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

Model 257, 290 

with code 235 (Active Parking Assist) 

Shown on removed rear bumper on model 257 

Fig 1: Rear Parking System Distance Sensors Component Location - Model 257 With Code 235

Courtesy of MERCEDES-BENZ USA

Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1.1	Remove appropriate rear fender liner.	Model 290 with code 235 (Active Parking Assist) For removal of rear parking system distance sensors (B8/7, B8/10).	AR88.10-P-1302FR
1.2	Remove rear bumper.	Model 290 with code 235 (Active Parking Assist) When removing the rear parking system distance sensors (B8/8, B8/9, B8/11, B8/12) o when removing all the rear parking system distance sensors (B8/7, B8/8, B8/9, B8/10, B8/11, B8/12)	AR88.20-P-2200FRX
2	Remove rear bumper.	Model 257 with code 235 (Active Parking Assist)	AR88.20-P-2200FR
3	Release and disconnect electrical connector (1) at rear parking system distance sensor (B8/7, B8/8, B8/9, B8/10, B8/11, B8/12).
4	Release catch hooks of corresponding holder (2) in direction of arrow and remove rear parking system distance sensor (B8/7, B8/8, B8/9, B8/10, B8/11, B8/12) from holder.
Notice	Information on painting PARKTRONIC system sensors		AH98.00-P-9019-02A
		If the rear parking system distance sensor (B8/7, B8/8, B8/9, B8/10, B8/11, B8/12) is replaced, it must be painted in the color of the bumper. Check relevant seal (3). If there is a problem, ↓ Replace relevant seal (3).
5	Install in the reverse order.