Remove/Install Rear Suspension Strut - AR32.25-P-1016SA
Model 223
with code 490 (Electrohydraulic suspension)
except code Z07 (B7 armoring on special protection version)
MODIFICATION NOTES
| 09.09.2021 | Screw, hydraulic line to suspension strut | BA32.50-P-1006-04B | |
| 17.11.2021 | Screw, spring control arm to wheel carrier | Model 223.0/9 model 223.1 except code ME10 (Hybrid vehicle (plug-in, PHEV)) except code Z07 (B7 armoring on special protection version) | BA35.20-P-1001-01J |
| 17.11.2021 | Screw, spring control arm to wheel carrier | Model 223.1 with code ME10 (Hybrid vehicle (plug-in, PHEV)) | BA35.20-P-1001-01J |
Shown on left side of vehicle
Shown on left side of vehicle
Fig 1: Rear Suspension Strut Components Location - Model 223 With Code 490 Except Z07 (Shown On Left Side Of Vehicle)
| Risk of injury to skin or eyes from hydraulic fluid spraying out under pressure. Risk of poisoning from swallowing hydraulic fluid. | Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses. | AS00.00-Z-0013-01A | |
| Notice | Notes on threaded connections fastened using a tightening angle-based tightening process | AH00.00-P-0020-01A | |
| Notice | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Notice | Notes on self-locking nuts and bolts | AH00.00-P-0001-01KOA | |
| Notice | Information on E-ACTIVE BODY CONTROL suspension | AH32.50-P-0002-01ME | |
| Notice | Notes on air suspension | AH32.22-P-1000-01T | |
| Notes on repair work on suspension components | AH00.00-P-0100-01A | ||
| Notes on safety-relevant components | AH00.00-Z-0019-01A | ||
| Remove/install | |||
| 1 | Remove corresponding rear wheel. | AR40.10-P-1102A | |
| 2 | Reduce pneumatic pressure of suspension struts (9) using diagnostic system. | ||
The complete wheels must not touch the ground. Otherwise the suspension struts (9) can be damaged and subsequently malfunction. |
AD00.00-P-2000-06FR | ||
| 3 | Empty hydraulic lines (7) of electrohydraulic suspension using guided diagnosis. | AR32.50-P-0042S | |
| 4 | Switch off ignition and store transmitter key outside of transmitter range (min. 2 m). | ||
| 5 | Unclip speaker cover from rear shelf (1). | Fig 2 | |
| 6 | Remove mid-range speaker. | Model 223 with code 490 (Electrohydraulic suspension) with code 810 (Premium sound system) except code Z07 (B7 armoring on special protection version) Model 223 with code 490 (Electrohydraulic suspension) with code 811 (High-End sound system) except code Z07 (B7 armoring on special protection version) |
AR82.62-P-7836S |
| 7 | Remove cover above damping (2). | ||
| 8 | Separate perforation (arrows A) on rear shelf (1) and remove sections. | ||
| 9 | Detach perforation (arrows B) and remove damping (2). | The damping (2) must always be installed. Otherwise, noise will be heard. |
|
| 10 | Detach pressure line (3) from suspension strut (9) and seal openings with suitable stop plugs. | *BA32.22-P-1011-03F | |
| Fig 4 | |||
| Fig 3 | |||
| 11 | Remove cover from spring link (5). | ||
| 12 | Disconnect electrical connectors (6) and expose electric lines. | ||
| 13 | Clean connections of hydraulic lines (7). | ||
| 14 | Remove hydraulic lines (7) from suspension strut (9) and seal openings with suitable stop plugs. | *BA32.50-P-1006-04B | |
| Fig 3 | |||
