34 52 121 Removing and installing/renewing ICM control unit
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.
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:
- Disconnect NEGATIVE BATTERY CABLE .
- Remove CENTER CONSOLE assy.
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