Removing the electrical machine electronics

WARNING: 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:
61 00... SAFETY INSTRUCTIONS ON HANDLING HYBRID CARS .
For additional information see:
61 25... 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 there is a specific weight compensation on the car.

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, seal the high-voltage connector with the cover caps from the set of special tools 5A4A589.

NOTE: TECHNICAL INFORMATION
Perform wheel alignment after installation.

NOTE: TECHNICAL INFORMATION
The radial shaft seal in the electric machine transmission must be replaced each time the output shaft is removed!

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
Follow notes for repair work on the cooling system.
For additional information see:
17 00 NOTES FOR REPAIR WORK ON THE COOLING SYSTEM .

Preliminary work

Refer to REMOVING THE FLAP IN THE LUGGAGE COMPARTMENT WHEEL ARCH TRIM PANEL ON THE RIGHT .
Refer to REMOVING THE COVER OF THE REAR RIGHT ENGINE COMPARTMENT .
Refer to REMOVING THE REAR LEFT AND RIGHT WHEELS .
Refer to RELEASING THE LEFT AND RIGHT OUTPUT SHAFT FROM THE WHEEL BEARING .
Refer to REMOVING THE BOTTOM FRONT LEFT AND RIGHT COVER .
Refer to REMOVING THE WIRING HARNESS MOUNTING .
Refer to REMOVING THE TOP SOUND INSULATION .
Refer to REMOVING RIGHT POTENTIAL EQUALIZATION LINE .
Refer to PREPARING THE SPECIAL TOOL .
Refer to REMOVING REAR SOUND INSULATION .
Refer to ATTACHING HIGHLY INTEGRATED ELECTRIFIED DRIVE TOPOLOGY TO THE ASSEMBLY JIG .
Refer to REMOVING THE 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.

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Do not place it on lid (1).

Repair information for high-voltage components

Do not touch conductor lines!
Loosen screws (1).
Loosen screws (2).
Unlock plug connection (3) (arrow) and disconnect it.

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Loosen screws (1).

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Pull the retainer (1) in the arrow direction.
Disconnect plug connection (2).

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Removing the lid of the high-voltage connection

Loosen screws (1).
Lift lid (2) at the position marked with an arrow using a large screwdriver.
Remove lid (2).

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Loosen screws (1).

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Position the special tool 5 A2D AF0 on EME (2) as shown and secure it using knurled screw (1).

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Position the special tool 5 A2D AF2 on EME (2) as shown and secure it using knurled screw (1).

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Raise EME (1) out of the electrical machine.

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Place EME (1) in special tool 5 A2D AC5 .
Seal the special tool 5 A2D AC5 with lid.

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