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!
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:
Car may slip off the vehicle hoist where components are supported.
Danger! Immobilization period-threatening injuries!
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!
Danger! Immobilization period-threatening injuries!
- Ensure there is a specific weight compensation on the car.
WARNING:
Hot fluids.
Risk of scalding!
Risk of scalding!
- Conduct all work in the vehicle wearing appropriate personal protective equipment only.
WARNING:
Work on components with requirements for a secure energy supply
Ensure proper function after a repair
Ensure proper function after a repair
- Lines are allowed to have only one repair area.
- When components are replaced, the notices in the applicable BMW parts catalogue must be observed.
CAUTION:
Materials harmful to health.
Contact with fluids 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:
RISK OF DAMAGE
Dirt or foreign body in the cooling system.
Contamination of the cooling system can lead to malfunction or loss of function.
Dirt or foreign body in the cooling system.
Contamination of the cooling system can lead to malfunction or loss of function.
- Adhere to the utmost cleanliness.
- It is essential to protect the open cooling system from contamination. It is essential to prevent dirt or foreign bodies from entering the cooling system, for example, by covering or closing.
- Protect the components of the cooling system against contamination after removal, for example, by covering or closing.
NOTE:
TECHNICAL INFORMATION
After disconnecting, seal the high-voltage connector with the cover caps from the set of special tools 5A4A589.
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.
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!
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.
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.
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
Follow notes for repair work on the cooling system.
For additional information see:
17 00 NOTES FOR REPAIR WORK ON THE COOLING SYSTEM
NOTE:
TECHNICAL INFORMATION
After a brake pad exchange and before pressing the brake pedal: It is imperative to apply the electromechanical parking brake.
If this is not observed, a CC message appears and the brake system switches to the emergency program. The brake booster is no longer active.
After a brake pad exchange and before pressing the brake pedal: It is imperative to apply the electromechanical parking brake.
If this is not observed, a CC message appears and the brake system switches to the emergency program. The brake booster is no longer active.
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 FRONT LEFT AND RIGHT WHEELS .
- Refer to REMOVING THE REAR SECTION OF THE WHEEL ARCH COVER ON THE FRONT LEFT AND RIGHT .
- Refer to REMOVING THE FRONT SECTION OF THE FRONT WHEEL ARCH COVER ON THE LEFT AND RIGHT .
- Refer to PARTIALLY REMOVING THE LEFT AND RIGHT BRAKE VENTILATION DUCT .
- Refer to REMOVING THE BOTTOM FRONT LEFT AND RIGHT COVER .
- Refer to LOOSENING THE TIE ROD ON THE LEFT AND RIGHT FROM THE SWIVEL BEARING .
- Refer to RELEASING THE TENSION STRUTS FROM THE SWIVEL BEARING ON THE LEFT AND RIGHT .
- Refer to RELEASING THE RIDE HEIGHT SENSOR FROM THE LOWER WISHBONE .
- Refer to PREPARING THE SPECIAL TOOL .
- Refer to REMOVING THE ELECTRIC DRIVE UNIT FROM THE FRONT SUBFRAME .
- Refer to REMOVING THE SUPPORT OF THE ELECTRIC COOLANT PUMP .
- Refer to REMOVING FRONT 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.
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.
- Do not place it on lid (1).
Repair information relating to high-voltage components
- Do not touch conductor lines!
- Disconnect the plug connection (1).
- Loosen screws (2).
- Release wiring harness mounting (3).
- Release nuts (4).
- Loosen screws (5).
- Remove screws (arrows).
Removing the sound insulation on the left
- Release the clamps (1).
- Remove the sound insulation (2).
- Pull the retainer (1) in the arrow direction.
- Disconnect plug connection (2).
- Position the special tool 5 A2D AF0
on electrical machine electronics (2) as shown and secure it using knurled screw (1).
- Position the special tool 5 A2D AF2
on EME (2) as shown and secure it using knurled screw (1).
- Raise EME (1) out of the electrical machine.
- Place EME (1) in special tool 5 A2D AC5 .
- Seal the special tool 5 A2D AC5 with the lid.