Disassemble/Assemble Front Bumper - AR88.20-P-2050GQB

MODEL 166.0 as of model year 2016 

MODEL 166.8 (except 166.874) as of model year 2016 

MODEL 292 except CODE 772 (AMG styling package - front spoiler, side skirts and rear apron) 

Shown on model 166.0 as of model year 2016 

Shown on model 166.0 as of model year 2016 

Shown on model 166.0 as of model year 2016 

Shown on model 166.0 as of model year 2016 

Shown on model 292 

Shown on MODEL 292 

	General information on the impact absorber		AH88.20-P-1000-01A
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove
1	Remove front bumper (1)	Model 292 except code 772 (AMG styling package - front spoiler, side skirts and rear apron)	AR88.20-P-2000GQC
		Model 166 (except 166.874) as of model year 2016	AR88.20-P-2000GQ
	Disassemble/assemble
2	Set down front bumper (1) on a suitable base
3	Remove radiator grille (2)		AR88.40-P-4001GQ
4	Remove license plate and license plate bracket from front bumper (1)
5.1	Unclip impact absorber (3)	Model 166.0, 166.8 (except 166.874) as of model year 2016 except code 233 (DISTRONIC PLUS) Model 292 except code 233 (DISTRONIC PLUS) except code 772 (AMG styling package - front spoiler, side skirts and rear apron)
5.2	Remove pedestrian protection sensors (4) with impact absorber (3)	Model 166.0, 166.8 (except 166.874) as of model year 2016 with code 233 (DISTRONIC PLUS) with code U60 (Active Bonnet (Pedestrian protection)) Model 292 with code 233 (DISTRONIC PLUS) with code U60 (Active Bonnet (Pedestrian protection)) except code 772 (AMG styling package - front spoiler, side skirts and rear apron)	AR91.60-P-0950GQC
6.1	Remove radar sensor (5)	Model 166 (except 166.874) as of model year 2016 with code 233 (DISTRONIC PLUS) Model 292 with code 233 (DISTRONIC PLUS) except code 772 (AMG styling package - front spoiler, side skirts and rear apron) Perform work on left and right side of front bumper (1) analogously.	AR30.30-P-1210GQA
6.2	Remove COLLISION PREVENTION ASSIST control unit	Model 166 (except 166.874) as of model year 2016 with code 258 (COLLISION PREVENTION ASSIST) Model 292 with code 258 (COLLISION PREVENTION ASSIST) except code 772 (AMG styling package - front spoiler, side skirts and rear apron) Perform work on left and right side of front bumper (1) analogously.	AR54.70-P-0002GQC
7	Remove front parking system distance sensors (6) in front bumper (1)	Model 166.0, 166.8 (except 166.874) as of model year 2016 with code 220 (PARKTRONIC) with code 235 (Active Parking Assist with PARKTRONIC) Model 292 with code 235 (Active Parking Assist with PARKTRONIC) except code 772 (AMG styling package - front spoiler, side skirts and rear apron) Perform work on left and right side of front bumper (1) analogously.	AR54.65-P-0001GQC
8	Disconnect electrical connectors from outside temperature sensor (9)
9	Unclip outside temperature sensor (9)
10	Unclip front bumper electrical wiring harnesses (7) from front bumper (1) and remove	The number of electrical lines varies depending on the vehicle equipment.
11	Unclip cover (8) from front bumper	Perform work on left and right side of front bumper (1) analogously. Mounting wedge	Figure
12	Remove expansion rivets (13)	Model 166.0, 166.8 (except 166.874) as of model year 2016 Clip remover	Figure
13	Unclip lower carrier (11) and lower paneling (12) with suitable tool
14	Unscrew bolts (14) on left and right sides	Model 166.0, 166.8 (except 166.874) as of model year 2016
15	Bend open sheet metal clip (23) with suitable tool and remove	Model 166.0, 166.8 (except 166.874) as of model year 2016 Replace sheet metal clips (23).
16	Unclip lower basic carrier (15)	Model 166.0, 166.8 (except 166.874) as of model year 2016 Mounting wedge	Figure
17	Unclip front bumper in lower area (24)	Model 292 except code 772 (AMG styling package - front spoiler, side skirts and rear apron) The front bumper lower area (24) consists of a lower basic carrier (15), cover grill (25), cover in underride guard bumper area (26), cover in bumper lower left area (27) and cover in bumper lower right area (28). Mounting wedge	Figure
18	Lay front bumper lower area (24) down on suitable base	Model 292 except code 772 (AMG styling package - front spoiler, side skirts and rear apron)
19	Unclip cover in bumper lower left area (27) and remove	Model 292 except code 772 (AMG styling package - front spoiler, side skirts and rear apron) Mounting wedge	Figure
20	Unclip cover in bumper lower right area (28) and remove	Model 292 except code 772 (AMG styling package - front spoiler, side skirts and rear apron) Mounting wedge	Figure
21	Unclip cover in underride guard bumper area (26) from lower basic carrier (15) and remove	Model 292 except code 772 (AMG styling package - front spoiler, side skirts and rear apron) Mounting wedge	Figure
22	Unclip cover in underride guard bumper area (26) from cover grill (25) and remove	Model 292 except code 772 (AMG styling package - front spoiler, side skirts and rear apron) Mounting wedge	Figure
23	Remove bolts (17)	Model 166.0 as of model year 2016
24	Unclip catch tab (18) with suitable tool	Model 166.0, 166.8 (except 166.874) as of model year 2016
25	Unclip covers (16)	Model 166.0, 166.8 (except 166.874) as of model year 2016 Mounting wedge	Figure
26	Unclip lower radiator grille (19)	Model 166.0, 166.8 (except 166.874) as of model year 2016 Mounting wedge	Figure
27	Unclip upper basic carrier (20)	Mounting wedge	Figure
28	Lay upper basic carrier (20) down on suitable base	Model 292 except code 772 (AMG styling package - front spoiler, side skirts and rear apron)
29	Unclip left basic carrier cover (29) and remove	Model 292 except code 772 (AMG styling package - front spoiler, side skirts and rear apron) Mounting wedge	Figure
30	Unclip right basic carrier cover (30) and remove	Model 292 except code 772 (AMG styling package - front spoiler, side skirts and rear apron) Mounting wedge	Figure
31	Unclip expansion rivet (10) with suitable tool	Model 166.0, 166.8 (except 166.874) as of model year 2016 Perform work on left and right side of front bumper (1) analogously. Clip remover	Figure
32	Drill out rivet (21) on left and right side	Model 166.0, 166.8 (except 166.874) as of model year 2016
33	Unclip cover (22) on left and right side	Model 166.0, 166.8 (except 166.874) as of model year 2016 Mounting wedge	Figure
34	Assemble in the reverse order
	Install
35	Install front bumper (1)	Model 292 except code 772 (AMG styling package - front spoiler, side skirts and rear apron)	AR88.20-P-2000GQC
		Model 166.0, 166.8 (except 166.874) as of model year 2016	AR88.20-P-2000GQ

Fig 1: Identifying Clip Remover (452 589 01 63 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Mounting Wedge (110 589 03 59 00)

Courtesy of MERCEDES-BENZ USA