Remove the wiring harness section for the ignition and injectors
WARNING:
Working on 12 V electrical system.
Risk of short circuits! Risk of fire!
Risk of short circuits! Risk of fire!
- Make sure that there is no charger connected to the jump start terminal in the engine compartment.
- Detach battery ground lead from battery.
- For auxiliary batteries: Detach battery minus cables from all auxiliary batteries.
Preliminary work
- Refer to DEACTIVATING THE 48 V ELECTRICAL SYSTEM .
- Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
- Refer to REMOVING THE ACOUSTIC COVER .
- Refer to RELEASING THE SERVICE OPENING IN SOUND INSULATION ON TOP OF ENGINE .
- Refer to REMOVING THE COVER PANEL OF THE DME CONTROL UNIT .
Wiring harness for the injectors and ignition coils
NOTE:
RISK OF DAMAGE
Electrostatic discharge.
Damage to or destruction of electrical components.
Electrostatic discharge.
Damage to or destruction of electrical components.
- Leave the electrical components in their original packaging until they are being installed. Only use the original packaging for returning the product. Always package removed components straight away.
- Read and comply with user information on using the associated special tool 12 7 060.
- Only tap the housings of electrical components. Do not tap pins or multi-pin connectors directly.
- Wear electrically conductive clothing and antistatic shoes (with ESD symbol).
- For additional information see: 61 35... NOTES ON ESD (ELECTROSTATIC DISCHARGE) PROTECTION
NOTE:
RISK OF DAMAGE
Damage to wires when disconnecting connectors and plug connections.
Sheared wires can cause a short circuit.
Damage to wires when disconnecting connectors and plug connections.
Sheared wires can cause a short circuit.
- Do not pull on wires when disconnecting connectors and plug connections.
NOTE:
TECHNICAL INFORMATION
If control units are disconnected, fault memory entries and functional limitations may occur.
The fault memory entries must be read out and, if necessary, deleted.
If control units are disconnected, fault memory entries and functional limitations may occur.
The fault memory entries must be read out and, if necessary, deleted.
- Unlock and disconnect plug connections (1).
- Unlock lock (1) in direction of arrow from the top.
- Press lock (1) together and release.
- Unlock and disconnect plug connections (1).
- Loosen nuts (1).
- Remove the wiring harness section (2) and put to one side.
- Loosen clamp (1).
- Unlock and loosen holder (2).
- Remove the wiring harness section (3) and put to one side.
- Unlock the locks (1).
- Remove the wiring harness section (2) and put to one side.
- Unlock and disconnect plug connections (1).
- Feed out and remove the wiring harness section (1) for the injectors and ignition coils.