Removing the brush module

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.

WARNING: Work on components with requirements for a secure energy supply
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!

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.

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.

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 .

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.

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 TOP SOUND INSULATION .
Refer to REMOVING THE RIGHT MOUNTING BRACKET .
Refer to REMOVING SOUND INSULATION .
Refer to REMOVING THE LID FROM THE BRUSH MODULE .

Loosen screws (1) .
Detach the excitation cable (2) .
Loosen screws (3) .

Courtesy of BMW OF NORTH AMERICA, INC.
Detach the three springs on the front and the three springs on the rear (1) with the help of a screwdriver (2) .
Detach a total of six springs (1) .

All six carbon brushes must be free of tension.

Courtesy of BMW OF NORTH AMERICA, INC.
Position special tool 5 A3B 919 (part A) on the rotor shaft (1) through the brush module (2) all the way to the stop.
All six carbon brushes must be in firm contact with the special tool 5 A3B 919 (part A).
Detach the carbon brush module (2) from the rotor shaft (1) .

Courtesy of BMW OF NORTH AMERICA, INC.