Alternator: Service and Repair

12 31 020 - Removing and installing or replacing alternator (N62)





Necessary preliminary tasks:
- Switch off ignition
- Disconnect battery negative lead 61 20 900 Disconnecting and Connecting Battery Negative Lead
- Remove fan cowl with electric fan Service and Repair
- Remove alternator drive belt Replacing Alternator Drive Belt





Important!
Risk of damage
Cover radiator.





If fitted:
Unscrew nuts. Place holder (1) for refrigerant line (2) to one side.
Release screw. Place holder (3) for hydraulic line (4) to one side.





Remove cover (1) and release screw underneath.
Remove deflecting element (2).





Release screws.
Tightening torque 12 31 1AZ 12 31 Alternator with Drive and Mounting Parts.
Pull alternator (1) forwards until connections are accessible.





Unlock plug (1) and remove.
Remove cover (2) and release nut underneath.
Tightening torque 12 42 1AZ 12 42 Starter Cable.
Disconnect battery positive lead from alternator.
Remove alternator.