Remove/install front spring

AR32.20-P-0200RR

Remove/install front spring

11.2.08

17.7.06

New removal variant with special tool inserted

Step 5.2

 

Remove/install

 Danger!

Risk of injury caused by pinching or crushing when working on springs or spring bodies that are under tension

Use only approved tensioning devices; shield off hazard area if necessary.
Inspect special tools for damage and proper operation (visual inspection).
Wear protective gloves.

AS00.00-Z-0001-01A



Notes on self-locking nuts and bolts

All models

AH00.00-N-0001-01A

1

Remove front suspension strut

 There are no requirements for replacing suspension components in pairs, but it is recommended.

AR32.25-P-1017RR

2

Clamp assembly tool set (7) in vise

 Ensure correct seating of assembly tool set (7) in vise.

 Assembly tool set

*450589089900

3

Insert spring (1) in assembly tool set (7)

 The windings of the spring (1) must be gripped reliably in order to prevent the assembly tool set (7) from slipping off.

Insert the spring (1) in the lower and upper winding of the assembly tool set (7) and pre-load slightly. Check again for the correct seating of the spring (1)

 Assembly tool set

*450589089900

4

Tension spring (1)

 Do not use an impact wrench when clamping.

Clamp spring (1) until the spring cup (3) is exposed

 Installation: Make sure spring (1) is seated correctly in guide (4).

5.1

Remove nut from head bearing (5)

 Do not turn the piston rod. Here the stabilizer assembly (8) tool assortment should be used to counterhold only, as otherwise the piston rod may be damaged by the shock absorber (2).



*BA32.25-P-1001-04D

 Tool assortment for stabilizer assembly

*450589001700

5.2

Push back boot on suspension strut and mount holding device on the piston rod of the shock absorber

 Only when nut on head bearing (5) is seized.

 Pay attention to correct and tight seating of holding device.

 See fig. A.

 Holding device

*451589006300

5.3

Hold holding device with fork wrench and screw nut onto head bearing (5)

 Only when nut on head bearing (5) is seized.

 Tool assortment for stabilizer assembly

*450589001700

 Holding device

*451589006300

Open end wrench

*450589010100

6

Remove head bearing (5) from shock absorber (2)

7

Remove thrust bearing (6)

 Check thrust bearing (6) for condition and wear

8

Remove spring cup (3) and pull shock absorber (2) out of spring (1)

9

Release spring (1)

 When loosening the assembly tool set (7) do not use any impact wrench.

 Installation: Do not scratch spring (1) when installing, paint damage should be rectified.

10

Install in the reverse order

Number

Designation

Model 452.3/4

BA32.25-P-1001-04D

Self-locking nut, spring plate to piston rod

Nm

60