Remove/install Parktronic system (PTS) sensors in front bumper - AR54.65-P-0001RK

MODEL 231 

with CODE 220 (PARKTRONIC) 

with CODE 235 (Active Parking Assist with PARKTRONIC) 

Fig 1: Parktronic System Sensors In Front Bumper Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove front bumper (1)		AR88.20-P-2000RK
2	Pull hose of left front bumper pedestrian protection sensor (B151/1) or right front bumper pedestrian protection sensor (B151/3) out of the groove in left impact absorber (5) or right impact absorber (6)	Only when removing from center left front parking system distance sensor (B8/2) or center right front parking system distance sensor (B8/5). Vehicles with CODE U60 (Pedestrian protection)	AR91.60-P-0950RK
3	Remove left impact absorber (5) or right impact absorber (6)	Only when removing from center left front parking system distance sensor (B8/2) or center right front parking system distance sensor (B8/5).
	General information on the impact absorber		AH88.20-P-1000-01A
4	Unclip outer left front parking system distance sensor (B8/1), center left front parking system distance sensor (B8/2), inner left front parking system distance sensor (B8/3), inner right front parking system distance sensor (B8/4), center right front parking system distance sensor (B8/5) or outer right front parking system distance sensor (B8/6) out of bracket (3)	To do this, unlock the locks of bracket (3) (arrows). Check the sealing ring (4); replace if necessary.
5	Disconnect electrical connection (2) on outer left front parking system distance sensor (B8/1), center left front parking system distance sensor (B8/2), inner left front parking system distance sensor (B8/3), inner right front parking system distance sensor (B8/4), center right front parking system distance sensor (B8/5) or outer right front parking system distance sensor (B8/6)
6	Install in the reverse order
	Check
7	Perform function test