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

MODEL 171.4 with CODE (220a) Parktronic System (PTS) 

Fig 1: Identifying Parktronic System Sensors In Front Bumper Components

Courtesy of MERCEDES-BENZ USA

	Remove/Install
1	Remove front bumper (2).	Put front bumper (2) down on a suitable storage facility.	AR88.20-P-2000V
2	Release the locking devices (1) in the direction of the arrow using the unlocking tool and remove sensors (A42b1, A42b2, A42b3, A42b4, A42b5, A42b6) from the front bumper (2)		Fig 2
		Installation:  Check sealing ring (4) and replace if damaged.
3	Disconnect electrical connectors (3)
4	Install in the reverse order

Fig 2: Identifying Unlocking Tool (168 589 02 31 00)

Courtesy of MERCEDES-BENZ USA