Remove/install front bumper - AR88.20-P-2000NKB
MODEL 117, 176, 242, 246
Shown on model 246
Shown on model 246 with CODE 614 (Bi-Xenon headlamp unit)
Shown on model 117
Shown on model 176 up to model year 2016
| Risk of injury due to fan starting unexpectedly | Do not reach into the rotation or hazard area of the fan. Wear closed and close-fitting work clothes. | AS20.40-Z-0001-01A | |
| Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | ||
| General information on the impact absorber | AH88.20-P-1000-01A | ||
| Remove/install | |||
| 1 | Disconnect battery ground line | Model 117, 176 with code U60 (Active Bonnet (Pedestrian protection)) |
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| AR54.10-P-0003NKB | |||
| Risk of death caused by vehicle slipping or toppling off of the lifting platform. | Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer. | AS00.00-Z-0010-01A | |
| 2 | Lift vehicle on vehicle lift | AR00.60-P-1000AK | |
| 3 | Unscrew two outer bolts (2) on right and left from paneling (3) | ||
| 4 | Unscrew all other bolts (2) from paneling (3) | Model 176 with code 772 (AMG styling package - front spoiler, side skirts and rear apron) |
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| 5 | Remove expansion rivet (4) from paneling (3) | ||
| 6 | Remove expansion rivet (4) from left and right fender liner (5) | ||
| 7 | Slightly lift left and right fender liner (5) from front bumper (1) and unscrew bolts (6) | ||
| 8 | Turn electrical connector (7) on front bumper (1) 45°, unhook and disconnect | ||
| 9 | Pull outside temperature sensor (12) out of front bumper (1) | ||
| 10 | Disconnect electrical connectors (8, 10) from left daytime running lights (11) and right daytime running lights (9) | Model 117, 246 with code 257 (round LED daytime running lamps) Model 176 up to model year 2016 with code 257 (round LED daytime running lamps) Model 242, 246 with code 240 (LED-Daytime running lights ) |
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| 11 | Disconnect electrical connectors from front fog lamps | Model 117, 246 with code U37 (Front fog lamps) Model 176 up to model year 2016 with code U37 (Front fog lamps) |
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| 12 | Remove front bumper (1) until electrical connectors on right front bumper pedestrian protection sensor (19) and left front bumper pedestrian protection sensor (20) are accessible | Model 117, 176 with code U60 (Active Bonnet (Pedestrian protection)) |
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| 13 | Disconnect connector from left front bumper pedestrian protection sensor (19) and right front bumper pedestrian protection sensor (20) | Model 117, 176 with code U60 (Active Bonnet (Pedestrian protection)) |
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| 14 | Loosen left lip and right lip until outer bolts (13) are accessible | Model 176 as of model year 2016 |
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| 15 | Remove screws (13) | ||
| 16 | Unclip covers (21) at transition between fender and front bumper (1) on left and right and lift slightly until bolts (22) are accessible | Model 117 | |
| 17 | Unscrew bolts (22) on left and right sides | Model 117 | |
| 18 | Pull radiator grille (15) with extraction hook (16) out of brackets | Model 117, 242, 246 Model 176 up to model year 2016 |
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| Fig 8 | |||
