Uploaded September 2020 | Updated September 2026, 2 days ago

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This DIY demonstrates how to replace the alternator on a BMW E36 M3. This job is relatively simple and should be able to be completed within a few hours. The car used in this video is a 1997 BMW M3 Coupe, 5-speed.

PARTS:
(1) Alternator, 140 amp: 12311744567
(1) Alternator pulley: 12311432988
(1) Alternator pulley pass-through socket: 83300491167
(1) Alternator bolt, upper: 07119904677
(1) Alternator bolt, lower: 07119904533
(1) Accessory belt: 11287636378
(1) AC compressor belt: 11281437449
(2) Tensioner pulley: 11281726343
(2) Tensioner pulley dust cover: 11281727159
(1) Idler pulley: 11281748130
(1) Idler pulley dust cover: 11281730349
(2) Pulley protection rings: 11281730532
(1) Accessory belt tensioner pulley screw: 07129905534
(1) AC compressor belt tensioner pulley screw: 07119901979

BMW PARTS: bit.ly/2MPZSB3

DISCLOSURE: This post may contain affiliate links, meaning when you click the links and make a purchase, we receive a commission.

TORQUES:
Alternator to engine: 31lb/ft
Alternator pulley to alternator: 55lb/ft
Pulleys to engine: 33lb/ft
B+ alternator connection: 10lb/ft
D+ alternator connection: 5lb/ft

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