ar3222p2001rt

Remove/install compressor

Type ar · topic 32.22 · version 0401 · 2012-05-09

Applies to: MODEL 251 with CODE (488) Steel/air suspension with CODE (489) AIRmatic (air suspension with level adjustment and adaptive damping system ADS )

Where it sits

Function group 2 Chassis › 32 Suspension › 32.22 Air suspension — Series 251

EinPAS 20 Chassis › 20.16 Suspension › 20.16.31 Pressure generation/container/control block — Series 251

AR32.22-P-2001RT

Remove/install compressor

3.5.12

MODEL 251
with CODE (488) Steel/air suspension
with CODE (489) AIRmatic (air suspension with level adjustment and adaptive damping system ADS )

Remove/install compressor

P32.22-2355-06

Shown on vehicle with code 489 AIRmatic (air suspension with level adjustment and adaptive damping system ADS)

1 Electrical connectors

2 Pressure line

3 Clamp

A9/1 AIRmatic compressor unit

Remove/install compressor

Shown on vehicle with code 489 AIRmatic (air suspension with level adjustment and adaptive damping system ADS)

4 Nuts

A9/1 AIRmatic compressor unit

P32.22-2356-03

Modification notes

12.11.08

Value changed: Nut, compressor to bracket

*BA32.22-P-1001-03C

Remove/install

Danger!

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

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

AS00.00-Z-0010-01A

Notes on AIRmatic

AH32.22-P-1000-02RT

1

Jack up vehicle until the wheels are clear of the ground

AR00.60-P-1000RT

2

Remove fender liner front section in front fender

Front section of fender liner in right front fender.

AR88.10-P-1310RT

3

Separate electrical connectors (1)

4

Detach pressure line (2) from the AIRmatic compressor unit (A9/1)

Seal off the pressure line (2) using a blind plug for the duration of the repair work.

If pressure line connections or pressure lines (2) are damaged:

Repair pressure line connection, see Repair AIRmatic pressure line connection.

AR32.22-P-2001-02RT

*BA32.22-P-1002-03C

Socket wrench bit

*211589000900

Knife

*000589122800

Leak detection spray

*BR00.45-Z-1002-03A

for USA

*BR00.45-Z-1004-03A

5

Loosen clamp (3) and seal intake hose

6

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

*BA32.22-P-1001-03C

7

Detach AIRmatic relay (K67)

Only when installing a new AIRmatic compressor unit (A9/1).

When replacing, the AIRmatic relay should always also be replaced (K67) as the switching contacts may be predamaged.

Relay assignment of fuse and relay box in right engine compartment

GF54.15-P-1257-02RT

8

Install in the reverse order

9

Check air suspension for leaks

See Check AIRmatic for leaktightness.

AR32.22-P-8100RT

Air suspension

Number

Designation

Model 251 with all-round level control system
(code 489)

Model 251 without all-round level control system
(code 489)

BA32.22-P-1001-03C

Nut, compressor to bracket

Nm

3

3

BA32.22-P-1002-03C

Pressure line, air suspension to compressor

Nm

3.5

3.5

Remove/install compressor
Remove/install compressor

211 589 00 09 00

Wrench socket

Slitting knife

000 589 12 28 00

Repair materials

Number

Designation

Order number

BR00.45-Z-1002-03A

Leak detection spray

Christof Fischer GmbH,
Augsburger Str. 289-293,
70327 Stuttgart
Germany
Tel. +49 711 30502-0
Fax +49 711 30502-10
www.kaeltefischer.de

BR00.45-Z-1004-03A

Leakage spray for USA

LIQUI MOLY
Gary Boyd
1820 Clark Avenue

Long Beach, CA 90815
USA
Tel. +1 562 5975519

Fax + 1 562 5975269
www.liqui-moly.com

Referenced documents