Remove/install front axle half

AR33.10-P-0200TX

Remove/install front axle half

14.6.10

15.6.10

Value modified: Self-locking nut, tie rod to steering knuckle, Stage 2

*BA46.40-P-1001-01E

 

Remove/install

Danger!

Risk of injury caused by body parts being jammed or crushed. Risk of injury to skin and eyes caused by brake fluid spraying out at high pressure when working on the SBC brake system

Deactivate SBC brake system using STAR DIAGNOSIS.

AS42.46-Z-0001-01A



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A



Notes on AIRmatic

AH32.22-P-1000-02T



Before opening the SBC system, thoroughly clean the surrounding area of the separation point. Even minute particles of dirt, introduced into the hydraulic components, can result in malfunctions and a total failure of the SBC system



When working on the front-end assembly, be careful not to scratch, mark or notch the surfaces of aluminum parts. Otherwise the service life of the parts will be affected

 Installation

Only tighten nuts and bolts of chassis components when vehicle is in a ready-to-drive condition.

1

Deactivate SBC brake system using STAR DIAGNOSIS.

Vehicles with Sensotronic Brake Control (SBC)

 The following steps should be run through in STAR DIAGNOSIS:

Select the menu item "SBC-Sensotronic Brake Control"/"Initial startup after repair"/"Deactivate 'SBC' system".

Then process all the individual steps from top to bottom.

2

Deflate front suspension strut (7) using STAR DIAGNOSIS

Vehicles with AIRmatic (semi-active air suspension), code 489

3

Remove front wheel



Remove/install wheels

AP40.10-P-4050TX

4

Remove left front rpm sensor (L6/1) or right front rpm sensor (L6/2) from steering knuckle (5) and hang up to one side

Vehicles without Airmatic (semi-active air suspension)

 To do this, unscrew bolt (6a) and unclip electrical feed cables from retaining clips.

 Installation: Observe correct observe installation position, the chafe protection (5a) must be screwed to the rpm sensor (L6/1, L6/2) as shown. It must not be assembled between the rpm sensor (L6/1, L6/2) and steering knuckle (5).



*BA42.30-P-1001-01H

5

Separate left front brake pad contact sensor (S10/1) or right front brake pad contact sensor (S10/2) at connector

Vehicles without Airmatic (semi-active air suspension)

6

Detach electrical feed line (10a) of left front brake pad contact sensor (S10/1) or right front brake pad contact sensor (S10/2) from brake caliper

Vehicles with AIRmatic (semi-active air suspension), code 489



*BA42.10-P-1003-10B

 Danger!

Risk of poisoning caused by swallowing brake fluid. Risk of injury caused by brake fluid coming into contact with skin and eyes.

Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid.

AS42.50-Z-0001-01A

7

Detach brake hose (51) from brake line (52)

 Seal brake line (52) immediately with  stop plugs, the brake fluid expansion reservoir must not run empty.

 Installation: The brake hose (51) must not be twisted after tightening (risk of cracking).

 When loosening and tightening the brake line (52) on the brake hose (51), take care not to twist the bracket (51a). Use an open wrench to counterhold at the two flats of the brake hose (51).



*BA42.10-P-1001-04I



*129589009100



*000589750300



Brake fluid notes

AH42.50-P-0001-01A



Notes on installing brake hoses

AH42.10-P-9406-01A

8.1

Detach front spring strut (7) from front end by unscrewing nuts (7a)

Vehicles without Airmatic (semi-active air suspension)

AR32.25-P-1017TX

8.2

Disconnect electrical and pneumatic feed lines of front suspension strut (7) and detach suspension strut (7) from front end

Vehicles with AIRmatic (semi-active air suspension), code 489

AR32.25-P-1017TY

9

Detach electrical connector of left front brake pad contact sensor (S10/1) or right front brake pad contact sensor (S10/2) and left front rpm sensor (L6/1) or right front rpm sensor (L6/2)

Vehicles with AIRmatic (semi-active air suspension), code 489

AR42.10-P-1040-04TX

10

Pry the tie rod ball joint (9a) off the steering knuckle (5)

AR46.40-P-0200-02TX



*BA46.40-P-1001-01E



*140589006300



*140589003300

11

Detach torque strut (18) from front axle carrier (1)

 Do not twist bolt (18a). Counterhold bolt (18a) when slackening the nut. Otherwise the fixing lugs for the caster adjustment in the rubber mount will be sheared off when the repair kit is fitted.



*BA33.20-P-1006-01K

12

 Mount guard plate for brake cover plate

AR42.00-P-0100-01TX



*220589013100

13

Support front halfshaft

14

Remove link rod (78k) of stabilizer bar (78) from pivot bushing (17d) in spring control arm (17)



*BA32.20-P-1003-02M

15

Detach spring control arm (17) from front-axle carrier (1)

 The bolt (17a) must not turn. Counterhold bolt (17a) when slackening the nut. When the repair kit is fitted, otherwise the fixing lugs for camber adjustment in the rubber mount will be sheared off.



*BA33.20-P-1005-01K



*211589000300

16

Press follower joint (8a) out of steering knuckle (5).

 In the process secure the steering knuckle (5) to prevent it from tilting.

AR33.20-P-0500-01TX



*BA33.20-P-1008-01K



*140589003300

17

Remove front axle half

18

Remove upper transverse control arm (8)

If necessary

AR33.20-P-0500TX

19

Install in the reverse order

20.1

Bleed brake system with STAR DIAGNOSIS

Vehicles with Sensotronic Brake Control (SBC)

AR42.10-P-0012TX

 The following steps should be run through in STAR DIAGNOSIS:

Select menu item "initial startup after repair"/"after opening or exchanging one or more brake hoses".

Then process all the individual steps from top to bottom.

 When performing the bleeding operation always observe the instructions in the document "Bleeding brake system using STAR DIAGNOSIS".

20.2

Bleed brake system

Vehicles with Adaptive Brake (ABR)

AR42.10-P-0010T

21

Perform a wheel alignment check

AR40.20-P-0200TX

Number

Designation

Model
219.3

BA32.20-P-1003-02M

Self-locking nut, link rod to joint piece

Nm

130

Number

Designation

Model
219.372/376/377

Model
219.322/354/356/
357/375

BA42.10-P-1003-10B

Bolt, brake pad contact sensor to brake caliper

Nm

8

8

Number

Designation

Model
219
with SBC

Model
219 with
ABR

BA42.10-P-1001-04I

Union nut, brake line to brake hose

Nm

18

18

Number

Designation

Model
219

BA46.40-P-1001-01E

Self-locking nut, tie rod to steering knuckle

Stage 1

Nm

50

Stage 2

°

90

Number

Designation

Model
219.3

BA33.20-P-1005-01K

Self-locking nut, spring control arm to front axle carrier

Stage 1

Nm

80

Stage 2

°

120

BA33.20-P-1006-01K

Self-locking nut, torque strut to front axle carrier

Stage 1

Nm

80

Stage 2

°

120

BA33.20-P-1008-01K

Self-locking nut, upper wishbone follower joint to steering knuckle

Stage 1

Nm

20

Stage 2

°

90

Number

Designation

Model
219

BA42.30-P-1001-01H

Self-locking bolt, front axle rpm sensor to steering knuckle

Nm

25