61 35 275 Remove and install (replace) control unit Rear Electronic Module (REM) (2' Series coupe and convertible, 2017-2021)

Necessary preliminary tasks: 

• Refer to CLAMPING OFF BATTERY LEAD FROM NEGATIVE CONNECTION POINT .
• Refer to REMOVING RIGHT LUGGAGE COMPARTMENT WHEEL ARCH PANEL .

Unlock plug connections (1) and disconnect.

Unlock and disconnect positive battery cable (2). (Follow instructions in the next work step)

Unscrew nuts (3).

Tightening torque 61 35 4AZ .

Remove control unit (4).

Installation note: 

Make sure all plug connections are correctly latched.

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock the positive battery cable connector: 

1. Loosen lock (1) in direction of arrow.
2. Unlock top positive battery cable connector (2) in direction of arrow.
3. Disconnect battery positive lead (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement: 

Carry out VEHICLE PROGRAMMING/CODING .