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Home >> Mercedes Benz >> 2013 >> S400 >> Repair and Diagnosis >> Suspension >> Front Suspension >> Front Axle - 221 Chassis - 2 Of 2 >> Testing & Repair >> Remove/install steering knuckle >> Remove/install steering knuckle - AR33.25-P-0400SX

Remove/install steering knuckle - AR33.25-P-0400SX

MODEL 216.37 

MODEL 221.003/02/05/07/103/12/15/17 without CODE Z07 (Top protection) 

MODEL 221.09/19 without CODE M005 (4MATIC) 

Fig 1: Identifying Steering Knuckle Remove/Install Components
G10109526Courtesy of MERCEDES-BENZ USA
NOTES Notes on self-locking nuts and bolts   AH00.00-N-0001-01A
IMPORTANT Notes on repair work on suspension components   AH00.00-P-0100-01A
REMOVINGINSTALLING Remove/install     
1 Detach front complete wheel    
REFER TO MAINTENANCE     AP40.10-P-4050SX
2 Detach left front rpm sensor (L6/1) or right front rpm sensor (L6/2) from steering knuckle (5)   AR42.30-P-0712SX
3 Remove wheel hub (3) MODEL 216.37
without CODE M005 (4MATIC)
MODEL 221.00/02/05/07/10/12/15/17
without CODE M005 (4MATIC)
without CODE Z07 (Top protection)
MODEL 221.09/19
without CODE M005 (4MATIC)
without CODE Z07 (Top protection)
AR33.20-P-0310SX
4 Detach brake cover plate (4) TORQUE SPECIFICATION Bolt, brake cover plate to steering knuckle or wheel carrier *BA42.10-P-1003-06G 
5 Detach torsion bar linkage (7) from steering knuckle (5) MODEL 216.37
with CODE 489 (AIRMATIC)
MODEL 221.00/02/05/07/10/12/15/17
with CODE 489 (AIRMATIC)
without CODE Z07 (Top protection)
MODEL 221.09/19
with CODE 489 (AIRMATIC)
without CODE M005 (4MATIC)
 
TORQUE SPECIFICATION Nut, torsion bar linkage to steering knuckle *BA32.20-P-1002-02O 
6 Detach tie rod ball joint (10a) from steering knuckle (5)   AR46.40-P-0200-02SX
TORQUE SPECIFICATION Nut, tie rod to steering knuckle *BA46.40-P-1001-01M 
SPECIAL TOOL Thrust piece Figure
SPECIAL TOOL Puller Fig 6
SPECIAL TOOL Puller Fig 5
SPECIAL TOOL Press Fig 8
7 Detach strut rod (18) from front axle carrier   AR33.15-P-0160SX
8 Detach spring control arm (17) from steering knuckle (5)   AR33.15-P-0170-01SX
TORQUE SPECIFICATION
MODEL 216.37
MODEL 221.003/02/05/07/103/12/15/17
without CODE Z07 (Top protection)
without CODE Z19 (S600 Pullman Guard state sedan)
MODEL 221.094/194
without CODE M005 (4MATIC)
without CODE Z07 (Top protection)
MODEL 221.095/195
without CODE M005 (4MATIC)
without CODE Z07 (Top protection)
without CODE Z19 (S600 Pullman Guard state sedan)
*BA33.20-P-1003-01M 
SPECIAL TOOL Puller Fig 2
9 Detach upper ball joint (8) from steering knuckle (5)   AR33.20-P-0500-01SX
TORQUE SPECIFICATION
MODEL 216.37
MODEL 221.003/02/05/07/103/12/15/17
without CODE Z07 (Top protection)
without CODE Z19 (S600 Pullman Guard state sedan)
MODEL 221.094/194
without CODE M005 (4MATIC)
without CODE Z07 (Top protection)
MODEL 221.095/195
without CODE M005 (4MATIC)
without CODE Z07 (Top protection)
without CODE Z19 (S600 Pullman Guard state sedan)
*BA33.20-P-1007-01M 
SPECIAL TOOL Puller Fig 7
SPECIAL TOOL Thrust washer M 10x1.5 Fig 3
10 Remove steering knuckle (5)    
11 Remove radius rod (18) from steering knuckle (5). When replacing the steering knuckle (5).  
  AR33.15-P-0160-01SX
TORQUE SPECIFICATION
MODEL 216.37
MODEL 221.003/02/05/07/103/12/15/17
without CODE Z07 (Top protection)
without CODE Z19 (S600 Pullman Guard state sedan)
MODEL 221.094/194
without CODE M005 (4MATIC)
without CODE Z07 (Top protection)
MODEL 221.095/195
without CODE M005 (4MATIC)
without CODE Z07 (Top protection)
without CODE Z19 (S600 Pullman Guard state sedan)
*BA33.20-P-1004-01M 
SPECIAL TOOL Puller Fig 2
INSPECT Check     
12 Check seal bellows and supporting ball joint of spring control arm (17) for damage If damage is present:
↓
Replace spring control arm (17).
 
