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Remove/Install Rear Shock Absorber - AR32.25-P-0110FRX

Model 290 

MODIFICATION NOTES

24.01.2024 Self-locking nut, shock absorber to spring link   BA32.25-P-1001-03P

Shown on left side of vehicle except code 498 (AIR BODY CONTROL) 

Fig 1: Rear Shock Absorber Components Location - Model 290 (Shown On Left Side Except Code 498)
G16553433Courtesy of MERCEDES-BENZ USA
G16553434Courtesy of MERCEDES-BENZ USA

Shown on model with code 489 (AIR BODY CONTROL) and except code 201 (Rear axle steering) 

G16553435Courtesy of MERCEDES-BENZ USA
WARNING Risk of injury  . Moving parts can pinch, crush or, in extreme cases even sever extremities. No parts of the body or limbs should be within the operating area of mechanical components when moving components. AS00.00-Z-0009-01A
Notice  Notes on handling, transport and storage of ceramic brake disks   AH42.10-P-9406-13A
Notice  Notes on handling, transport and storage of composite brake disks   AH42.10-P-9406-12LF
Notice  Notes on AIR BODY CONTROL Model 290
with code 489 (AIR BODY CONTROL)
AH32.22-P-1000-03LWO 
Notice  Notes on self-locking nuts and bolts   AH00.00-P-0001-01KOA
  Notes on repair work on suspension components   AH00.00-P-0100-01A
REMOVINGINSTALLING Remove/install     
1 Remove corresponding rear wheel.   AR40.10-P-1102A
2 Remove cover from spring link (6).    
3 Unfasten fender liner in rear fender in area of shock absorber (4).   AR88.10-P-1302FR
4 Disconnect electrical connectors at shock absorber (4).    
5 Unscrew nut from screw (5).    
Notice  Notes on threaded connections fastened using a tightening angle-based tightening process   AH00.00-P-0020-01A
    TORQUE SPECIFICATION Self-locking nut, shock absorber to spring control arm *BA32.25-P-1001-03P 
6 Support spring link (6) with a suitable hydraulic lifting device and remove screw (5) from spring link (6).    
7 Unscrew screws (7). TORQUE SPECIFICATION Bolt, shock absorber to body *BA32.25-P-1002-03P 
8.1 Press shock absorber (4) together and remove upward. Model 290
with code 201 (Rear axle steering)
INSTALLATION IMPORTANT : Ensure that the cutouts (arrows a) in suspension strut mount (12) match with the elevations (arrows b) in the body
 
8.2 Press shock absorber (4) together as shown with tension belt (3) and remove upward. Model 290
except code 201 (Rear axle steering)
NOTES
Ensure that the surface of the shock absorber (4) is not damaged by the ratchet wrench (2) of the tension belt (3).
Otherwise the shock absorber (4) must not be reused.
 
    INSTALLATION IMPORTANT : Ensure that the cutouts (arrows a) in suspension strut mount (12) match with the elevations (arrows b) in the body  
INSPECT Check     
9 Check shock absorber (4) for damage and leakage. If there is a problem:

Replace shock absorber (4).
 
10 Check suspension strut mount (12) and seal (13) for damage. If there is a problem:

Replace shock absorber (4).
 
11 Install in reverse order.    
REAR AXLE SHOCK ABSORBER

Number Designation Model 290
BA32.25-P-1001-03P Self-locking nut, shock absorber to spring control arm Air suspension Stage 1 Nm 100
Stage 2 ∠° 90
Steel suspension M12 Stage 1 Nm 100
Stage 2 ∠° 90
M10 Stage 1 Nm  
Stage 2 ∠°  
REAR AXLE SHOCK ABSORBER

Number Designation Model 290
1BA32.25-P-1002-03P Bolt, shock absorber to body Stage 1 Nm 15
Stage 2 Nm 36