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

MODEL 166 with CODE 220 (PARKTRONIC)

Fig 1: Identifying Parktronic System Sensors Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove bumper (1)	MODEL 166.8	AR88.20-P-2200GQA
1	Remove bumper (1)	MODEL 166.0	AR88.20-P-2200GQ
2	Press lock in direction of arrow and remove corresponding distance sensor (B8/7, B8/8, B8/9, B8/10) from bracket (3)	Check decoupling ring (4) is correctly seated. Otherwise the distance sensor may malfunction. Check decoupling ring (4) for damage and, if necessary, replace.
3	Release and disconnect electrical connection (2) for corresponding distance sensor (B8/7, B8/8, B8/9, B8/10)
4	Install in the reverse order
6	Check PARKTRONIC operating state	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.