Remove/install crash sensor

AR91.60-P-0950FR

Remove/install crash sensor

05.11.2019

Model

257, 290

with code U60 (Pedestrian protection - Active hood)

Shown with code 292 (PRE-SAFE® Impulse side)

1

Front bumper

3

Impact absorber

B151/3

Right front bumper pedestrian protection sensor

2

Hose

B151/1

Left front bumper pedestrian protection sensor

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Notes on pedestrian protection sensor

AH91.60-P-0001-01A

Notes on safety-relevant components

AH00.00-Z-0019-01A

 

Remove/install

1

Remove front bumper (1).

AR88.20-P-2000FR

2

Disconnect electrical connectors on front bumper pedestrian protection sensors (B151/1, B151/3).

3

Take hose (2) out of groove of impact absorber (3).

 Installation:
Ensure that the hose (2) is correctly seated in groove of impact absorber (3). The hose (2) must be routed in the groove free of tension or kinks.
Otherwise the pedestrian protection system may malfunction.

 Installation: Position hose (2) as deep as possible in groove of impact absorber (3).
The hose (2) must be seated at the same depth in the groove across the entire length of the impact absorber (3).

4

Check impact absorber (3) for damage or deformation.

Topical note

General information on the impact absorber

AH88.20-P-1000-01A

If there is a problem,



Replace impact absorber (3).

5

Remove front bumper pedestrian protection sensors (B151/1, B151/3) together with hose (2).


The front bumper pedestrian protection sensors (B151/1, B151/3) are permanently connected to the hose (2) and must not be separated.
Otherwise the pedestrian protection system may malfunction.

 Model 290
with code U60 (Pedestrian protection - Active hood)
The front bumper pedestrian protection sensors (B151/1, B151/3) are secured onto the front bumper (1) with a rivet.

6

Install in the reverse order.