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

Model 190 

With Code 220 (PARKTRONIC system (PTS)) 

Fig 1: PARKTRONIC System (PTS) Sensors In Rear Bumper Components Location - Model 190 With Code 220

Courtesy of MERCEDES-BENZ USA

Topical note	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Raise vehicle		AR00.60-P-1000RG
2	Remove rear bumper		AR88.20-P-2200RG
3	Disconnect electrical connections (1) from rear parking system distance sensors (B8/7-10)
4	Release retaining lugs (arrows) and remove rear parking system distance sensors (B8/7-10) from corresponding brackets (2)	Check the seal (3); replace if necessary. : Ensure that seal (3) is seated properly.
5	Install in the reverse order
	Check
6	Perform function test