Remove/install Parktronic system (PTS) sensors in rear bumper - AR54.65-P-0002R

MODEL 230.4 with CODE (220) Parktronic System (PTS) 

Shown on vehicle up to 28.1.08 without code (809) Model year 2009 

Fig 1: Identifying Parktronic System Sensors (Rear Bumper) Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
1.1	Remove ram strip (1) from rear bumper (2)	For vehicles up to 28.1.08 without code (809) Model year 2009	AR88.80-P-2220R
1.2	Remove rear bumper (2)	For vehicles as of 29.1.08 or with code (809) Model year 2009	AR88.20-P-2200R
2	Expose sensor (A43b7, A43b8, A43b9, A43b10) and detach electrical connector
3.1	Release lugs (3) using the release tool towards the direction of the arrow and remove sensors (A43b7, A43b8, A43b9, A43b10)	For vehicles up to 28.1.08 without code (809) Model year 2009 Installation:  Check sealing ring (4) and replace if damaged.
			Fig 2
3.2	Unclip sensor (A43b7, A43b8, A43b9, A43b10) by hand from rear bumper (2) and remove	For vehicles as of 29.1.08 or with code (809) Model year 2009 Unclip sensor (A43b7, A43b8, A43b9, A43b10) at lugs (3). Installation:  Check sealing ring (4) and replace if damaged.
4	Install in the reverse order

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

Courtesy of MERCEDES-BENZ USA