Central Electronics Box: Service and Repair

12 90 ... - Removing and installing/replacing electronics box





Important!
Read and comply with notes on protection against electrostatic damage (ESD protection) 61 35 ... Notes on ESD Protection (Electro Static Discharge).

Note:
Follow instructions for removing and installing electronic control units





Necessary preliminary tasks:
- Read fault memory.
- Disconnect battery negative lead 61 20 900 Disconnecting and Connecting Battery Negative Lead
- Remove electronics box fan Service and Repair
- Remove distribution box (passenger compartment) 61 13 050 Removing and Installing/Replacing Fuse Box In Passenger Compartment
- Release control unit holder





Pull rubber grommets out of electronics box. Disconnect all plug connections.





Release screws (arrows).
Disconnect wiring harness on engine compartment side on right.
Remove electronics box.





Installation Note:
Make sure gasket (1) is correctly seated on electronics box.
Add final details to vehicle.
Read fault memory.





Replacement (E70 - Security):
Pay attention to engine compartment protective features.