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

MODEL 219.3 with CODE (220) Parktronic system (PTS) 

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

Courtesy of MERCEDES-BENZ USA

	Remove/Install
1	Remove front bumper (1).		AR88.20-P-2000TX
2	Unclip sensor (A42b1, A42b2, A42b3, A42b4, A42b5 or A42b6) from front bumper (1)	Check sealing ring (3) and replace if damaged.
3	Separate electrical connector (2) from sensor (A42b1, A42b2, A42b3, A42b4, A42b5 or A42b6)	Ensure that electrical connector (2) is seated properly.
4	Install in the reverse order