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

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Necessary preliminary tasks: 

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.

Fig 1: Place Holder (1) For Refrigerant Line (2) To One Side
G00497004Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 2: Remove Cover (1) And Release Screw Underneath
G00497005Courtesy of BMW OF NORTH AMERICA, INC.

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
G00497006Courtesy of BMW OF NORTH AMERICA, INC.

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
G00497007Courtesy of BMW OF NORTH AMERICA, INC.