12 31 020 Removing and installing or replacing alternator (N16, N18)

Necessary preliminary tasks:

N18 only:

Release screw.

Remove holder (1) and place to one side.

Fig 1: Identifying Holder And Screw

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Release connector and remove.

Release nut (1) and remove positive battery cable.

Tightening torque 12 31 2AZ .

Loosen screws (2) and remove the belt tensioner (3).

Tightening torque: 20 Nm.

Fig 2: Removing/Installing Tensioning Device

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Release screw (1).

Tightening torque 12 31 1AZ .

Remove alternator (2) downwards.

Fig 3: Identifying Alternator And Screw

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Reassemble the vehicle.