Removing the DME control unit
WARNING:
High-voltage system.
The high-voltage system operates on the basis of hazardous, electrical voltage and high currents. Mortal hazard through electric shock!
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.
Preliminary work
- Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
- Refer to REMOVING THE ACOUSTIC 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 (ELECTROSTATIC DISCHARGE) PROTECTION .
NOTE:
TECHNICAL INFORMATION
Follow instructions for removing and installing control units.
For additional information see: INSTRUCTIONS FOR REMOVAL AND REPLACEMENT OF CONTROL UNITS .
Follow instructions for removing and installing control units.
For additional information see: INSTRUCTIONS FOR REMOVAL AND REPLACEMENT OF CONTROL UNITS .
NOTE:
TECHNICAL INFORMATION
In a warranty case, you must always provide a fault memory printout with the defective part, even if the fault memory does not contain an entry.
In a warranty case, you must always provide a fault memory printout with the defective part, even if the fault memory does not contain an entry.
NOTE:
TECHNICAL INFORMATION
Control unit must be programed after it is replaced.
For additional information see: ENCODING/PROGRAMING CONTROL UNIT(S) .
Control unit must be programed after it is replaced.
For additional information see: ENCODING/PROGRAMING CONTROL UNIT(S) .
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 loosen clamp (1) .
- Guide and remove cover (2)
in direction of arrow.
- Unlock and disconnect the plug connections (1)
in the arrow direction.
- Unlock the locks (1) .
- Guide out and remove DME control unit (2) .