| 19 | Remove front bumper (1) | ||
| 20 | Install in the reverse order | ||
| Check | |||
| 21 | Remove right front bumper pedestrian protection sensor (19) and left front bumper pedestrian protection sensor (20) | ||
| Notes on pedestrian protection sensor | AH91.60-P-0001-01A | ||
| Check freely visible points for damage of any kind (cracks, holes, breakovers, etc.) when installed. ↓ If damage is visible, always replace right front bumper pedestrian protection sensor (19) or left front bumper pedestrian protection sensor (20). |
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| Model 117, 176 as of model year 2016 with code U60 (Active Bonnet (Pedestrian protection)) |
AR91.60-P-0950NKA | ||
| 22 | Check gap dimensions on front bumper (1) and adjust if necessary | Model 176 Model 242 Model 246 as of model year 2015 Model 246 up to model year 2015 Gap dimension |
*BE60.00-P-1001-01AA |
| Model 117.3 Model 117.9 Gap dimension |
*BE60.00-P-1003-01ZA | ||
| Model 117.3 Model 117.9 Gap dimension |
*BE60.00-P-1006-01ZA | ||
| Figure | |||
| 23 | Check whether PARKTRONIC or active parking assist is ready for operation | ||
| 24 | Switch on ignition and PARKTRONIC, engage reverse gear and release parking brake |
TEST AND ADJUSTMENT VALUES FOR GAP DIMENSIONS
| Number | Designation | Model 176 | MODEL 242, MODEL 246 up to model year 2015 | |||
|---|---|---|---|---|---|---|
| BE60.00-P-1001-01AA | Gap dimension | Engine hood to fender | Dimension "A" | mm | 4, 0 (+1/-1, 5) | 4, 0 (+1/-1, 5) |
| Engine hood to headlamp | Dimension "B" | mm | 4, 0 (±1) | 4, 0 (±1) | ||
| Engine hood to bumper | Dimension "C" | mm | 4, 0 (±1) | 4, 0 (±1) | ||
| Fender to headlamp | Dimension "D" | mm | 4, 0 (+1/-1, 5) | 4, 0 (+1/-1, 5) | ||
| Bumper to headlamp (circumferential) | Dimension "E" | mm | 4, 0 (+1/-1, 5) | 4, 0 (+1/-1, 5) | ||
| Reinforcement to engine hood (exterior) | Dimension "F" | mm | - | 39, 5 (-1) | ||
| Fender to A-pillar | Dimension "G" | mm | 3, 5 (±1) | 3, 0 (±1) | ||
| Picture | AR60.00-P-0700-01NKB | AR60.00-P-0700-01NKB | ||||
TEST AND ADJUSTMENT VALUES FOR GAP DIMENSIONS
| Number | Designation | Model 246 as of model year 2015 | |||
|---|---|---|---|---|---|
| BE60.00-P-1001-01AA | Gap dimension | Engine hood to fender | Dimension "A" | mm | 3, 5 (±1, 0) |
| Engine hood to headlamp | Dimension "B" | mm | 2, 9 (±1, 3) | ||
| Engine hood to bumper | Dimension "C" | mm | 3, 0 (±1, 0) | ||
| Fender to headlamp | Dimension "D" | mm | 2, 4 (±1, 3) | ||
| Bumper to headlamp (circumferential) | Dimension "E" | mm | 2, 0 (±1, 2) | ||
| Reinforcement to engine hood (exterior) | Dimension "F" | mm | 39, 5 (-1) | ||
| Fender to A-pillar | Dimension "G" | mm | 1, 8 (±1, 0) | ||
| Picture | AR60.00-P-0700-01NKB | ||||
TEST AND ADJUSTMENT VALUES FOR GAP DIMENSIONS
| Number | Designation | Model 117.3 | Model 117.9 | |||
|---|---|---|---|---|---|---|
| BE60.00-P-1003-01ZA | Gap dimension | Engine hood to bumper | Dimension "C" | mm | 4, 0 (±1) | 4, 0 (±1, 0) |
| For picture, see | AR60.00-P-0700-01NKC | AR60.00-P-0700-01NKC | ||||
TEST AND ADJUSTMENT VALUES FOR GAP DIMENSIONS
| Number | Designation | Model 117.3 | Model 117.9 | |||
|---|---|---|---|---|---|---|
| BE60.00-P-1006-01ZA | Gap dimension | Bumper to headlamp (circumferential) | Dimension "E" | mm | 3, 5 (+1, 5/-2, 0) | 3, 5 (±1, 5) |
| For picture, see | AR60.00-P-0700-01NKC | AR60.00-P-0700-01NKC | ||||