12 31 020 Removing and installing or replacing the alternator (N63 B40/B44 O 1) (X6 xDrive 50i)

Necessary preliminary tasks: 

• Switch off ignition.
• Disconnect BATTERY NEGATIVE LEAD .
• Remove ACOUSTIC COVER .
• Remove left and right CHARGE AIR HOSE .
• Remove clean air pipe on left and right. Refer to 13 71 195 REMOVING RIGHT CLEAN AIR PIPE (N63 B40/B44 O 1) REP-REP-RAF1513N63O1-1371195 - V.5 (X6 XDRIVE 50I) and 13 71 190 REMOVING LEFT CLEAN AIR PIPE (N63) REP-REP-RAF1513N63O1-1371190 - V.5 (X6 XDRIVE 50I) .
• Release DRIVE BELT for alternator from alternator.

Unlock and pull off connector (1) from alternator.

Release nut at bottom of cover (2).

Tightening torque 12 41 1AZ .

Remove positive battery cable from alternator and place to one side.

Installation note: 

Reinstall cover (2) without fail risk of short circuiting! 

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Release screws (1) from exhaust turbocharger cooler pump (2).

Place the turbocharger coolant pump to the side. Do not remove the turbocharger coolant pump!

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Release connector from holder (2).

Release screws (1).

Tightening torque 12 31 1AZ .

Feed out holder for turbocharger coolant pump (2) and remove.

Remove alternator.

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