Remove/install air suspension compressor

AR32.22-P-2001EW

Remove/install air suspension compressor

15.11.2019

Model

212

with code 488 (Steel/air suspension)

Model

212

with code 489 (AIRMATIC)

Model

218

with code 488 (Steel/air suspension)

Model

218

with code 489 (AIRMATIC)

10

Cover

1

Pressure line

2

Hose

3

Air filter

4

Nut

5

Electrical connector

6

Electrical connector

7

Elastomer bearing

8

Guide

9

Cable tie

11

Notch

A9/1

AIRMATIC compressor

A9/1y1

AIRMATIC pressure reduction valve

 Warning

Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities.

No parts of the body or limbs should be within the operating area of mechanical components when moving components.

AS00.00-Z-0009-01A

Topical note

Notes on AIRmatic

AH32.22-P-1000-02EW

 

Remove/install

 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

1

Lift vehicle on vehicle lift

2

Remove cover (10)

3

Detach pressure line (1) from AIRmatic compressor (A9/1)

 Box wrench bit

*140589000300

If pressure line connection or pressure line (1) is damaged:



Repair AIRmatic pressure line connection.

AR32.22-P-2001-02SX

 Pressure line to compressor/valve unit

*BA32.22-P-1007-03E

 Socket wrench bit

*211589000900

 Knife

*000589122800

4

Remove hose (2) from guide (8)

5

Remove hose (2) from AIRmatic compressor (A9/1)

6

Release notch (11) in direction of arrow and detach electrical connection (5) from AIRmatic pressure reduction valve (A9/1y1)

7

Remove cable tie (9)

 Installation: Replace cable tie (9).

8

Disconnect electrical connector (6)

9

Unhook air filter (3) from compressor unit

10

Unscrew nuts (4) and remove AIRmatic compressor (A9/1)

 Nut, compressor mounting to compressor unit bracket

*BA32.22-P-1001-03E

11

Change mounting of electrical line on AIRmatic compressor (A9/1)

Model 212.0/1
with code 488 (Steel/air suspension)
Model 212.0/1
with code 489 (AIRMATIC)
When replacing AIRmatic compressor (A9/1).

AR32.22-P-2001-04EW



Check

12

Check elastomer bearings (7) of AIRmatic compressor (A9/1)

If the elastomer bearings (7) are hardened or damaged:



Replace elastomer bearings(7).

AR32.22-P-2011EW

13

Install in the reverse order

14

Replace AIRmatic relay

When replacing AIRmatic compressor (A9/1).



Fuse and relay box, as-built configuration

Model 218
with code 488 (Steel/air suspension)
Model 218
with code 489 (AIRMATIC)

GF54.15-P-0800FQ



Fuse and relay box, as-built configuration

Model 212
with code 488 (Steel/air suspension)
Model 212
with code 489 (AIRMATIC)

GF54.15-P-0800FL

 When replacing the AIRmatic compressor (A9/1), always replace the AIRmatic relay, as its switching contacts may have been damaged previously.



Check

15

Check AIRmatic or steel/air suspension for leaktightness

Model 212
with code 488 (Steel/air suspension)
Model 212
with code 489 (AIRMATIC)

AR32.22-P-8100EW

Model 218
with code 488 (Steel/air suspension)
Model 218
with code 489 (AIRMATIC)

AR32.22-P-8100EL

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

16

Perform engine test run and check AIRmatic or steel/air suspension for proper operation

 Air suspension

Number

Designation

Model 212

Model 218

BA32.22-P-1001-03E

Nut, compressor mounting to compressor unit bracket

Nm

6

6

 Air suspension

Number

Designation

Model 212

Model 218

BA32.22-P-1007-03E

Pressure line to compressor/valve unit

Nm

3,5 (0,5)

3,5 (0,5)