Remove/install rear axle suspension strut

AR32.31-P-0610A

Remove/install rear axle suspension strut

21.3.95

30.9.97

Control module and roll bar switch no longer required

Stage 7

BT91.59-P-0001-01A



Remove/Install

1

Remove top spring strut mounting

 The vehicle must be standing on its wheels for removing the top spring strut mounting.

 Counterhold spring strut (5) in wheel house.

 Nut (5p)

*BA32.31-P-1001-03A

 Nut (5a)

*BA32.31-P-1002-03A

2

Remove washer (5b) and rubber mount (5c)

3

Raise vehicle.

4

Detach rear wheels.

AP40.10-P-4050Z

Danger!

Risk of injury to skin or eyes from hydraulic fluid spraying out under pressure. Risk of poisoning from swallowing hydraulic fluid.

Release the pressure in the hydraulic system completely before starting any work on the system. Wear protective clothing and safety glasses.

AS00.00-Z-0013-01A

5

Empty pressure oil system at rear axle

Installation: Fill pressure oil system at front and rear axle

AR32.31-P-0630A

6

Disconnect pressure line (P4) at spring strut



*BA32.31-P-1004-03A

 Installation: Replace copper sealing rings on the banjo bolt (5v)

Before tightening pressure line at spring strut 

Checking and setting distance between rear axle spring strut and wheel house

AR32.31-P-0610-01A

7

Remove roll bar switch (S83/2 or S83/3).

ra91001240860x



Control module and roll bar switch no longer required

BT91.59-P-0001-01A

8

Remove spring link cover (72c)

9

Detach and remove spring strut (5) from spring link (72)

 Installation: Extend suspension strut so that the suspension strut mount abuts the dome.

Replace self-locking nut (5n.



*BA32.31-P-1003-03A



Inspect

10

Check rubber mounts (5c, 5d), disc (5e), spring strut mount and rubber sleeve for damage and cracks.

Check ball joint for wear

11

Check spring strut for leaks.

 A fine oil mist is permitted.
If the joint socket is covered with oil  replace the strut.

12

Install in the reverse order

13

Check distance and setting between the spring strut and the wheel house in the ready to drive state

If necessary, loosen spring strut mounting and correct position of spring strut.

AR32.31-P-0610-01A

14

Check roll bar system functions works correctly.

ra91001240830x

 Danger!

Risk of injury when drilling gas-filled assemblies or components (gas filling cannot ignite)

Wear safety glasses and face 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

BE32.31-P-1001-01A

Distance between pressure hose bracket on spring strut tube and wheel house

at rebound

left

mm

11...14

right

mm

11...14

Fig. see

AR32.31-P-0610-01A

BE32.31-P-1002-01A

Distance between pressure hose bracket on spring strut tube and wheel house

ready-to-drive (vehicle on its wheels)

Left

mm

16...19

right

mm

16...19

Fig. see

AR32.31-P-0610-01A

Number

Designation

Model 129 with electronic level control system / ADS II

BA32.31-P-1001-03A

Nut of spring strut of level control to frame floor
(Reference value)

NM

17

BA32.31-P-1002-03A

Jam nut, level control system spring strut to frame floor (reference value)

NM

30

BA32.31-P-1003-03A

Self-locking nut, level control spring strut
to spring link

NM

55

BA32.31-P-1004-03A

Banjo bolt of pressure pipe of level control to spring strut

NM

25