Central Electronics Box Fan: Service and Repair

12 90 100 - Replacing fan for electronics box (N62)





Note:
Read and print out fault memory with MoDiC or BMW DIS.

Switch off ignition.
Follow instructions for disconnecting and connecting battery Instructions for Disconnecting and Connecting Battery.
Disconnect battery.

Caution!
Follow instructions for removing and installing electronic control units Service and Repair.





Remove fresh air duct Removing and Installing/Replacing Left or Right Microfilter Air Duct.
Release screw and remove holder (1).
Release screws and remove cover (2) from control unit box.

Note:
Release screws on seal (3) only when removing wiring harness.





Installation:
Insert tabs (1) in openings (2) and close cover.





Unlock plug connections on Valvetronic control unit (1), DME control unit (2) and integrated supply module (3) and detach.
Remove Valvetronic control unit (1), DME control unit (2) and integrated supply module (3).
Unlock plug connection on fan for electronics box and detach.
Release both screws on control unit carrier and remove towards top.





Unfasten screws.
Remove fan (1) for electronics box.





Read out fault memory of control unit of Digital Motor Electronics (DME).
Check stored fault messages.
Rectify faults.
Now clear the fault memory.