BMW X3 Service & Repair Manual: Removing and installing alternator (N52T)

IMPORTANT: Aluminum-magnesium materials.

No steel screws/bolts may be used due to the threat of electrochemical corrosion.

A magnesium crankcase requires aluminum screws/bolts exclusively.

Aluminum screws/bolts must be replaced each time they are released .

Aluminum screws/bolts are permitted with and without color coding (blue).

For reliable identification: Aluminum screws/bolts are not magnetic .

Jointing torque and angle of rotation must be observed without fail (risk of damage) .

Necessary preliminary work:

• Switch off ignition.
• Disconnect BATTERY EARTH LEAD .
• Remove INTAKE SILENCER HOUSING .
• Remove ALTERNATOR DRIVE BELT .

Release connector (1) and remove.

Slacken nut (2).

Installation note:

Disconnect positive battery cable from alternator.

Release screws (3) and remove alternator.

Installation note:

Replace aluminum screws.

Assemble engine.