34 52 121 Removing and Installing/Replacing ICM Control Unit

34 52 121 Removing and installing/renewing ICM control unit







IMPORTANT: Read and comply with notes on protection against electrostatic damage (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.







Necessary preliminary tasks:
- Disconnect negative battery cable.
- Remove centre console assy.







WARNING:
Make sure that the negative battery lead is disconnected.
There is a risk of the airbag being triggered inadvertently.

Undo nuts (1) and raise ICM control unit (2).
Release plug connection (3) and remove ICM control unit (2).

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