Remove/install rear axle spring

AR32.20-P-0232MFA

Remove/install rear axle spring

08.11.2018

Model

177, 247

with code U54 (Compound-link axle)

except code U55 (Multi-link axle)

2

Underfloor paneling

5

Cover

3

Expansion rivets

7

Torsion-beam axle

4

Retaining lug

01

Clamping plate

6

Screw

02

Clamping plate

7

Torsion-beam axle

03

Adapter

8

Spring retainer

04

Spring compressors

9

Supports

1

Spring

 Warning

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

Use only approved tensioning devices; additionally screen off hazardous area if necessary. Check special tools for damage and proper operation (visual inspection). Wear protective gloves.

AS00.00-Z-0001-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Notes on repair work on suspension components

AH00.00-P-0100-01A



Remove

1

Remove rear underfloor paneling (2).

AR61.30-P-1001MFA

2

Unclip expansion rivets (3).

 Dismantling tool

*000589956300

3

Press retaining lugs (4) and remove trim (5).

4

Detach level sensor from torsion-beam axle.

Model 177, 247
with code 631 (Static LED headlamps, left-hand traffic)
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)
Model 177, 247
with code 632 (Headlamps, LED, static, right-side traffic)
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)
Model 177, 247
with code 640 (SAE dynamic LED headlamps, right-hand traffic)
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)
Model 177, 247
with code 641 (Dynamic LED headlamps, left-hand traffic)
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)
Model 177, 247
with code 642 (Dynamic LED headlamps, right-hand traffic)
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)

AR82.10-P-0005MFA

5

Insert upper clamping plate (01), lower clamping plate (02) and adapters (03) into spring (1) and fit spring compressor (04).


Ensure correct seating of the clamping plates (01, 02), adapter (03) and spring compressor (04).
Otherwise correct seating of the spring (1) is not guaranteed.

 Adapter

*177589023200

 Clamping plates

*164589016300

 Tensioning device

*202589013100

6

Compress left and right springs (1) with spring compressor (04).

 Adapter

*177589023200

 Clamping plates

*164589016300

 Tensioning device

*202589013100

7

Remove screw/bolts (6).

AR32.25-P-0110MFA

8

Swing torsion-beam axle (7) downwards.

 The spring (1), which is not removed, remains on the torsion-beam axle (7).

9

Release spring compressor (04) and remove spring (1).

 Adapter

*177589023200

 Clamping plates

*164589016300

 Tensioning device

*202589013100



Check

10

Check spring (1) for damage and corrosion.

If the spring (1) is reused.


Only repair paint damage using a black touch-up paint pen.
Otherwise it could lead to confusion with the color marking of the rear spring (1).

If the spring (1) exhibits damage and severe corrosion,



Replace spring (1).

11

Check upper and lower spring retainers (8) for damage.

If the spring retainer (8) is reused.

If there is damage.



Replace spring retainer (8).



Install

12

Position spring (1) in lower and upper spring retainers (8).

13

Insert spring (1) and spring retainers (8) into mounts (9).


Ensure correct seating of the spring (1) and spring retainers (8) in the mounts (9).
Otherwise correct seating of the spring (1) is not guaranteed.

 Adapter

*177589023200

 Clamping plates

*164589016300

 Tensioning device

*202589013100

14

Compress spring (1) with spring compressor (04) and swing torsion-beam axle (7) upwards.

 Swing far enough upwards until the screws (6) can be screwed in.
The spring (1) must be installed so that the single color dot points downwards.

 Adapter

*177589023200

 Clamping plates

*164589016300

 Tensioning device

*202589013100

15

Counterhold nut on screw (6) and tighten.

Remove/install rear shock absorber

AR32.25-P-0110MFA

16

Release spring compressor (04) at both ends and remove.

 Adapter

*177589023200

 Clamping plates

*164589016300

 Tensioning device

*202589013100

17

Remove clamping plates (01, 02) and adapters (03).

 Adapter

*177589023200

 Clamping plates

*164589016300

18

Install level sensor of torsion-beam axle.

Model 177, 247
with code 631 (Static LED headlamps, left-hand traffic)
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)
Model 177, 247
with code 632 (Headlamps, LED, static, right-side traffic)
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)
Model 177, 247
with code 640 (SAE dynamic LED headlamps, right-hand traffic)
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)
Model 177, 247
with code 641 (Dynamic LED headlamps, left-hand traffic)
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)
Model 177, 247
with code 642 (Dynamic LED headlamps, right-hand traffic)
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)

AR82.10-P-0005MFA

19

Install trim (5).

20

Install rear underfloor paneling (2).

AR61.30-P-1001MFA



Check

21

Check headlamp adjustment and correct if necessary.



Model 247
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)

AP82.10-P-8260AO



Model 177
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)

AP82.10-P-8260N