LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 2012 >> 320i Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Engine Electrical System - Repair - F30 >> Starter Lead >> 12 42 500 Replacing the battery positive lead between the starter and battery positive connection point (N55 hybrid)

12 42 500 Replacing the battery positive lead between the starter and battery positive connection point (N55 hybrid)

WARNING: High-voltage system - danger to life! 
The following points must be strictly observed prior to starting work  :

Necessary preliminary tasks: 

Pull off rubber mount (1) and slightly raise service cover (2) until lock of cover (3) is accessible.

Unlock lock and remove cover (3).

Fig 1: Locating Cover Lock
G10099969Courtesy of BMW OF NORTH AMERICA, INC.

Slacken nut (1).

Tightening torque: 12 42 3AZ .

Remove positive battery cable from battery positive terminal.

Fig 2: Identifying Nut And Positive Battery Cable
G10099970Courtesy of BMW OF NORTH AMERICA, INC.

Release positive battery cable from clamp (1).

Fig 3: Identifying Clamp
G10102285Courtesy of BMW OF NORTH AMERICA, INC.

Release rear cable strap (1) on cylinder head cover.

Replace cable straps.

NOTE: Graphic shows engine removed.
Fig 4: Identifying Rear Cable Strap On Cylinder Head Cover
G10102286Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) on starter motor.

Tightening torque: 12 42 2AZ .

Remove positive battery cable from starter motor and pull out.

Fig 5: Identifying Starter Motor Nut
G09914284Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Reassemble the vehicle.
Check stored fault messages.
Delete fault memory.