12 31 022 Removing and installing or replacing starter motor generator (N55 Hybrid)
WARNING:
High-voltage system - danger to life!
The following points must be strictly observed prior to starting work :
The following points must be strictly observed prior to starting work :
- DE -energize the high-voltage system.
- Observe SAFETY INFORMATION for handling hybrid cars.
Necessary preliminary work:
- Switch off ignition.
- Disconnect battery earth lead and cover.
- Disconnect BATTERY EARTH LEAD of auxiliary battery and cover.
- Remove DRIVE BELT for starter motor generator.
- Release ELECTRIC A/C COMPRESSOR and place to one side.
NOTE:
In order to remove the alternator, it is necessary to remove the air-conditioning compressor for the air conditioning system.
In so doing:
- Do not draw off A/C system refrigerant.
- Do not detach refrigerant lines from air conditioning compressor!
- Do not remove air conditioning compressor; instead, remove only from holder and place to one side!
Unlock connector (1) and remove.
Remove protective cap (2) and release nut underneath.
Tightening torque: 12 42 1AZ .
Remove battery positive lead.
Release screws (3).
Tightening torque: 12 31 1AZ .
Tightening torque: 12 31 2AZ .
Release screws (1) a few turns until holder (2) for air conditioning compressor is loose. Do not remove bracket (2).
Tightening torque: 12 31 3AZ .
Feed out and remove starter motor generator.
Assemble engine.