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.

WARNING: Work on components with requirements for a secure energy supply.
Ensure function after a repair.

Lines are allowed to have only one repair area.
Notices in the diagnostic system circuit diagrams must be observed.
Refer to NOTES ON THE CONTENT AND HANDLING OF DIAGNOSIS INFORMATION .
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.
Always protect opened 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, 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 .

NOTE: TECHNICAL INFORMATION
After a brake pad exchange and before pressing the brake pedal: Always 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 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 FRONT LEFT AND RIGHT WHEELS .
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 THE RIGHT FRONT UNDERSHIELD .
Refer to REMOVING THRUST FIELD .
Refer to REMOVING THE ACOUSTIC CAPSULE .
Refer to REMOVING THE FRONT SECTION OF THE FRONT WHEEL ARCH COVER ON THE LEFT AND RIGHT .
Refer to REMOVING LEFT AND RIGHT BRAKE VENTILATION DUCT .
Refer to REMOVING THE LEFT AND RIGHT DEFORMATION ELEMENT .
Refer to BRINGING THE COOLING MODULE TO THE INSTALLATION POSITION .
Refer to LOOSENING THE BRAKE CALIPER, LEFT AND RIGHT .
Refer to REMOVING THE COVER OF THE STEERING ASSEMBLY ON THE LEFT AND RIGHT .
Refer to LOOSENING THE UNIVERSAL JOINT FROM THE STEERING GEAR .
Refer to REMOVING THE EPS WIRING HARNESS .
Refer to RELEASING THE WISHBONE ON THE TOP LEFT AND RIGHT FROM THE SWIVEL BEARING .
Refer to LOOSENING THE ANTI-ROLL BAR LINK ON THE LEFT AND RIGHT FROM THE ANTI-ROLL BAR .
Refer to REMOVING THE SPRING STRUT HOLDER ON LEFT AND RIGHT .
Refer to REMOVING LEFT OUTPUT SHAFT .
Refer to REMOVING RIGHT OUTPUT SHAFT .
Refer to DISCONNECTING THE PLUG CONNECTIONS OF THE ELECTRIC DRIVE UNIT .
Refer to REMOVING THE ENTIRE COWL COVER .
Refer to REMOVING THE FRESH-AIR DUCT IN THE ENGINE COMPARTMENT .
Refer to REMOVING THE ELECTRIC A/C COMPRESSOR (EKK) .
Refer to DISCONNECTING THE COOLANT LINES .
Refer to DISCONNECTING THE HIGH-VOLTAGE PLUG CONNECTION .
Refer to RELEASING THE ENGINE SUPPORT BRACKET ON THE LEFT AND RIGHT .
Refer to PREPARING THE MOBILE TABLE LIFT .
Refer to SUPPORTING THE FRONT AXLE SUPPORT .
Refer to RELEASING THE SWIVEL BEARING ON THE LEFT AND RIGHT .
Refer to REMOVING THE COMPLETE FRONT AXLE WITH ELECTRIC DRIVE UNIT .
Refer to REMOVING THE POTENTIAL EQUALIZATION LINE .
Refer to DISCONNECTING THE COOLANT HOSE .
Refer to PREPARING THE SPECIAL TOOL .
Refer to REMOVING THE ELECTRIC DRIVE UNIT FROM THE FRONT SUBFRAME .
Refer to REMOVING THE ELECTRICAL COOLANT PUMP .
Refer to REMOVING THE ELECTRIC COOLANT PUMP HOLDER .
Refer to REMOVING FRONT 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.

Do not place it on lid (1) .
Repair information relating to high-voltage components

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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).

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Removing the sound insulation on the sides

Release the clamps (1) .
Remove the sound insulation (2) .

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

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Position the special tool 5 A2D AF0 on electrical machine electronics (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 the lid.

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