Remove/Install Crash Sensor - AR91.60-P-0950FR

Model 257, 290 with code U60 (Pedestrian protection - Active hood)

Fig 1: Crash/Pedestrian Protection Sensor Components Location - Model 257 With Code U60 (Shown With Code 292)

G14549967

Courtesy of MERCEDES-BENZ USA

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

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).	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. 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	If there is a problem, ↓ Replace impact absorber (3).	AH88.20-P-1000-01A
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.