Central Electronics Box: Service and Repair

12 90 ... Removing And Installing/replacing Electronics Box







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

NOTE: Follow instructions for removing and installing electronic control units







Necessary preliminary tasks:
- Read out fault memory
- Disconnect battery earth cable
- Remove microfilter housing
- Remove tension strut on spring strut dome on right







Release screws (1).
Slacken nut (2).
Lift out right heater end plate (3).

Installation:
Ensure gasket (4) is correctly seated.







Unlock fasteners (1) from below and slide upwards approx. 10 mm.
Unlock locks (2) in direction of arrow.
Remove cover (3).







Disconnect plug connection (1).
Unlock plug connection (2) in direction of arrow and disconnect.
Pull wiring harness grommet (5) out of electronics box and remove wiring harness (4).
Pull wiring harness grommet (3) out of electronics box and remove wiring harness with equipment carrier (6).

Installation:
Make sure wiring harness grommets (3, 5) are correctly seated in electronics box.







If necessary, press locking tabs (1) in direction of arrow and pull contact carrier (2) out of housing.







If necessary, press locking tab (1) in direction of arrow and pull contact carrier (2) out of housing.







Release screws (1).

Replacement:
Modify water drain valve (2) and bump stop (3).







Installation:
Make sure gasket (1) is correctly seated on electronics box.