12 14 550 Replacing control unit (DME) (N52T)

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION)

Necessary preliminary work:

Switch off ignition.
Disconnect BATTERY EARTH LEAD .
Remove ACOUSTIC COVER

IMPORTANT: FOLLOW INSTRUCTIONS FOR REMOVING AND INSTALLING CONTROL UNITS .

Replacement:

CARRY OUT PROGRAMMING/ENCODING

IMPORTANT: It is absolutely essential to read out the fault memory with the BMW diagnosis system and to create a fault memory printout.

Switch off ignition.

Unlock all plugs from control unit (1) and detach.

Unfasten screws (2).

Tightening torque 12 90 1AZ .

Remove control unit.

Fig 1: Identifying Plugs From Control Unit And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Check stored fault messages.
Delete fault memory.