Remove/Install Rear Bumper - AR88.20-P-2200GQA

Model 166.8 

Shown on model 166.8 with CODE (550) Trailer hitch 

Fig 1: Rear Bumper Components Location - Model 166.8 (Shown With Code 550)

Courtesy of MERCEDES-BENZ USA

Shown on model 166.8 with CODE (550) Trailer hitch 

Courtesy of MERCEDES-BENZ USA

Shown on MODEL 166.874 

Courtesy of MERCEDES-BENZ USA

	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Open liftgate
2	Lift vehicle on vehicle lift		AR00.60-P-1000GZ
3	Remove bolts (1)
4	Detach left and right fender liner in rear fender in area of bumper (2)		AR88.10-P-1400GQ
5	Remove left and right bolt (5)	Model 166.8 (except 166.874) as of model year 2016 Model 166.874
6.1	Remove left and right bolt (3)	Model 166.8
6.2		Model 166.874
7	Unclip bumper (2) from side wall (arrow a)	Observe lug (4). Otherwise the rear lamp may be damaged.
8	Unclip bumper (2) below rear lamp (arrow b) and detach until electrical connectors (6, 7) are disconnected
9	Disconnect electrical connectors (6, 7) and remove bumper (2)	The number of electrical connectors varies according to vehicle equipment.
10	Install in the reverse order
	Check
11	Switch on ignition and check blind spot assist for operational readiness	Model 166.8 with code 234 (Blind Spot Monitoring) The operation and warning indicators in the outside mirrors illuminate red and then yellow.
12	Switch on ignition, switch on PARKTRONIC, engage reverse gear, disengage parking brake and PARKTRONIC or active parking system with PARKTRONIC for operational readiness	Model 166.8 with code 220 (PARKTRONIC) Model 166.8 with code 235 (Active Parking Assist with PARKTRONIC) The PARKTRONIC automatically performs a self-test and the operational readiness is signaled via the warning indicators.