Engine Control Module: Service and Repair

13 61 501 Replacing Control Unit (DDE)







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







Necessary preliminary work:
- Switch off ignition.
- Disconnect battery earth lead.
- Remove microfilter housing.

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.







Lever out expanding rivet.
Remove gasket (1).
Unfasten screws (2).
Feed out partition wall (3) and remove.







Lever out expanding rivet.
Release locks in direction of arrow.
Feed out fresh-air duct (1) and remove.







Open clamps.
Release lock (1) in direction of arrow.
Remove cover (2).







Release screws and remove retaining bracket (1).
Unlock upper part (2) of partition seal in direction of arrow and remove.
Release grommets (3) for wiring harnesses from lower section of partition seal and from electronics box.

Installation note:
Make sure grommets are correctly seated (watertightness).







M57T2 only:
Unlock connectors (1) using slide in direction of arrow and remove.
Remove control unit (2).

Installation note:
Replacement:
Note device identification number and encoding.







N57 only:
Unlock and detach all plug connections on the DDE control unit (1).
Unlock DDE control unit (1) and remove upwards.

Installation note:
Replacement:
Note device identification number and encoding.







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