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Home >> Mercedes Benz >> 2022 >> CLS450 >> Repair and Diagnosis >> Suspension >> Front Suspension >> Front Axle - 257 Chassis >> Testing & Repair >> Remove/Install Torque Strut At Front Axle >> Remove/Install Torque Strut At Front Axle - AR33.15-P-0160FRA

Remove/Install Torque Strut At Front Axle - AR33.15-P-0160FRA

Model 257 

with code M005 (Vehicles with 4MATIC/all-wheel drive) 

G14548551Courtesy of MERCEDES-BENZ USA

Shown on left side of vehicle 

Notice Notes on handling, transport and storage of composite brake disks   AH42.10-P-9406-12LF
Notice Notes on threaded connections fastened using a tightening angle-based tightening process   AH00.00-P-0020-01A
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
REMOVING Remove     
1 Remove center and front engine compartment lining   AR61.20-P-1105FR
2 Remove left or right front wheel   AR40.10-P-1102A
3 Unscrew nut (2) from strut rod (1) NOTES
The ball head must be counterheld and an impact wrench/driver must not be used. Otherwise the ball head or steering knuckle (4) becomes damaged.
 
4.1 Turn steering completely to the right When removing the left strut rod (1).  
4.2 Turn steering completely to the left When removing the right strut rod (1).  
5 Remove strut rod (1) from steering knuckle (4)    
6 Unscrew nut (3), remove bolt (7) and remove strut rod (1) from front axle carrier (5)    
INSPECT Check     
7 Check seal bellows and ball head of strut rod (1) for damage If damage is present

Replace strut rod (1).
 
8.1 Check whether an elastomer bearing is installed in the previously installed strut rod (1) for caster correction. When replacing the strut rod (1).

IMPORTANT The elastomer bearing for caster correction has an off-center bearing core.
If an elastomer bearing for caster correction is installed.

Remove elastomer bearing of new strut rod (1) and install a corresponding elastomer bearing for caster correction.
 
      AR33.15-P-0163-01FR 
    SPECIAL TOOL Plate Fig 2
    SPECIAL TOOL Extraction and insertion tool Fig 1
    SPECIAL TOOL Extraction and installation tool Fig 3
8.2 Check elastomer bearing in the strut rod (1) for damage When reusing the strut rod (1).  
  Evaluation of elastomer bearings   AH00.10-P-0001-01A
    IMPORTANT The neutral elastomer bearing has a central bearing core.
The elastomer bearing for caster correction has an off-center bearing core.
In the event of damage, if a neutral (genuine) elastomer bearing is installed.

Replace strut rod (1).
In the event of damage, if an elastomer bearing is installed for caster correction.

Replace elastomer bearing of strut rod (1) according to the previous variant.
 
      AR33.15-P-0163-01FR 
    SPECIAL TOOL Plate Fig 2
    SPECIAL TOOL Extraction and insertion tool Fig 1
    SPECIAL TOOL Extraction and installation tool Fig 3
INSTALLING Install     
9 Position strut rod (1) in front axle carrier (5) and insert screw (7)    
10.1 Turn steering completely to the left When installing right strut rod (1).  
10.2 Turn steering completely to the right When installing left strut rod (1).  
11 Install strut rod (1) in steering knuckle (4) and tighten nut (2). TORQUE SPECIFICATION Nut, strut rod to steering knuckle *BA33.20-P-1003-01U 
12 Tighten nut (3) TORQUE SPECIFICATION Bolt, strut rod to front axle carrier *BA33.20-P-1004-01U 
13 Attach left or right front wheel   AR40.10-P-1102A
14 Install center and front engine compartment paneling   AR61.20-P-1105FR
WHEEL CONTROL, HUB

Number Designation Model 257
BA33.20-P-1003-01U Nut, strut rod to steering knuckle Stage 1 Nm 250
Stage 2 ∠° -
WHEEL CONTROL, HUB

Number Designation Model 257
BA33.20-P-1004-01U Bolt, strut rod to front axle carrier Stage 1 Nm 120
Stage 2 ∠° 180
Fig 1: Identifying Extraction And Insertion Tool (222 589 03 43 00)
G14548552Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Plate (202 589 04 43 07)
G13841909Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Extraction And Installation Tool (221 589 00 43 00)
G12817707Courtesy of MERCEDES-BENZ USA