Removing the engine wiring harness for sensor system
WARNING:
Working on 12 V electrical system. 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.
NOTE:
RISK OF DAMAGE
Damage to battery terminal, the safety battery terminal or the intelligent battery sensor (IBS) .
Damaged battery terminals can lead to malfunctions or vehicle electrical system faults .
Damage to battery terminal, the safety battery terminal or the intelligent battery sensor (IBS) .
Damaged battery terminals can lead to malfunctions or vehicle electrical system faults .
- Detach battery terminal from battery pole by carefully shifting to and fro. Do not pry off using a tool.
Preliminary work
- Refer to REMOVING THE SEAL FOR THE HOOD REAR .
- Refer to REMOVING THE COVER OF THE ENGINE COMPARTMENT AT THE REAR LEFT .
- Refer to REMOVING THE COVER OF THE REAR RIGHT ENGINE COMPARTMENT .
- Refer to DISCONNECTING THE NEGATIVE BATTERY CABLE OF THE SYSTEM BATTERY .
- Refer to REMOVING LEFT AND RIGHT WIPER ARM .
- Refer to REMOVING THE COWL COVER .
- Refer to REMOVING STAND FOR THE HOOD GASKET LEFT AND RIGHT .
- Refer to REMOVING TRAILING LINK AT SPRING BOLT .
- Refer to REMOVING THE BULKHEAD UPPER PART .
- Refer to REMOVING THE SECOND BULKHEAD AT THE BOTTOM .
- Refer to REMOVING SUSPENSION STRUT BRACE .
- Refer to REMOVING INTAKE SILENCER HOUSING .
- Refer to REMOVING THE COVER PANEL OF THE DME CONTROL UNIT .
- Refer to REMOVING THE TOP RIGHT AND LEFT COVER IN THE ENGINE COMPARTMENT .
- Refer to REMOVING FRONT CROSS CONNECTION .
- Refer to REMOVING THE LEFT AND RIGHT FRONT-END STRUT .
- Refer to REMOVING CLEAN AIR PIPE CYLINDER 1-3 .
- Refer to REMOVING THE LEFT-HAND AIR DUCT .
- Refer to REMOVING FAN COWL .
- Refer to REMOVING THE CHARGE AIR DUCT FOR CYLINDERS 1-3 .
Engine wiring harness for sensor system 2
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 ELECTROSTATIC DISCHARGE (ESD) 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
Follow instructions for removing and installing control units.
For additional information see: 12 00... NOTES ON REMOVAL AND INSTALLATION OF CONTROL UNITS .
Follow instructions for removing and installing control units.
For additional information see: 12 00... NOTES ON REMOVAL AND INSTALLATION OF CONTROL UNITS .
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 the plug connection (1) from the control valve (2) for the piston cooling.
- Unlock plug connection (1) and disconnect.
- Unlock plug connections (1) and disconnect.
- Unlock plug connections (2) and disconnect.
- Unlock plug connections (1) and disconnect.
- Unlock plug connection (1) and disconnect.
- Unlock connector (2) and disconnect it from the control unit bracket (3).
- Unlock connector (1) and disconnect it from the control unit bracket (2).
- Unlock the lock (arrow).
- Disconnect the cable holder (1) upwards from the control unit holder (2).
- Unlock the locks (arrows).
- Feed out the engine wiring harness (1) for the sensor system 2 and set it aside.
- Unlock plug connection (1) and disconnect.
- Loosen the clamp (arrow).
- Unlock plug connection (1) and disconnect.
- Release the clamps (arrows).
- Unlock and disconnect plug connections (1).
- Release the clamps (arrows).
- Feed out the engine wiring harness (2) for the sensor system 2 and set it aside.
- Unlock and disconnect plug connections (1).
- Release the clamps (arrows).
- Loosen screws (1).
- Guide out cable holder (2) and set aside.
- Unlock and disconnect plug connections (1).
- Release the clamps (arrows).
- Unlock plug connection (1) and disconnect.
- Unlock and release the lock (1) with the screwdriver (2).
- Guide the connector (3) in the arrow direction out of the carrier plate and set it to the side.
- Unlock the locks (arrows).
- Feed the connector (1) out of the carrier plate and place it to one side.
- Unlock plug connection (1) and disconnect.
- Unlock plug connections (1) and disconnect.
- Unlock the locks (arrows).
- Feed out the engine wiring harness (2) for the sensor system 2 and set it aside.
- Unlock plug connections (1) and disconnect.
- Loosen the clamp (arrow).
- Unlock plug connection (1) and disconnect.
- Loosen nut (2).
- Pull out and remove the retainer (3).
- Feed out auxiliary coolant pump (4) and set aside.
- Unlock plug connection (1) and disconnect.
- Loosen the tank vent line with pressure sensor (2) from the holders (arrows) and set aside.
- Unlock and disconnect the plug connections (1) and (2).
- Loosen screw (3).
- Unlock the locks (4).
- Feed out the engine wiring harness (5) for the sensor system 2 and set it aside.
- Feed out and remove the engine wiring harness (1) for the sensor system 2.