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Home >> Mercedes Benz >> 2019 >> S450 Base >> Repair and Diagnosis >> Suspension >> Front Suspension >> Suspension - 222 Chassis (1 Of 2) >> Testing & Repair >> Remove/Install Front Suspension Strut >> Remove/Install Front Suspension Strut - AR32.25-P-1017LFB

Remove/Install Front Suspension Strut - AR32.25-P-1017LFB

Model 217 

except code 487 (Active Body Control (ABC)) 

Model 222 

except code 487 (Active Body Control (ABC)) 

MODIFICATION NOTES

30.04.2018 Nut, front suspension strut to spring control arm Model 222 with code Z07 (Highest protection) BA32.25-P-1002-04O
Fig 1: Front Suspension Strut Components Location - Model 222 Except Code 487
G15367107Courtesy of MERCEDES-BENZ USA

Shown on MODEL 222 on right side of vehicle 

G15367108Courtesy of MERCEDES-BENZ USA

Shown on model 222 

DANGER Risk of death  caused by vehicle slipping or toppling off during lifting Only lift vehicle at the lift support points specified by the vehicle manufacturer. AS00.00-Z-0032-01A
DANGER 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
Notice  Notes on self-locking nuts and bolts   AH00.00-P-0001-01KOA
  Notes on AIRmatic   AH32.22-P-1000-02LF 
  Notes on repair work on suspension components   AH00.00-P-0100-01A
REMOVINGINSTALLING Remove/install     
1 Vent pressure in AIRmatic system using diagnostic system    
      AD00.00-P-2000-04B
WARNING Risk of injury  caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof. No parts of the body or limbs should be within the operating area when the components are moving. AS00.00-Z-0011-01A
2 Open and secure engine hood    
3 Detach corresponding front complete wheel   AR40.10-P-1102A
4 Disconnect electrical connector (1) at suspension strut (2)    
5 Open cable duct (3) on suspension strut (2) and place to one side    
6 Open holder (4) and unhook brake hose    
7 Secure steering knuckle (5) to prevent it from folding down    
8 Detach transverse control arm from steering knuckle (5)   AR33.20-P-0500LF
9 Detach torsion bar linkage (6) from steering knuckle (5) TORQUE SPECIFICATION Model 217
except code 487 (Active Body Control (ABC))
Model 222
except code 487 (Active Body Control (ABC)) except code Z07 (B7 armoring on special protection version)
Model 222
with code Z07 (B7 armoring on special protection version)
except code 487 (Active Body Control (ABC)) Nut, torsion bar linkage to steering knuckle
*BA32.20-P-1002-02O 
10 Detach suspension strut (2) from spring link (7) INSTALLATION IMPORTANT Insertion direction of screw/bolt (8):
Screw/bolt (8) must be inserted from the front.
 
    TORQUE SPECIFICATION Model 217
except code 487 (Active Body Control (ABC))
Model 222
except code 487 (Active Body Control (ABC))
except code Z07 (B7 armoring on special protection version)
Model 222
with code Z07 (B7 armoring on special protection version)
except code 487 (Active Body Control (ABC)) Nut, suspension strut at front to spring control arm
*BA32.25-P-1002-04O 
11 Remove corresponding covers (9) from suspension strut tower    
12 Detach pressure line (10) from corresponding suspension strut (2) TORQUE SPECIFICATION Pressure line to front suspension strut/valve block Pressure line to front suspension strut/valve block
If pressure line connection is damaged

Repair pressure line connection
*BA32.22-P-1010-03F 
      AR32.22-P-2001-02SX 
    Leak detection spray *BR00.45-Z-1002-03A 
    SPECIAL TOOL Socket wrench bit Fig 2
    SPECIAL TOOL Knife Fig 3
13 Detach cover lining (11) and place to one side    
14 Unscrew nuts from corresponding suspension strut (2) SPECIAL TOOL Model 217
except code 487 (Active Body Control (ABC))
Model 222
except code 487 (Active Body Control (ABC))
except code Z07 (B7 armoring on special protection version)
Model 222
with code Z07 (B7 armoring on special protection version)
except code 487 (Active Body Control (ABC)) Nut, suspension strut at front to body
*BA32.25-P-1001-04 
15 Remove suspension strut (2) downwards    
16 Detach bracket (4) from suspension strut (2) When replacing suspension strut (2).
INSTALLATION IMPORTANT Replace cable tie and fasten in place using pliers SPECIAL TOOL
 
INSPECT Check     
17 Check condition of suspension strut (2) When reinstalling suspension strut (2) If damaged or worn

Replace suspension strut (2)
IMPORTANT Dispose of the damaged suspension strut (2) correctly.
 
18 Check condition of suspension strut joint on spring control arm (7) If damaged or worn

Replace suspension strut joint
 
      AR33.15-P-0115LF
19 Measure length of suspension strut (2) INSTALLATION IMPORTANT Compare the measured length of the suspension strut (2) with the leaflet for the new suspension strut (2). If dimension differs

Do not install suspension strut (2); replace with a new suspension strut (2)
 
20 Install in the reverse order    
21 Check AIRmatic system for leak tightness   AR32.22-P-8100LF 
FRONT AXLE TORSION BAR

Number Designation Model 217 MODEL 222 with CODE Z07
BA32.20-P-1002-02O Nut, torsion bar linkage to steering knuckle Nm 60 60
FRONT AXLE TORSION BAR

Number Designation MODEL 222 except CODE Z07
BA32.20-P-1002-02O Nut, torsion bar linkage to steering knuckle Nm 60
AIR SUSPENSION

Number Designation Model 217 Model 222
BA32.22-P-1010-03F Pressure line to front suspension strut/valve block Nm 2 2
SUSPENSION STRUTS

Number Designation Model 217 Model 222 with code Z07 (B7 armoring on special protection version)
BA32.25-P-1001-04O Nut, suspension strut at front to body Nm 50 50
SUSPENSION STRUTS

Number Designation Model 222 except code Z07 (B7 armoring on special protection version)
BA32.25-P-1001-04O Nut, suspension strut at front to body Nm 50
SUSPENSION STRUTS

Number Designation Model 217 Model 222 with code Z07 (B7 armoring on special protection version)
BA32.25-P-1002-04O Nut, suspension strut at front to spring control arm Stage 1 Nm 120 150
Stage 2 ∠° 45 45
SUSPENSION STRUTS

Number Designation Model 222 except code Z07 (B7 armoring on special protection version)
BA32.25-P-1002-04O Nut, suspension strut at front to spring control arm Stage 1 Nm 120
Stage 2 ∠° 45
Fig 2: Identifying Socket Wrench Bit (211 589 00 09 00)
G14172724Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Knife (000 589 12 28 00)
G09980728Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Pliers (164 589 01 37 00)
G13845730Courtesy of MERCEDES-BENZ USA
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1002-03A Leak detection spray Christof Fischer GmbH
http://www.kaeltefischer.de