| 15 | Loosen threaded connection securing spring link (5) to rear axle carrier (8). | *BA35.20-P-1003-01J | |
| 16 | Remove suspension strut (9) from spring link (5). | *BA32.25-P-1005-04O | |
| 17 | Remove spring link (5) from wheel carrier (10). | *BA35.20-P-1001-01J | |
| 18 | Fold spring link (5) downward. | Fold the spring link (5) downward carefully. Otherwise the wheel carrier (10) will be damaged. |
|
| 19 | Lower vehicle. | Do not lower vehicle too far. Otherwise the folded-down spring link (5) will be damaged. |
|
| 20 | Remove nuts (4) and take out suspension strut (9) in downward direction. | *BA32.25-P-1004-04O | |
| Check | |||
| 21 | Check suspension strut (9). | ||
| If there is a problem, ↓ replace suspension strut (9). |
AP32.25-P-3255K | ||
| 22 | Check pressure line (3) for damage. | If there is a problem, ↓ repair pressure line connection. |
|
| AR32.22-P-2001-01S | |||
| Fig 5 | |||
| Fig 6 | |||
| Fig 4 | |||
| 23 | Install in the reverse order. |
AIR SUSPENSION
| Number | Designation | Model 223 | |
|---|---|---|---|
| BA32.22-P-1011-03F | Pressure line to rear suspension strut/valve block | Nm | 2 |
SUSPENSION STRUTS
| Number | Designation | Model 223 except code Z07 (B7 armoring on special protection version) | ||
|---|---|---|---|---|
| BA32.25-P-1004-04O | Screw/nut, suspension strut at rear to body | Stage 1 | Nm | 50 |
| Stage 2 | Nm | - | ||
SUSPENSION STRUTS
| Number | Designation | Model 223 except code Z07 (B7 armoring on special protection version) | ||
|---|---|---|---|---|
| BA32.25-P-1005-04O | Nut, suspension strut at rear to spring control arm | Stage 1 | Nm | 150 |
| Stage 2 | ∠° | 45 | ||
ELECTROHYDRAULIC SUSPENSION
| Number | Designation | Model 223 with code 490 (Electrohydraulic suspension) | ||
|---|---|---|---|---|
| BA32.50-P-1006-04B | Screw, hydraulic line to suspension strut | Stage 1 | Nm | 18 |
| Stage 2 | ∠° | 45 | ||
SPRING CONTROL ARM
| Number | Designation | Model 223.0/9 Model 223.1 except code ME10 (Hybrid vehicle (plug-in, PHEV)) except code Z07 (B7 armoring on special protection version) | Model 223.1 with engine 177.8 with code ME10 (Hybrid vehicle (plug-in, PHEV)) | |||
|---|---|---|---|---|---|---|
| BA35.20-P-1001-01J | Screw, Spring control arm to wheel carrier | M14 | Stage 1 | Nm | 60 | 80 |
| Stage 2 | ∠° | 180 | 90 | |||
SPRING CONTROL ARM
| Number | Designation | Model 223.1 with engine 256 with code ME10 (Hybrid vehicle (plug-in, PHEV)) | |||
|---|---|---|---|---|---|
| BA35.20-P-1001-01J | Screw, Spring control arm to wheel carrier | M14 | Stage 1 | Nm | 80 |
| Stage 2 | ∠° | 90 | |||
SPRING CONTROL ARM
| Number | Designation | Model 223.0/9 Model 223.1 except code ME10 (Hybrid vehicle (plug-in, PHEV)) except code Z07 (B7 armoring on special protection version) | Model 223.1 with engine 177.8 with code ME10 (Hybrid vehicle (plug-in, PHEV)) | |||
|---|---|---|---|---|---|---|
| BA35.20-P-1003-01J | Screw, Spring control arm to rear axle carrier | M12 | Stage 1 | Nm | 60 | 60 |
| Stage 2 | ∠° | 180 | 90 | |||
| M16 | Nm | - | - | |||
SPRING CONTROL ARM
| Number | Designation | Model 223.1 with engine 256 with code ME10 (Hybrid vehicle (plug-in, PHEV)) | |||
|---|---|---|---|---|---|
| BA35.20-P-1003-01J | Screw, Spring control arm to rear axle carrier | M12 | Stage 1 | Nm | 60 |
| Stage 2 | ∠° | 180 | |||
| M16 | Nm | - | |||