12 31 020 Removing and installing or replacing alternator (N54)
WARNING: This page is about a different variant/trim than selected.
Necessary preliminary tasks:
- Switch off ignition.
- Disconnect BATTERY EARTH LEAD and cover.
- Remove INTAKE SILENCER HOUSING .
- Release CHARGE-AIR DUCT at front, do not remove.
- Remove DRIVE BELT for alternator.
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 A/C compressor.
- Do not remove A/C compressor; instead, remove from bracket only and place to one side.
Remove A/C COMPRESSOR FROM BRACKET .
NOTE:
For purposes of improved clarity, illustrations and description show A/C compressor removed.
Release bolts a few turns until bracket (1) is loose. Do not remove bracket (1).
Tightening torque 64 52 3AZ .
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 .
Remove alternator.
Assemble engine.