Engine Control Module: Service and Repair

12 14 550 Replace the control unit (DME) (N12, N14, N16, N18)







Necessary preliminary work:
- Switch off ignition.
- Clamp off battery.

IMPORTANT: Follow notes for removing and installing electronic control units.







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

Switch off ignition.







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







Replacement:
- Carry out programming/encoding.

NOTE:
- Connect diagnosis system.
- Read fault memory.
- Check stored error/fault messages.
- Rectify fault.
- Delete fault memory.







Version 1:
Unlock and remove cover (1).







Type 2:
Release screw (1) at side.
Unlock clamps and remove cover.







Unlock connector (1) and remove.







Press locks in direction of arrow and remove control unit (2) towards top.
Locks are accessible through bore holes (1).







NOTE:
- Reassemble the vehicle.
- Check stored fault messages.
- Delete fault memory.