12 31 020 Removing And Installing/Replacing Alternator (Air-Cooled) (N62, N62TU)

WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Switch off ignition
Follow instructions for disconnecting and connecting battery . See 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .
Disconnect battery negative lead and cover
Remove left air filter housing
Remove alternator drive belt . See 11 28 010 REPLACING ALTERNATOR DRIVE BELT (N62/N62TU)

IMPORTANT: Risk of damage!
Cover radiator.

Remove cover (1) and release screw underneath.

Remove deflecting element (2).

Fig 1: Identifying Cover And Deflecting Element

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Unfasten screws.

Pull alternator (1) forwards until connections are accessible.

Fig 2: Identifying Alternator

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Unlock plug (1) and remove.

Remove cover (2) and release nut underneath.

Disconnect battery positive lead from alternator.

Fig 3: Identifying Plug And Cover

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