Removing and installing front axle spring strut

AR32.31-P-0605A

Removing and installing front axle spring strut

13.3.95

 

Removing, installing

Installation

Replace self-locking bolts and nuts.

1

Remove front wheels

AP40.10-P-4050Z

2

Install clamping plates (01b, 01c) and clamping device (01a).



*202589136300



*202589013100

 Danger!

Risk of injury from being trapped or crushed when working on preloaded springs or spring bodies

Only use approved clamping devices and if appropriate also screen off the danger area.
Check special tools for damage and function, (visual inspection).
Wear safety gloves.

AS00.00-Z-0001-01A

3

Clamp front spring

 Do not use a impact wrench

 Clamp spring until the wishbone is relieved of load

AR32.20-P-0200-01A

Danger!

<f>Risk of injury<f> to skin or eyes due to hydraulic fluid spraying out under high pressure. <f>Risk of poisoning<f> due to consuming hydraulic fluid.

Before starting work on the hydraulic system, depressurize the system. Wear protective clothing and safety glasses.

AS00.00-Z-0013-01A

4

Empty pressure oil system at front axle

 Installation: Fill pressure oil system at front and rear axles.

AR32.31-P-0630A



General notes for working on vehicles with level control/ADS

All models with code 216b, 216c, 217a, 480

AH32.00-P-0002-01A

5

Remove bracket (11n) of pressure line (P4) at spring strut/piston rod.

6

Unscrew nuts (11j) and remove bracket (11v).

7

Pull pressure line (P4) off spring strut/piston rod.

 Installation: Ensure correct routing of pressure line (P4).

8

Detach nut (11a) with washer and rebound stop (llb) of upper spring strut fixing.



*124589000900

 Nut (11a)

*BA32.31-P-1001-02A

9

Disconnect leak oil line (LL/LR) from the steel line connection



 Installation: Ensure correct routing of leak oil line (LL/LR).

*BA32.31-P-1001-09A

10

Unclip bracket for lines from spring strut (arrows).

11

Unscrew spring strut (11) from steering knuckle (33) and remove.

 Installation:  Replace bolts (11i) and self-locking nut (11u).

*BA32.31-P-1002-02A

 Fit upper bolt (11k) and tighten slightly until the surface of the steering knuckle abuts the spring strut on the inside.
Tighten bolts (11i) and then tighten upper bolt (11k).

*BA32.31-P-1003-02A

12

Secure steering knuckle (33) with a suitable hook (arrow) to prevent it from tilting away.

 Do not tension brake hose and electric cables

13

If necessary, remove rubber mount (11c).

According to the scope of repairs determined, e.g. for accident repair.
 Installation: Replace nut (11d).



*BA32.31-P-1004-02A



Checking

14

Check bump stop (11h), retaining strap (11e), cup seal (11f) for damage and cracks.

 Installation: Attach cup seal (11f) to rubber mount (11c).

15

Check spring strut for leaks.

 Slight oil mist is permissible. If the spring strut tube is moistened with oil 
Replace spring strut.

16

Install in reverse order

17

Carry out chassis alignment check.

AR40.20-P-0200A

 Danger !

Risk of injury from drilling gas-filled units or components (gas fill is not inflammable)

Wear safety glasses and safety mask.

AS00.00-Z-0006-01A

18

Dispose of shock-absorber strut

OS32.25-P-0120-01A

Number

Designation

Model 129 with electronic level control/ADS II

BA32.31-P-1001-02A

Self-locking nuts for attaching spring strut to front end

Nm

80

BA32.31-P-1002-02A

Self-locking bolts for attaching spring strut to steering knuckle

Nm

110

BA32.31-P-1003-02A

Self-locking nuts of clamping connection of spring strut/steering knuckle

Nm

200

BA32.31-P-1004-02A

Self-locking nuts for attaching spring strut rubber mount to front end

Nm

20

Number

Designation

Model 129 with electronic level control/ADS II

BA32.31-P-1001-09A

Leak oil line (LL/LR) to the steel line connection

M101

Nm

14