Check air suspension for leaks

AR32.22-D-8000H

Check air suspension for leaks

17.12.2015

Model

906.11/13/15/21/23/25/61/63/65/71/73 up to 5/31/15

with code PL9 (Air suspension, company VB-Airsuspension)

Shown on model 906.13

1

Cover

4

Air suspension bellows

A10y1

Air compressor solenoid valve

2

Expansion rivets

5

Valve

Y10

Valve unit

3

Compressed-air line

A10

Compressor

 Danger !

Risk of death from lowering vehicle when working between wheels and body. Risk of injury from pinching or crushing when working on the air suspension.

Testing and repair work between the wheel and wheel arch or in the wheel well should only be performed if the vehicle is secured using suitable support fixtures to prevent it from lowering.
Adjustment operations should only be performed from underneath the vehicle.
Use only suitable support fixtures to secure the vehicle frame or vehicle axles in order to prevent them from lowering.
If necessary, additionally use suitable support fixtures in order to prevent other moving vehicle parts that are in the working area from lowering, or use suitable retaining devices to prevent these parts from moving suddenly and without warning.
Secure areas with moving vehicle parts against unauthorized access.

AS32.22-Z-0001-01A



Notes on air suspension

AH32.22-N-1000-01H



Check

1

Fill air suspension with compressed air

Only if the air suspension was unpressurized.

AR32.22-D-2019H

2

Raise vehicle

AR00.60-D-1000H

3

Unclip expansion rivet (2) and remove cover (1)

4

Check components of air suspension for damage and wear

If damaged or worn



Replace respective components.

5

Spray leak detection spray onto connecting points on compressor (A10), valve (5) and air compressor solenoid valve (A10y1) and check for leakage

 Only use leak detection spray approved by Daimler AG.

In case of leaks



Seal or replace affected components.

6

Spray leak detection spray onto connecting points of valve unit (Y10) and connections (arrows A, B) and check for leaks

 Only use leak detection spray approved by Daimler AG.

In case of leaks



Seal or replace affected components.

7

Spray leak detection spray onto compressed air lines (3) of valve unit (Y10) up to connections (arrow C) of air suspension bellows (4) and checks for leaks

 Only use leak detection spray approved by Daimler AG.

In case of leaks



Seal or replace affected components.

8

Spray leak detection spray onto air suspension bellows (4) and check for leakage

 Only use leak detection spray approved by Daimler AG.

In case of leaks



Replace affected air suspension bellows (4).

AR32.22-D-2003H

9

Mount cover (1) with expansion rivets (2)

10

Lower vehicle

Calibrate

11

Calibrate driving level

AR32.22-D-9000H