Alternator: Service and Repair

12 31 020 Removing And Installing Or Replacing Alternator (N54)







Necessary preliminary tasks:
- Turn off ignition
- Disconnect battery negative lead and cover
- Remove intake filter housing
- Release charge-air duct at front, do not remove
- Remove alternator drive belt







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 plug (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.