(Remove/Install Parktronic System (PTS) Sensors In Rear Bumper - AR54.65-P-0002GQ)

Model 166 

up to model year 2016 

with code 220 (PARKTRONIC system (PTS)) 

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove bumper (1)	Model 166.8 up to model year 2016 with code 220 (PARKTRONIC system (PTS))	AR88.20-P-2200GQA
		Model 166.0 up to model year 2016 with code 220 (PARKTRONIC system (PTS))	AR88.20-P-2200GQ
2	Press lock in direction of arrow and remove corresponding parking system distance sensor (B8/7, B8/8, B8/9, B8/10) from bracket (3)	: Make sure that the decoupling ring (4) is installed at the correct position. Otherwise the distance sensor may malfunction. : The decoupling ring (4) must be checked for damage and, if necessary, replaced.
3	Release and disconnect electrical connection (2) for corresponding parking system distance sensor (B8/7, B8/8, B8/9, B8/10)
4	Install in the reverse order
	Check
5	Switch on ignition and PARKTRONIC, engage reverse gear and release parking brake	The PARKTRONIC automatically performs a self-test and the operational readiness is signaled via the warning indicator.