Remove/install suspension strut

AR32.25-P-1017TY

Remove/install suspension strut

3.5.12

 

Remove/install

 Danger!

Risk of injury caused by moving parts that can pinch, crush or, in extreme cases, even sever extremities

No parts of the body or limbs should be within the operating range of the mechanism when moving components.

AS00.00-Z-0009-01A



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A



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

Place front wheels in straight-ahead position

2

Relieve the pressure from the air suspension strut (40) using STAR DIAGNOSIS until the residual pressure is reached

 Residual pressure in air suspension strut (40) up to 3.5 bar.



Notes on AIRmatic

AH32.22-P-1000-02T

3

Remove front wheel



Remove/install wheels

AP40.10-P-4050TX

4

Remove fender liner front section in front fender

AR88.10-P-1310TX

5

Disconnect electrical connector for damping valve unit

AR32.22-P-1500-01TY

6

Unscrew nut (3) from follower joint for upper transverse control arm (4) at steering knuckle (5)



*BA33.20-P-1008-01K

7

Press follower joint out of steering knuckle (5)

 To prevent the steering knuckle (5) from folding down too low, attach a support strap between the upper control arm (4) and wheel carrier.

AR33.20-P-0500-01TX



*BA33.20-P-1008-01K



*140589003300



*210589046300



*202589023300

8

Disconnect electrical connector (1) at the top of the shift valve

9

Detach pressure line connection (40a)

 Plug the pressure line for the duration of the repair operations. Damaged compressed-air lines (40a) or damaged pressure lines must be repaired: 

Repair compressed-air line (40a).

AR32.22-P-2001-02TX



*BA32.25-P-1003-04K



*211589000900



*000589122800

Leak detection spray

*BR00.45-Z-1002-03A

for USA

*BR00.45-Z-1004-03A

10

Unscrew nuts (2) of air suspension strut (40) to front end



*BA32.25-P-1001-04K

11

Detach air suspension strut (40) from spring control arm (6)

 Installation: Tighten the threaded connection in the curb condition at normal vehicle level.

12

Press down spring control arm (6), detach air suspension strut (40) from spring control arm (6) and remove sideways and downwards

 When replacing or reinstalling the air suspension strut (40), the air suspension strut (40) must be checked: 

Check air suspension strut (40).

AR32.25-P-1017-02TX

13

Install in the reverse order

14

Charge affected air suspension strut (40) with STAR DIAGNOSIS

 The wheels must not touch the ground while being filled because the air bellows in the air suspension strut (40) will be destroyed if filled with the suspension compressed.

15

Tighten threaded connection of air suspension struts (40) on spring control arm (6) in ready-to-drive condition

 Select normal vehicle level with STAR-DIAGNOSIS.



*BA32.25-P-1005-04K

16

Check AIRmatic for leaks

AR32.22-P-8100TX

Number

Designation

Model
219 with
AIRmatic

BA32.25-P-1001-04K

Nut, front suspension strut to front end

Nm

25

BA32.25-P-1003-04K

Air suspension pressure line to front suspension strut

Nm

5

BA32.25-P-1005-04K

Nut, front suspension strut to spring control arm

Nm

165

Number

Designation

Model
219.3

BA33.20-P-1008-01K

Self-locking nut, upper ball joint out of upper transverse control arm to steering knuckle

Stage 1

Nm

20

Stage 2

°

90

Number

Designation

Order number

BR00.45-Z-1002-03A

Leak detection spray

Christof Fischer GmbH,
Augsburger Str. 289-293,
70327 Stuttgart
Germany
Tel. +49 711 30502-0
Fax +49 711 30502-10
www.kaeltefischer.de

BR00.45-Z-1004-03A

Leakage spray for USA

LIQUI MOLY
Gary Boyd
1820 Clark Avenue

Long Beach, CA 90815
USA
Tel. +1 562 5975519

Fax + 1 562 5975269
www.liqui-moly.com