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Home >> BMW >> 2012 >> X1 >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Engine Electrical System - Repair >> Starter And Alternator Cables >> 12 42 500 Replacing positive battery cable between starter motor, alternator and positive battery connection point (N54 N54T N55)

12 42 500 Replacing positive battery cable between starter motor, alternator and positive battery connection point (N54 N54T N55)

Necessary preliminary tasks: 

Remove protective cap (not shown).

Release screw, remove positive battery cable (1) from battery positive terminal.

Tightening torque 12 42 3AZ .

Fig 1: Locating Battery Positive Cable
G04751340Courtesy of BMW OF NORTH AMERICA, INC.

Remove protective cap and release nut underneath.

Tightening torque 12 42 1AZ .

Disconnect positive battery cable (1) from alternator.

Fig 2: Locating Protective Cap And Positive Battery Cable
G04755154Courtesy of BMW OF NORTH AMERICA, INC.

Unlock connector (1) and remove.

Unfasten nut.

Tightening torque 12 42 2AZ .

Disconnect positive battery cable (2) from starter motor.

Fig 3: Identifying Positive Battery Cable And Connector With Nut
G04755155Courtesy of BMW OF NORTH AMERICA, INC.

Unclip positive battery cable (1) from holder (2) and remove.

Fig 4: Identifying Positive Battery Cable And Holder
G04755156Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Check stored fault messages.

Delete fault memory.