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

Necessary preliminary tasks: 

• Switch off ignition
• Disconnect battery negative lead. See 12 00... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .
• Remove fan cowl with electric fan.
• Remove alternator drive belt.

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.

Fig 1: Place Holder (1) For Refrigerant Line (2) To One Side

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

Fig 2: Remove Cover (1) And Release Screw Underneath

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Release screws. Tightening torque, see 12 31 1AZ in 12 31 ALTERNATOR WITH DRIVE AND MOUNTING PARTS . Pull alternator (1) forwards until connections are accessible.

Fig 3: Pull Alternator (1) Forwards Until Connections Are Accessible

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Unlock plug (1) and remove. Remove cover (2) and release nut underneath. Tightening torque, see 12 42 1AZ in 12 42 STARTER LINE . Disconnect battery positive lead from alternator. Remove alternator.

Fig 4: Unlock Plug (1) And Remove

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