Notes
IMPORTANT:
Special tool 33 4 409 must not be removed!
Insert special tool 33 4 408 into special tool 33 4 401.
Fig. 125: Positioning Special Tools (33 4 408), (33 4 401) And (33 4 409)
Posi
Concept
The system reacts to vehicles approaching from
behind.
General information
Two radar sensors in the rear bumper monitor
the area behind the vehicle.
When a vehicle approaches from the rear at a
certain speed, the system responds as follows:
Active Protection: when a collision seems to
Necessary preliminary tasks
Remove WHEEL
Check WHEEL for lateral and radial runout
Remove TYRE from disc wheel
Remove dirt from rim well and rim flange
IMPORTANT: Disc wheels are not allowed to be repaired!
Mount disc wheel in balancing machine.
Fig. 30: Identifying Disc Wheel On Wheel Balanc