12 42 550 Replacing Battery Positive Lead Between Starter, Alternator and Battery Positive Terminal

12 42 550 Replacing Positive Battery Cable Lead Between Starter Motor, Alternator And Positive Battery Connection Point (N74)

Necessary preliminary work:
- Read out the fault memory of the DME control unit.
- Switch off ignition.
- Disconnect battery earth lead
- Remove catalytic converter cylinder 1-6 and cylinder 5-8.
- Remove intake plenum.
- Remove front bulkhead sound insulation.
- Remove intake port on left and right

Fold back cover (1).
Release nut underneath. Remove positive battery cable lead (2) from positive battery connection point.
Tightening torque 12 42 3AZ.

Unclip the positive battery cable (1) above the gearbox from the clamps (2).

Feed out the vacuum hose (1) and remove.

Release positive battery cable from clamps (1) and expose.

Remove the cover (3) and undo the nuts underneath.
Tightening torque 12 42 1AZ.
Disconnect positive battery cable from alternator and feed out.

Release screws (1).
Tightening torque 12 41 2AZ.
Remove heat shield (2).

Slacken nut (1).
Tightening torque 12 42 2AZ.
Undo positive battery cable from starter motor and remove.

NOTE:
Reassemble the vehicle.
Check stored fault message.
Delete fault memory.