MODEL 216.37
with CODE 487 (Active Body Control (ABC))
MODEL 221.00/02/05/07/10/12/15/17
with CODE 487 (Active Body Control (ABC))
without CODE Z07 (Top protection)
AR33.15-P-0170SY
MODEL 221.00/02/05/07/10/12/15/17
without CODE 487 (Active Body Control (ABC))
without CODE M005 (4MATIC)
without CODE Z07 (Top protection)
AR33.15-P-0170SX
13 Check seal bellows and ball joint of strut rod (18) for damage If damage is present:
↓
Replace strut rod (18).
 
AR33.15-P-0160SX
14 Install in the reverse order    
FRONT AXLE TORSION BAR

Number Designation MODEL 216 MODEL 221
BA32.20-P-1002-02O Nut, torsion bar linkage to steering knuckle Nm 90 90
WHEEL CONTROL, HUB

Number Designation MODEL 216.37 MODEL 221.003/02/05/07/095/103/12/15/17/195 except CODE Z07 except CODE Z19 except 4MATIC
BA33.20-P-1003-01M Self-locking nut, track control arm to stub axle Stage 1 Nm 40 40
Stage 2 ∠° 150 150
WHEEL CONTROL, HUB

Number Designation MODEL 221.08/094/18/194 except CODE Z07 except 4MATIC
BA33.20-P-1003-01M Self-locking nut, track control arm to stub axle Stage 1 Nm 50
Stage 2 ∠° 90
WHEEL CONTROL, HUB

Number Designation MODEL 216.37 MODEL 221.003/02/05/07/095/103/12/15/17/195 except CODE Z07 except CODE Z19 except 4MATIC
BA33.20-P-1004-01M Self-locking nut, strut rod to steering knuckle Stage 1 Nm 40 40
Stage 2 ∠° 150 150
WHEEL CONTROL, HUB

Number Designation MODEL 221.08/094/18/194 except CODE Z07 except 4MATIC
BA33.20-P-1004-01M Self-locking nut, strut rod to steering knuckle Stage 1 Nm 50
Stage 2 ∠° 90
WHEEL CONTROL, HUB

Number Designation MODEL 216.37 MODEL 221.003/02/05/07/095/103/12/15/17/195 except CODE Z07 except CODE Z19 except 4MATIC
BA33.20-P-1007-01M Self-locking nut, upper ball joint out of upper transverse control arm to steering knuckle Stage 1 Nm 20 20
Stage 2 ∠° 90 90
WHEEL CONTROL, HUB

Number Designation MODEL 221.08/094/18/194 except CODE Z07 except 4MATIC
BA33.20-P-1007-01M Self-locking nut, upper ball joint out of upper transverse control arm to steering knuckle Stage 1 Nm 20
Stage 2 ∠° 90
BRAKE DISKS, BRAKE COVER PLATE

Number Designation MODEL 216 MODEL 221
BA42.10-P-1003-06G Bolt, brake cover plate to steering knuckle or wheel carrier M6 Nm 14 14
M8 Nm 18 18
TIE ROD

Number Designation MODEL 216 MODEL 221
BA46.40-P-1001-01M Nut, tie rod to steering knuckle Stage 1 Nm 40 90
Stage 2 ∠° 90 90
Fig 2: Identifying Puller (221 589 02 33 00)
G07687719Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Thrust Washer M 10X1.5 (210 589 04 63 00)
G07304530Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Thrust Piece (140 589 00 63 00)
G07279191Courtesy of MERCEDES-BENZ USA
Fig 5: Identifying Puller (221 589 05 33 00)
G07300838Courtesy of MERCEDES-BENZ USA
Fig 6: Identifying Puller (221 589 00 33 00)
G07687661Courtesy of MERCEDES-BENZ USA
Fig 7: Identifying Puller (140 589 00 33 00)
G07492442Courtesy of MERCEDES-BENZ USA
Fig 8: Identifying Press (163 589 03 43 00)
G07300835Courtesy of MERCEDES-BENZ USA