Remove/Install Steering Knuckle - AR33.25-P-0400FRX
Model 290
Shown on right side of vehicle
Shown on right side of vehicle
Shown on left side of vehicle with code M005 (4MATIC)
| 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 | ||
| Notes on safety-relevant components | AH00.00-Z-0019-01A | ||
| Remove/install | |||
| 1 | Remove front wheel. | AR40.10-P-1102A | |
| 2 | Remove screw connecting front axle shaft to wheel hub. | Model 290 with code M005 (Vehicles with 4MATIC/all-wheel drive) |
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The aid of a helper is required to tighten the bolt. |
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| *BA33.30-P-1001-02H | |||
| 3 | Remove brake disk. | Model 290 with code B07 (AMG - ceramic brake system) |
AR42.10-P-0230FRK |
| Model 290 with code B06 (Silver brake calipers) except code B07 (AMG - ceramic brake system) Model 290 with code U69 (Brake calipers painted yellow) except code B07 (AMG - ceramic brake system) Model 290 with code U70 (red-painted brake callipers) except code B07 (AMG - ceramic brake system) |
AR42.10-P-0230FRX | ||
| 4 | Detach left front axle RPM sensor (L6/1) or right front axle RPM sensor (L6/2) and place to one side with electrical line connected. | AR42.30-P-0713FRX | |
| 5 | Unclip electrical line from bracket (13). | ||
| 6 | Unhook front right brake wear sensor (S10/2) from holder (13). | When removing the right steering knuckle (1). | |
| 7 | Unscrew nut (11). | *BA32.35-P-1006-02B | |
| 8 | Unscrew nut (3) and detach tie rod (4). | Counterhold the ball head and do not use an impact wrench/driver. Otherwise, the ball head or steering knuckle (1) may be damaged. |
|
| *BA46.40-P-1001-01P | |||
| 9 | Unscrew nut (5). | Counterhold the ball head and do not use an impact wrench/driver. Otherwise, the ball head or steering knuckle (1) may be damaged. |
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| *BA33.20-P-1003-01U | |||
| 10 | Unscrew nut (6). | Counterhold the ball head and do not use an impact wrench/driver. Otherwise, the ball head or steering knuckle (1) may be damaged. |
|
| *BA33.20-P-1001-01U | |||
| 11 | Unscrew nut (7) and detach upper transverse control arm (8) from steering knuckle (1). | Counterhold the ball head and do not use an impact wrench/driver. Otherwise, the ball head or steering knuckle (1) may be damaged. |
|
| *BA33.20-P-1006-01U | |||
| 12 | Pull torsion bar linkage (12) out of steering knuckle (1). | The guide pin (14) must latch into the cutout (15) in the steering knuckle (1). Otherwise, the steering knuckle (1) will be damaged. |
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| 13 | Guide steering knuckle (1) out of strut rod and spring link and remove. | ||
| 14 | Remove brake cover plate (9). | When replacing the steering knuckle (1). | |
| *BA42.10-P-1003-06J | |||
| 15 | Remove wheel bearing. | When replacing the steering knuckle (1). | AR33.20-P-0302FRX |
| 16 | Detach bracket (13). | When replacing the steering knuckle (1). | |
| 17 | Install in the reverse order. |
FRONT AXLE STABILIZER BAR
| Number | Designation | Model 290 | |
|---|---|---|---|
| BA32.35-P-1006-02B | Nut, torsion bar linkage to steering knuckle | Nm | 80 |
WHEEL CONTROL, HUB
| Number | Designation | Model 290 | ||
|---|---|---|---|---|
| BA33.20-P-1001-01U | Nut, spring control arm to steering knuckle | Stage 1 | Nm | 250 |
| Stage 2 | ∠° | - | ||
WHEEL CONTROL, HUB
| Number | Designation | Model 290 | ||
|---|---|---|---|---|
| BA33.20-P-1003-01U | Nut, strut rod to steering knuckle | Stage 1 | Nm | 250 |
| Stage 2 | ∠° | - | ||
WHEEL CONTROL, HUB
| Number | Designation | Model 290 | ||
|---|---|---|---|---|
| BA33.20-P-1006-01U | Nut, steering knuckle to transverse control arm | Stage 1 | Nm | 50 |
| Stage 2 | ∠° | 45 | ||
FRONT AXLE SHAFT
| Number | Designation | Model 290 | ||
|---|---|---|---|---|
| BA33.30-P-1001-02H | Screw/bolt, front axle shaft to wheel hub | Stage 1 | Nm | 160 |
| Stage 2 | loosen approx. 90° | |||
| Stage 3 | Nm | 220 | ||
| Stage 4 | ∠° | 45 | ||
BRAKE DISKS, BRAKE COVER PLATE
| Number | Designation | Model 290 | |
|---|---|---|---|
| BA42.10-P-1003-06J | Bolt, front axle brake cover plate to steering knuckle | Nm | 20 |
TIE ROD
| Number | Designation | Model 290 | ||
|---|---|---|---|---|
| BA46.40-P-1001-01P | Self-locking nut, tie rod to steering knuckle | Stage 1 | Nm | 90 |
| Stage 2 | ∠° | 60 | ||