Remove/install front spring

AR32.20-P-0200RT

Remove/install front spring

11.5.05



Remove

Danger!

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between the columns of the lifting platform and position the four support plates at the lifting platform support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

 Danger!

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

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



Notes on adjusting the vehicle level at the front axle

The vehicle level must be adjusted if the values are outside the tolerance during the measurement of vehicle level. The following should be observed here:
 The vehicle level is reduced by removing spacer rings or increased by adding spacer rings between the spring (7) and the bottom spring seat (12).

 If the spring seat (4) and/or spring (7) and/or shock absorber (11) have to be replaced after testing, then the suspension strut is first to be installed in the vehicle without spacer rings and the vehicle level measured again. If the values are still outside the tolerance after a further level measurement, the suspension strut must be removed again and the vehicle level adjusted.

1

Remove front suspension strut

AR32.25-P-1017RT

 

Disassemble/assemble

2

Clamp tensioning device (10) in a vise, insert clamping plate (8) and clamping plate (9)

 Tensioning device

*203589013100

 Tensioning plates

*169589026300

3

Insert suspension strut into tensioning device (10)

 Insert suspension strut to clamp as many coils on the spring (7) as possible.

 Mark the position of all parts of the suspension strut relative to each other.

 Tensioning device

*203589013100

 Tensioning plates

*169589026300

4

Clamp spring (7) until the upper spring cup (3) is relieved of load.

 The tensioning device (10) must be clamped and unclamped using a fork wrench or box wrench. No pneumatic or electrically driven tools may be used.

 Tensioning device

*203589013100

 Tensioning plates

*169589026300

5

Remove cap (1)

6

Unscrew mounting nut (2), remove shock absorber (11) and if necessary spacer rings from the spring (7)

 Counterhold piston rod using socket wrench.



*BA32.25-P-1003-01H

 Socket wrench

*164589001000

7

Remove bellows (6) and stop damper (5) from the spring (7)

8

Release tensioning device (10) and remove spring (7) with upper spring cup (3) and spring seat (4)

 The tensioning device (10) must be clamped and unclamped using a fork wrench or box wrench. No pneumatic or electrically driven tools may be used.



Check

9

Check shock absorber (11)

 Check shock absorber (11) for external damage, external and internal leaks, replace shock absorber (11) if necessary.

AR32.25-P-0121A

10

Check bellows (6), stop damper (5) and spring seat (4) for signs of wear

 Replace any components with oil contamination, cracks or deformation.

Adjust

11.1

Remove spacer rings between the spring (7) and bottom spring seat (12) to reduce the vehicle level or add to increase the vehicle level

 Only if the vehicle level is to be adjusted at the front axle without replacing the spring seat (4) and/or the spring (7) and/or the shock absorber (11).

 If the spring seat (4) and/or spring (7) and/or shock absorber (11) are replaced, all the spacer rings fitted during removal must be left out.

12

Assemble in reverse order

 Assemble the suspension strut so that the upper spring cup (3) is mounted in the correct position. Observe markings.



Install

13

Install front suspension strut, measure vehicle level and adjust if necessary

AR32.25-P-1017RT

14.1

Adjust the zero position of the xenon headlamps

 On vehicles with bi-xenon headlamp unit with integrated curve illumination, code 615.



Connect STAR DIAGNOSIS and read out fault memory

AD00.00-P-2000-04A

STAR DIAGNOSIS diagnosis system

*WH58.30-Z-1048-13A

15

Check headlamp adjustment and correct if necessary



Check and correct headlamp adjustment

AP82.10-P-8260RT

Number

Designation

Model 251

BA32.25-P-1003-01H

Nut to piston rod

Nm

30

Number

Designation

WH58.30-Z-1048-13A

STAR DIAGNOSIS diagnosis system, Compact Passenger Car

6511 1801 00