- Put drive belt (1)
onto the belt pulley (2)
of the alternator.
- Check the drive belt for the alternator (1)
for the correct fit.
- Raise the preload with standard tools (1) on the belt tensioner in the arrow direction .
- Feed out the special tool 0 496 268 (11 0 390) from the belt tensioner and remove.
Follow-up work
- 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 .
- Refer to WHEN REPLACING THE ALTERNATOR/ALTERNATOR REGULATOR: RESET GENERATOR STATISTICAL DATA .