Replacing Positive Lead - Starter to Alternator

Removing And Installing/Replacing Battery Positive Lead (Between Starter Motor And Alternator) (M54)

Necessary preliminary tasks:
- Read out fault memory of DME control unit.
- Switch off ignition.
- Disconnect negative battery lead.
Observe instructions for disconnecting and connecting battery.
- Remove suction filter housing.







Release nut and disconnect battery positive lead (2) from alternator.
Tightening torque.
1AZ Wires to alternator
Terminal D+
M6 7 Nm
Terminal B+
M8 13 Nm







Unscrew nut (1).
Tightening torque.
4AZ Electrical leads to starter
M5 5 Nm
M6 7 Nm
M8 13 Nm
Detach battery positive lead (2) from starter motor and remove.

NOTE:
For a better overview, this work step is shown from below.
Carry out removal of battery positive lead from above.

NOTE:
Interrogate fault memory of DME control unit.
Check stored fault messages.
Rectify faults.
Then clear fault memory.