12 90... Removing and installing/replacing electronics box
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.
Necessary preliminary tasks
- Read fault memory.
- Disconnect NEGATIVE BATTERY 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).
Lift out plug connection (2), fuse carrier (3) and wiring harness grommet (4) from electronics box (1).
Installation:
Make sure wiring harness grommets (4) are correctly seated in electronics box (1).
Unlock DME control unit at holders (1) and raise slightly.
Pull tab (3) in direction of arrow out of housing and disconnect plug connections (2) on DME control unit.
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.
Unlock device holder (2) at holder (1) and remove.
Remove DME control unit (3).
Unlock device holder (2) at holder (1) and remove.
Remove device holder (1) from electronics box.
Release screws (1).
Replacement
Modify water drain valve (2) and bump stop (3).
Installation:
Make sure gasket (1) is correctly seated on electronics box.