Removing the bracket for the DME control unit
NOTE:
DANGER
High-voltage system .
The high-voltage system operates on the basis of hazardous, electrical voltage and high currents. Mortal hazard through electric shock!
High-voltage system .
The high-voltage system operates on the basis of hazardous, electrical voltage and high currents. Mortal hazard through electric shock!
- All work on the high-voltage system may only be carried out by specially trained and technically experienced personnel.
- For additional information see:
- For additional information see:
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.
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 DISCONNECTING ALL BATTERY GROUND LEADS .
- Refer to REMOVING TRAILING LINK AT SPRING BOLT .
- Refer to REMOVING THE ENGINE CONTROL UNIT COVER .
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: NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE) .
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
Disconnecting control units may cause fault code entries and functional limitations. Fault code entries must be read out and deleted if necessary.
Disconnecting control units may cause fault code entries and functional limitations. Fault code entries must be read out and deleted if necessary.
- Unlock and disconnect plug connections (1).
- Unlock and disconnect plug connections (1).
- Unlock plug connection (1) and disconnect.
- Release the cable clip (arrow).
- Unlock plug connection (1) and disconnect.
- Unlock connector (2) and disconnect it from holder (3).
- Release the cable bracket (1) from the bracket (2).
- Unlock the locks (1).
- Guide out and remove DME control unit (2).
- Unlock lock (1).
- Slide out and remove the integrated power supply module (PDM) (2).
- Loosen screw (1).
- Feed out and remove the bracket (2) for the DME control unit.
- Rotate the bracket for the DME control unit.
- Unlock the connector (1) from below and disconnect it.
- Loosen the cable clip (2).
- Feed out and remove the bracket for the DME control unit.