Removing the electrical machine electronics

WARNING: High-voltage system.
The high-voltage system works with dangerous electrical voltage and high currents flow. 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:
- SAFETY INSTRUCTIONS FOR HANDLING ELECTRIC AND HYBRID VEHICLES
- NOTES ON REPAIR OF HIGH-VOLTAGE BATTERY UNIT

WARNING: Car may slip off the vehicle hoist where components are supported.
Danger! Immobilization period-threatening injuries!

Secure the vehicle hoist against lowering and lifting.
Make sure that the vehicle does not lift off the mounting plates on the vehicle lift.

WARNING: Car may slip off the vehicle hoist if the weight is distributed unevenly.
Danger! Immobilization period-threatening injuries!

Ensure specific weight compensation on the vehicle.

WARNING: Hot fluids.
Risk of scalding!

Conduct all work in the vehicle wearing appropriate personal protective equipment only.

CAUTION: Materials harmful to health.
Contact with fluids harmful to health!

Note and follow safety instructions on containers.
Conduct all work in appropriate personal protective equipment only.

NOTE: TECHNICAL INFORMATION
After disconnecting, close the high-voltage connectors with the caps from the 5A4A589 special tool kit.

NOTE: TECHNICAL INFORMATION
Perform wheel alignment after installation.

NOTE: TECHNICAL INFORMATION
Always replace the radial shaft seal in the electric machine transmission after every removal of the driven shaft!

NOTE: TECHNICAL INFORMATION
With the ignition off and the high-voltage safety plug disconnected, the Check Control message "High voltage system faulty" is displayed by default.
The message "High-voltage system switched off" (absence of voltage) is only displayed when the ignition is switched on.

NOTE: TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.

NOTE: TECHNICAL INFORMATION
Refer to NOTES FOR WORKING ON THE COOLING SYSTEM .

Preliminary work

Refer to LIFTING VEHICLE WITH A VEHICLE LIFT .
Refer to REMOVING THE FLAP FROM THE RIGHT LUGGAGE COMPARTMENT TRIM PANEL .
Refer to DE-ENERGIZING THE HIGH-VOLTAGE SYSTEM .
Refer to CHECKING THAT NO VOLTAGE IS APPLIED .
Refer to CHANGING THE ENGINE COOLING SYSTEM TO THE WORKSHOP MODE .
Refer to MOVING THE HOOD TO THE SERVICE POSITION .
Refer to DISCONNECTING THE NEGATIVE BATTERY CABLE OF THE SYSTEM BATTERY .
Refer to REMOVING THE REAR WHEEL ON THE LEFT AND RIGHT .
Refer to RELEASING THE LEFT AND RIGHT OUTPUT SHAFT FROM THE WHEEL BEARING .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
Refer to REMOVING THE LEFT FRONT UNDERSHIELD .
Refer to REMOVING REAR UNDERBODY SHIELD .
Refer to REMOVING THE HOLDER FOR THE REAR UNDERSHIELD .
Refer to REMOVING THE CENTER DIFFUSER .
Refer to REMOVING THE LEFT AND RIGHT DIFFUSERS .
Refer to REMOVING THE COVER OF THE CAMBER CONTROL ARM ON THE LEFT AND RIGHT .
Refer to REMOVING THE LEFT SIDE UNDERSHIELD .
Refer to REMOVING THE UNDERSHIELD ON THE RIGHT SIDE .
Refer to REMOVING REAR UNDERBODY SHIELD .
Refer to REMOVING THE REAR UNDERBODY PROTECTION .
Refer to REMOVING THE LEFT AND RIGHT LONGITUDINAL STRUT .
Refer to DISCONNECTING THE COOLANT LINES FROM THE ELECTRIC DRIVE UNIT .
Refer to REMOVING THE REAR LEFT AND RIGHT BRAKE PADS .
Refer to DISCONNECTING THE CABLES AND LINE CONNECTIONS FROM THE REAR AXLE .
Refer to RELEASING THE WIRING HARNESS OF THE INTEGRAL ACTIVE STEERING (HSR ACTUATOR) .
Refer to RELEASING THE AXLE GUIDE ON THE LEFT AND RIGHT FROM THE WHEEL CARRIER .
Refer to LOOSENING THE ANTI-ROLL BAR LINK ON THE LEFT AND RIGHT FROM THE ANTI-ROLL BAR .
Refer to REMOVING THE WHEEL CARRIER ON THE LEFT AND RIGHT .
Refer to RELEASING THE LEFT AND RIGHT OUTPUT SHAFTS FROM THE ELECTRIC MACHINE TRANSMISSION .
Refer to REMOVING LEFT AND RIGHT OUTPUT SHAFT: .
Refer to REMOVING THE SKID PLATE OF THE ELECTRIC DRIVE UNIT .
Refer to DISCONNECTING THE HIGH-VOLTAGE PLUG CONNECTION .
Refer to DISCONNECTING THE HIGH-VOLTAGE PLUG CONNECTION .
Refer to RELEASING THE CAMBER CONTROL ARM ON THE LEFT AND RIGHT FROM THE SPRING STRUT .
Refer to PREPARING THE MOBILE TABLE LIFT .
Refer to SUPPORT THE REAR AXLE SUPPORT .
Refer to REMOVING THE REAR AXLE SUPPORT .
Refer to REMOVING THE WIRING HARNESS MOUNTING .
Refer to REMOVING THE POTENTIAL EQUALIZATION LINE .
Refer to REMOVING THE TOP SOUND INSULATION .
Refer to PREPARING THE SPECIAL TOOL .
Refer to REMOVING THE ELECTRIC DRIVE UNIT FROM THE REAR AXLE SUPPORT .
Refer to REMOVING REAR SOUND INSULATION .
Refer to FASTENING THE ELECTRIC DRIVE UNIT TO THE ASSEMBLY JIG .
Refer to REMOVING COOLANT LINES .
Refer to EMPTYING THE COOLANT CIRCUIT OF THE ELECTRIC DRIVE UNIT WITH COMPRESSED AIR .
Refer to REMOVING THE LID OF ELECTRICAL MACHINE ELECTRONICS .

NOTE: RISK OF DAMAGE
Pressure on the lid or busbars results in destruction of the components in the electrical machine electronics.

Do not exert any pressure on the lid of the electrical machine electronics.
Do not exert any pressure on the busbars of the electrical machine electronics.
Do not place any tools or objects on the lid of the electrical machine electronics.