BMW 7 Series: AFGS (Active Pedestrian Protection) Procedure After Accident

The AFGS system consists of the following components:

• Satellites (control unit + sensor)
  • Sensors, inside, bumper trim, left/middle/right
  • ACSM control unit (Crash Safety Module)
• Cables and connectors
• Engine compartment lid hinges
  • Actuator
  • Engine compartment lid hinge
• Engine compartment lid catch
  • Catch, engine compartment lid
  • Catch, upper section (striker)

In case of a frontal or side collision in the area of the engine compartment lid and/or the A-pillars, check the following components:

Satellites (control unit + sensor)

• Procedure
  • Read fault memory
  • Disconnect battery and observe waiting period
  • Rectify faults
  • Reconnect battery and observe waiting period
  • Delete fault memory
  • Turn off ignition and wait at least 2 minutes (no consumers may be switched on during this period such as e.g. interior lights, radio, etc.)
  • Switch on ignition.
  • Clear fault memory and if necessary rectify faults

Cables and connectors

• Procedure
  • Check cables and connectors for damage, replace if necessary.

Procedure if AFGS was activated

Engine compartment lid hinges

• Replace ACTUATORS
• CHECK BOTH HINGES OF THE ENGINE COMPARTMENT LID AND REPLACE IF NECESSARY

Engine compartment lid catch

• Replace both engine compartment lid catches.
• Check the top sections of the catch and replace if necessary.

Procedure if AFGS was not activated

Engine compartment lid hinges

• Check BOTH HINGES OF THE ENGINE COMPARTMENT LID and replace if necessary
• Only if the hinges are faulty, replace the ACTUATOR.

Engine compartment lid catch

• Check BOTH ENGINE COMPARTMENT LID CATCHES and replace if necessary.
• Check the top section of the catch and replace if necessary.

CHECK ACTUATOR

Necessary preliminary tasks:

• REMOVE ACTUATOR

Check actuator for damage.

CHECK ACTUATOR FOR DAMAGE

Fig. 21: Removing Actuator

CHECKING HOOD/BONNET LOCKS

Necessary preliminary tasks:

• Remove hood/bonnet locks.

Check hood/bonnet locks for damage; replace if necessary.

CHECK HOOD/BONNET LOCKS FOR DAMAGE

Fig. 22: Identifying Hood/Bonnet Lock

READ NEXT: