Disassemble/assemble front bumper - AR88.20-P-2050RT

MODEL 251 

Fig 1: Identifying Front Bumper Disassemble/Assemble Components (1 Of 5)

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Fig 2: Identifying Front Bumper Disassemble/Assemble Components (2 Of 5)

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Fig 3: Identifying Front Bumper Disassemble/Assemble Components (3 Of 5)

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Fig 4: Identifying Front Bumper Disassemble/Assemble Components (4 Of 5)

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Fig 5: Identifying Front Bumper Disassemble/Assemble Components (5 Of 5)

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MODIFICATION NOTES

9.8.10

Modify bumper cover

Step 21

AR88.20-P-2000-04RT

	Removing
1	Remove front fog lamps		AR82.10-P-5103RT
2	Remove front bumper		AR88.20-P-2000RT
	Disassemble
3	Disconnect electrical connector (1)	Only on vehicles with code (494) USA version On both sides
4	Press retaining clamps (2) toward inside and remove left front side marker lamp {{USA}} (E6/1) and right front side marker lamp {{USA}} (E6/2)	Only on vehicles with code (494) USA version On both sides
5	Unclip electrical connector (4) from bumper inner section (16).	Only on vehicles with code (220) Parktronic system (PTS).
6	Unclip outside temperature indicator temperature sensor (5) from air inlet grate (22).
7	Disconnect electrical connector (6)	On both sides
8	Unscrew nuts (7) and remove parking lamp (8)	On both sides
9	Unclip electrical connector (9) from bumper inner section (16).
10	Remove PTS ultrasonic sensors (B8/1, B8/2, B8/3, B8/4, B8/5, B8/6) in front bumper	Only on vehicles with code (220) Parktronic system (PTS). Check sealing ring, replace if damaged.	AR54.65-P-0001RT
		Unlocking tool	Fig 7
11	Remove wiring harnesses (10) from wiring harness clip (11) and remove from bumper inner section (16).	Route wiring harnesses (10) into corresponding recesses.
12	Remove expansion rivets (12) from bumper paneling (21).
13	Remove expansion rivets (13) from bumper inner section (16).
14	Unclip clip for upper inner connection section (14) from bumper paneling (21).	Ensure that clip for upper inner connection section (14) is seated correctly in bumper paneling (21).
15	Unclip clips for bottom inner connection section (15) from bumper paneling (21)	Ensure that clip for bottom inner connection section (15) is seated correctly in bumper paneling (21).
16	Remove bumper inner section (16)
17	Lift lugs and remove impact absorber (20)	The impact absorber (20) is arrested with a retaining lug
18	Remove expansion rivets (17) and remove left and right telescoping nozzle cover (18) from bumper paneling (21, arrow).	Only on vehicles with code (600) Headlamp cleaning system Ensure that retaining lugs (19) are seated properly in bumper paneling (21).
19	Unclip air inlet grate (22) on catch hook (23) from bumper paneling and remove	Mounting wedge	Figure
20	Press retaining clips (24) toward inside and remove tow eye cover (25).	Ensure that retaining strip (26) is seated correctly in bumper paneling (21).
	Modify
21	Modify bumper paneling (21)	Only on vehicles with chrome-plated underride guard	AR88.20-P-2000-04RT
	Assemble
22	Assemble in the reverse order
	Install
23	Install front bumper		AR88.20-P-2000RT
24	Install front fog lamps		AR82.10-P-5103RT

Fig 6: Identifying Mounting Wedge (110 589 03 59 00)

Courtesy of MERCEDES-BENZ USA

Fig 7: Identifying Unlocking Tool (168 589 02 31 00)

Courtesy of MERCEDES-BENZ USA