Remove/Install Parktronic System (PTS) Sensors In Front Bumper - AR54.65-P-0001GQ

MODEL 166 with CODE 220 (PARKTRONIC) 

Shown on model 166.873 

Fig 1: Identifying Parktronic System Sensors Remove/Install Components - Shown On Model 166.873

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Parktronic System Sensors Remove/Install Components - Shown On Model 166.873

Courtesy of MERCEDES-BENZ USA

	Remove/install
1.1	Remove daytime running lamps headlamp	When removing the outer and center distance sensors
		MODEL 166 (except 166.074/874) with CODE 220 (PARKTRONIC) The outer and center distance sensors must not be swapped.	AR82.10-P-2300GQ
1.2	Remove front bumper	When removing the inner distance sensors
			AR88.20-P-2000GQ
		Place front bumper on a clean, soft mat. Otherwise it may be contaminated or damaged
2	Unfasten clips (3k) and remove impact absorber (3)	When removing the inner distance sensors
	Check
3	Check impact absorber (3)	When removing the inner distance sensors Check impact absorber (3) for pressure marks and cracks, replace if damaged.
	General information on the impact absorber		AH88.20-P-1000-01A
4	Push retaining lug (1) in the direction of the arrow and take the relevant distance sensor out of bracket (2)	Ensure correct installation position of decoupling ring (5). Malfunctions of the distance sensor may otherwise occur. Check decoupling ring (5) for damage and replace if necessary.
5	Disconnect electrical connection (4)
6	Install in the reverse order
7	Check PARKTRONIC operating state	Switch on ignition and PARKTRONIC, engage reverse gear and release parking brake. PARKTRONIC automatically performs a self-test and operational readiness is signaled via the warning indicator.