Remove/install front axle half

AR33.10-P-0200FRX

Remove/install front axle half

07.08.2018

Model

290

Shown except code 489 (AIR BODY CONTROL)

1

Steering knuckle

2

Suspension strut

3

Spring control arm

4

Stabilizer bar linkage

5

Tie rod

6

Transverse control arm

7

Strut rod

Topical note

Notes on AIR BODY CONTROL

Model 290
with code 489 (AIR BODY CONTROL)

AH32.22-P-1000-03LWO

Topical note

Notes on handling, transport and storage of ceramic brake disks

AH42.10-P-9406-13A

Topical note

Notes on handling, transport and storage of composite brake disks

AH42.10-P-9406-12LF

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

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 hub cap from corresponding front wheel.

Model 290
with code M005 (4MATIC)

If front wheel is to be removed,



remove corresponding front wheel.

AR40.10-P-1102A

2

Release bolt for front axle shaft to wheel hub.

Model 290
with code M005 (4MATIC)

 Screw/bolt, front axle shaft to wheel hub

*BA33.30-P-1001-02H

3

Remove corresponding front wheel.

AR40.10-P-1102A

4

Remove screw connecting front axle shaft to wheel hub.

Model 290
with code M005 (4MATIC)

 Installation: Replace bolt.
Tighten bolt lightly by hand.

5

Drain pressure in AIR BODY CONTROL system using vehicle diagnosis system.

Model 290
with code 489 (AIR BODY CONTROL)



AD00.00-P-2000-06FR

6

Remove brake caliper with brakepads and secure at vehicle with connected brake hose free of tension.

Model 290
with code B06 (grey-painted brake callipers)
except code B07 (Ceramic brake system)
Model 290
with code U69 (Yellow-painted AMG brake callipers)
except code B07 (Ceramic brake system)
Model 290
with code U70 (red-painted brake callipers)
except code B07 (Ceramic brake system)

AR42.10-P-0070FRX

Model 290
with code B07 (Ceramic brake system)

AR42.10-P-0070FRK

7

Remove holder of rpm sensor and brakepad wear sensor with electric lines from spring link (3) and place to one side.

8

Remove front axle rpm sensor from steering knuckle (1).

AR42.30-P-0713FRX

9

Remove suspension strut (2) from spring link (3).

Model 290
with code 489 (AIR BODY CONTROL)

AR32.25-P-1017FRA

Model 290
except code 489 (AIR BODY CONTROL)

AR32.25-P-1017FR

10

Remove torsion bar linkage (4) from steering knuckle (1).

AR32.35-P-3330FRA

11

Remove tie rod (5) from steering knuckle (1).


The ball head must be counterheld and an impact wrench/driver must not be used.
Otherwise, the ball head or steering knuckle (1) may be damaged.

 Self-locking nut, tie rod to steering knuckle

*BA46.40-P-1001-01P

12

Attach guard plate for brake cover plate.

AR42.00-P-0100-01FR

 Guard plate

*220589013100

13

Remove stabilizer bar from front axle.

AR32.35-P-2200FRA

 Do not remove torsion bar linkage (4) from stabilizer bar.

14

Support steering knuckle (1) with major assembly mount and mounting plate and secure against falling down with tensioning strap.



000 588 11 62 00 Major assembly mount

WS01.00-P-0092B



000 588 10 62 00 Support plate

WS26.00-P-3309B

15

Secure front axle shaft against falling down.

Model 290
with code M005 (4MATIC)

16

Remove upper transverse control arm (6) from steering knuckle (1).


The ball head must be counterheld and an impact wrench/driver must not be used.
Otherwise, the ball head or steering knuckle (1) may be damaged.

 Nut, steering knuckle to transverse control arm

*BA33.20-P-1006-01U

17

Remove spring link (3) from front axle carrier.

 Installation: Tighten bolt of spring control arm (3) on front axle carrier fully only after the wheel alignment measurement.

18

Remove strut rod (7) from front axle carrier.

 Installation: Tighten bolt for strut rod (7) on front axle carrier fully only after the wheel alignment measurement.

19

Carefully lower front-axle half using major assembly mount and remove.

20

Install in the reverse order.



Measure

21

Perform chassis alignment.

AR40.20-P-0200FRX



Install

22

Tighten bolt of spring control arm (3) on front axle carrier.

 Bolt, spring control arm to front axle carrier

*BA33.20-P-1002-01U

23

Tighten bolt of strut rod (7) on front axle carrier.

 Bolt, strut rod to front axle carrier

*BA33.20-P-1004-01U

 Wheel control, hub

Number

Designation

Model 290

BA33.20-P-1002-01U

Bolt, spring control arm to front axle carrier

Stage 1

Nm

120

Stage 2

°

180

 Wheel control, hub

Number

Designation

Model 290

BA33.20-P-1004-01U

Bolt, strut rod to front axle carrier

Stage 1

Nm

120

Stage 2

°

180

 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

 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