Remove/install air suspension bellows on rear axle

AR32.22-S-2016E

Remove/install air suspension bellows on rear axle

20.07.2020

Model

447

with code CA4 (AIRMATIC)

1

Air suspension bellows

2

Catch hook

3

Adhesive tape

4

Pressure line

 Danger

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

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

AS00.00-Z-0010-01A

 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

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

Topical note

Notes on air suspension

AH32.22-N-1000-01E

Notes on repair work on suspension components

AH00.00-P-0100-01A

 

Remove/install

1

Raise vehicle.

AR00.60-S-1000E

 Lift until all wheels are clear of the ground.

2

Empty air suspension.

AR32.22-S-2019E

3

Remove respective rear wheel and tire assembly.

AR40.10-S-1100E

 Installation: Wheels must not have any contact with the ground.

4

Detach air suspension bellows (1) at bottom from semi-trailing arm.

 To do so, unclip air suspension bellows (1) at retaining clips (arrows).

 Installation: Position air suspension bellows (1) correctly.

5

Remove air suspension bellows (1) at top.


The air suspension bellows (1) must be unclipped from both catch hooks (2) at the same time.
Otherwise, the catch hooks (2) may be damaged.

 To do so, carefully unclip air suspension bellows (1) at catch hooks (2) and remove downwards.

 Installation: Position air suspension bellows (1) correctly.

6

Remove air suspension bellows (1).

Note on calculation of tightening torque when using insertion or socket tools with various effective lengths

AH00.00-P-0015-01CW

 To do so, remove tape (3) and detach pressure line (4).
Use suitable open end wrench bit in combination with  socket wrench socket.
Seal connections.

 Retaining screw, pressure line to rear axle air suspension bellows

*BA32.22-N-1006-03EA

 Record plug

*129589009100

 Socket wrench bit

*211589000900



Check

7

Check pressure line connection at pressure line (4) and pressure line (4) for damage.

If damage is present,



Repair pressure line connection at pressure line (4).

AR32.22-S-2001-01E

 Knife

*000589122800

8

Install in the reverse order.



Check

9

Check pressure line (4) and pressure line connections for leak tightness.

AR32.22-S-8000E

 Component parts of air suspension

Number

Designation

Model 447
with code CA4 (AIRMATIC)

BA32.22-N-1006-03EA

Retaining screw, pressure line to rear axle air suspension bellows

Nm

2