Disassemble/assemble rear bumper - AR88.20-P-2100SX

MODEL 221.0 /1 

Shown with code (220) Parktronic system (PTS) and code (889) Keyless Go 

Fig 1: Identifying Rear Bumper Components - With Code 220 Parktronic System

Courtesy of MERCEDES-BENZ USA

Shown with code (229) Park assistant and code (889) Keyless Go 

Fig 2: Identifying Rear Bumper Components - With Code 229 Parktronic System

Courtesy of MERCEDES-BENZ USA

	Disassemble/assemble
	Notes on avoiding damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
1	Remove rear bumper (1)	Vehicles without code (Z07) Top protection	AR88.20-P-2200SX
		Vehicles with code (Z07) Top protection	AR88.20-P-2200SXS
2.1	Remove rear PTS ultrasonic sensor (B8/7, B8/8, B8/9 and B8/10)	Only with code (220) Parktronic system (PTS) Installation:  Ensure that sealing rings on rear PTS ultrasonic sensors (B8/7, B8/8, B8/9 and B8/10) are seated correctly.
3.1	Remove right inner radar sensor, rear bumper (A86/2b2) and left inner radar sensor, rear bumper (A86/2b3)	Only with code (229) Park assistant
4.1	Unclip rear bumper Keyless Go antenna (A2/99) and disconnect electrical connector	Only with code (889) Keyless Go
5	Remove towing eye cover (3)
6.1	Expose wiring harness (4) and remove	Only with code (220) Parktronic system (PTS) or code (229) Park assistant or code (889) Keyless Go
7	Remove bracket (2)
8	Remove clips (7)	Installation:  Check clips (7), replace if necessary
9	Remove left and right inner section (6) with mounting rail (5).
10	Unclip mounting rail (5) from left and right inner section (6).
11	Assemble in the reverse order