Remove the electrical machine electronics (EME)
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: 61 00... SAFETY INSTRUCTIONS ON HANDLING HYBRID CARS .
- For additional information see: 61 25... NOTES ON REPAIR OF HIGH-VOLTAGE BATTERY UNIT .
Preliminary work
- Refer to CARRYING OUT INDIVIDUAL DATA RECOVERY .
- Refer to REMOVING THE FLAP IN THE RIGHT-HAND LUGGAGE COMPARTMENT TRIM PANEL .
- Refer to DE-ENERGIZING THE HIGH-VOLTAGE SYSTEM .
- Refer to CHECKING THAT NO VOLTAGE IS APPLIED .
- Refer to DISCONNECTING THE NEGATIVE BATTERY CABLE .
- Refer to DISCONNECTING THE NEGATIVE BATTERY CABLE OF THE VEHICLE BATTERY .
- Refer to REMOVING THE REAR UNDERBODY PANELLING ON THE SIDE .
- Refer to PARTIALLY RELEASING THE UNDERBODY PANELLING LATERALLY .
- Refer to DRAINING THE COOLANT FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
Connection overview for electrical machine electronics (EME)
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: 61 00... SAFETY INSTRUCTIONS ON HANDLING HYBRID CARS .
- For additional information see: 61 25... NOTES ON REPAIR OF HIGH-VOLTAGE BATTERY UNIT .
- Open the holder (1) of the high-voltage cable (2).
- Unclip the high-voltage cable (2) (arrow).
NOTE:
TECHNICAL INFORMATION
Observe the additional information for unlocking and disconnecting various plug connections in electrical and hybrid vehicles!
Observe the additional information for unlocking and disconnecting various plug connections in electrical and hybrid vehicles!
- Unlock and disconnect the plug connection of the high-voltage cable (2).
- Unlock and disconnect the plug connection of the signal line (3).
- Unclip the signal line (3) (arrows).
- Unscrew the nut (4) and remove the battery earth lead from the body.
- Unscrew the nut (1) and remove the potential compensation line from the body.
- Unscrew the bolts (2) and remove holder for the tension relief.
- Unclip the high-voltage cable (3) (arrows).
NOTE:
TECHNICAL INFORMATION
Observe the additional information for unlocking and disconnecting various plug connections in electrical and hybrid vehicles!
Observe the additional information for unlocking and disconnecting various plug connections in electrical and hybrid vehicles!
- Unlock and disconnect the plug connection of the high-voltage cable (3).
- Unscrew the bolts (1) and remove holder for the tension relief.
- Unscrew the bolts (1) and fold the holder for the tension relief up.
- Loosen screws (2).
NOTE:
TECHNICAL INFORMATION
Observe the additional information for unlocking and disconnecting various plug connections in electrical and hybrid vehicles!
Observe the additional information for unlocking and disconnecting various plug connections in electrical and hybrid vehicles!
- Pull the high-voltage connector off straight.
- Open the holder (1) for the coolant lines and detach the coolant lines.
- Unclip holder (1) for the coolant lines (arrows).
- Support the electrical machine electronics (1) with the universal jack, special tool 2 411 683 and the plate mounting (2).
The plate mounting (1) is an element of the mobile lifting table.
- Unclip the positive battery cable (1) from the holder for the electrical machine electronics (EME) (arrows).
CAUTION:
Heavy component.
Heavy components can lead to injury or damage.
Heavy components can lead to injury or damage.
- Remove and install heavy components with the aid of another person/other persons.
- Slacken nut (2).
- Loosen screw (3).
- Loosen nut (4).
- Carefully lower the electrical machine electronics (EME) by approximately 20 cm.
- Pull the cover (1) off and unscrew the nut below it.
- Unclip the positive battery cable (arrow) and pull it off the electrical machine electronics (EME) (2).