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

MODEL 251 with CODE (220) Parktronic System (PTS) 

Fig 1: Identifying Parktronic System Sensors Remove/Install Components (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Parktronic System Sensors Remove/Install Components (2 Of 2)

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Unclip outer cover (4) with outer left front PTS ultrasonic sensor (B8/1) or outer cover (4) with outer right front ultrasonic sensor PTS (B8/6) from front bumper (arrow)	Danger of breaking!  Carefully unclip outer cover (4). Only vehicles except code (494), USA version on which only the outer left front PTS ultrasonic sensor (B8/1) or only the outer right front PTS ultrasonic sensor (B8/6) or only the two outer sensors are removed.
2	Remove front bumper	Put bumper down on a soft support so that the paint is not damaged.	AR88.20-P-2000RT
3	Detach connector (1) from the PTS ultrasonic sensor to be removed
4	Unlock and remove corresponding PTS ultrasonic sensor at the lock (2)	Check sealing ring (3) and replace if necessary.
5	Install in the reverse order