34 52 121 Removing and installing/replacing ICM control unit (2' Series coupe and convertible, 2017-2021)
IMPORTANT:
Read and comply with notes on PROTECTION AGAINST DAMAGE FROM ELECTROSTATIC DISCHARGE
(ESD protection).
WARNING:
The sensor system for triggering the airbag is installed in the ICM control unit!
The battery must be disconnected before removing the ICM control unit (ICM control unit de-energized)!
There is a risk of the airbag being triggered inadvertently if this requirement is disregarded!
The battery must be disconnected before removing the ICM control unit (ICM control unit de-energized)!
There is a risk of the airbag being triggered inadvertently if this requirement is disregarded!
Necessary preliminary work:
- Refer to DISCONNECTING NEGATIVE BATTERY CABLE .
- Refer to REMOVING CENTER CONSOLE assembly.
WARNING:
Make sure that the negative battery lead is disconnected!
There is a risk of the airbag being triggered inadvertently!
There is a risk of the airbag being triggered inadvertently!
Disconnect plug connection (1).
Release nuts (2) and remove ICM control unit (3).
Installation note:
Replace self-locking nuts.
Tightening torque 34 51 2AZ .
IMPORTANT:
Do not trap any electrical wires when installing ICM control unit!
After removing and installing ICM control unit:
After completing repairs, use BMW Diagnosis and Information System to
- carry out ADJUSTMENT/START-UP OF ICM CONTROL UNIT .
Replacement:
After completing repairs, use BMW Diagnosis and Information System to
- carry out programming/encoding
- Carry out RIDE HEIGHT ADJUSTMENT .
- Carry out adjustment/start-up of ICM control unit