Remove the BDC control unit
WARNING:
Work on components with requirements for a secure energy supply
Ensure proper function after a repair
Ensure proper function after a repair
- Lines are allowed to have only One repair area.
- Notices in the diagnostic system circuit diagrams must be observed. notes on the content and handling of diagnosis information in ista. refer to 61 35 779 REPLACING BODY DOMAIN CONTROLLER CONTROL UNIT (BDC) (AFTER VEHICLE DIAGNOSIS) (4' SERIES COUPE, CONVERTIBLE, AND GRAN COUPE SEDAN) .
- When components are replaced, the notices in the applicable BMW parts catalogue must be observed.
Preliminary work
- Refer to DEACTIVATING THE 48V ELECTRICAL SYSTEM .
- Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
- Refer to REMOVING RIGHT FOOTWELL TRIM .
- Refer to REMOVING DOOR SILL COVER STRIP, INTERIOR RIGHT .
- Refer to REMOVING THE SIDE TRIM PANEL IN THE FOOTWELL AT THE RIGHT-HAND A-PILLAR .
WARNING:
Work on components with requirements for a secure energy supply
Ensure proper function after a repair
Ensure proper function after a repair
- Lines are allowed to have only One repair area.
- Notices in the diagnostic system circuit diagrams must be observed. notes on the content and handling of diagnosis information in ista.
- When components are replaced, the notices in the applicable BMW parts catalogue must be observed.
- Unlock detents (1) and feed out the power distribution box (2) downward.
- Fold the carpet (1) to the side.
- Loosen the detents (2).
- Guide out cover (3) in the arrow direction.
- Unlock all plug connections and disconnect.
- Release detent (1).
- Maneuver the BDC control unit (2) out of the holder (3) in the arrow direction.