ARNOTT P-2539 User Manual REV 5

P-2539

WABCO OES AIR SUSPENSION COMPRESSOR

FOR 2002-2009

AUDI A8

Congratulations on your purchase of an Arnott® air suspension product. We at Arnott Incorporated are proud
to offer a high quality product at the industry’s most competitive pricing. Thank you for your condence in us

and our product.

Proper installation is essential to experience and appreciate the benets of this system. Please take a moment

to review these installation instructions before you begin to install these components on your vehicle. The

removal and installation of air suspension products should only be performed by a fully qualied, ASE

Certied, professional.

It is equally important to be aware of all necessary safety measures while installing your new Air Suspension

System. This includes proper lifting and immobilizing of the vehicle and isolation of any stored energy to

prevent personal injury or property damage.

"Engineered to Ride, Built to Last™"

WARNING:

and disconnect power to the air suspension system prior to disassembly. Do not allow dirt or grease to enter the system.
Always wear standard hand, ear, and eye protection when servicing the air suspension system.

The air suspension system is under pressure (up to 10 bar, or 150 lbf/in). Verify pressure has been relieved

KIT CONTAINS:

PARTS LIST

P/N QTY DESCRIPTION

21-6293 1 WABCO OES AIR SUSPENSION COMPRESSOR

21-6586 1 ACCESSORY KIT

Arnott® is committed to the quality of its products. If you have a question or problem with any Arnott product,
please contact Arnott by calling 800-251-8993 during normal business hours or email [e-mail]

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P-2539

WABCO OES AIR SUSPENSION COMPRESSOR

FOR 2002-2009

AUDI A8

GENERAL INFORMATION:

Reading this manual signies your agreement to the terms of the general release, waiver of liability, and hold harmless agreement,
the full text of which is available at www.arnottinc.com.

• Not to be stored below 5oF (-15oC) and above 122oF (50oC).

• Avoid damage to air lines and cables.

• Removal and installation is only to be performed by fully qualied personnel.

• Use car manufacturer’s diagnostic software.

CAUTION:

in the instructions or in a different sequence.

Damage to the vehicle and air suspension system can be incurred if work is carried out in a manner other than specied

To avoid the possibility of short circuits while working with electric components consult your owner's manual on how to
disconnect your battery.

Consult your vehicle owner's manual, service manual, or car dealer for the correct jacking points on your vehicle and for
additional care, safety and maintenance instructions. Under no circumstances should any work be completed underneath
the vehicle if it is not adequately supported, as serious injuries and death can occur.

AIR SUSPENSION COMPRESSOR REMOVAL

NOTE:

THE COMPRESSOR IS LOCATED ON THE VEHICLES DRIVERS SIDE BEHIND THE
FRONT BUMPER. (FIGURE A)

FIGURE A

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WABCO OES AIR SUSPENSION COMPRESSOR

FOR 2002-2009

AUDI A8

1. SET STEERING TO STRAIGHT AHEAD.

2. RAISE VEHICLE.

3. REMOVE FRONT LEFT WHEEL. (FIGURE B AND FIGURE C)

FIGURE B

FIGURE C

4. LOCATE AND REMOVE THE SCREWS FROM THE INNER FENDER WELL. (FIGURE D)

FIGURE D

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WABCO OES AIR SUSPENSION COMPRESSOR

FOR 2002-2009

AUDI A8

5. REMOVE INNER FENDER WELL FROM VEHICLE. (FIGURE E)

FIGURE E

6. LOOSEN AND REMOVE SKID PLATE FASTENERS AND REMOVE THE SKID PLATE TO EXPOSE VEHICLE'S AIR
SUSPENSION COMPRESSOR. (FIGURE F)

FIGURE F

7. LOCATE AND DISCONNECT ALL THREE ELECTRICAL PLUGS FROM THE COMPRESSOR. (FIGURE G)

FIGURE G

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WABCO OES AIR SUSPENSION COMPRESSOR

FOR 2002-2009

AUDI A8

8. LOCATE AND REMOVE THE AIR LINE. REMOVE THE AIR LINE FITTING FROM THE AIR HOSE AND DISCARD. (FIGURE H)

FIGURE H

9. LOCATE THE INTAKE TUBE. SLIDE THE SPRING CLAMP DOWN THE HOSE AND DISCONNECT FROM
THE COMPRESSOR. (FIGURE I)

FIGURE I

10. LOCATE AND REMOVE THE THREE MOUNTING NUTS ALONG WITH THE MOUNTING HARDWARE. (FIGURE J,
FIGURE K, FIGURE L)

FIGURE J

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WABCO OES AIR SUSPENSION COMPRESSOR

FOR 2002-2009

AUDI A8

FIGURE K

FIGURE L

AIR SUSPENSION COMPRESSOR INSTALLATION

Tighten all nuts and bolts to manufacturer's specications during the installation process.

Do not remove the air tting from the air suspension compressor. Doing so may cause damage and/or void warranty.
Remove the white shipping pin from the new air tting and insert the air line until fully seated.

1. INSTALLATION IS IN REVERSE ORDER OF AIR SUSPENSION COMPRESSOR REMOVAL.

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WABCO OES AIR SUSPENSION COMPRESSOR

FOR 2002-2009

AUDI A8

WARNING

CRACKED AIR SPRINGS MUST BE CHANGED

TO VALIDATE THE WARRANTY ON THE COMPRESSOR

PLEASE READ ADDITIONAL WARRANTY INFORMATION ON THE BACK OF YOUR INVOICE

PROPER PROCEDURE FOR ASSESSING YOUR AIR SPRINGS CONDITION:

1. TURN OFF AIR SUSPENSION SWITCH IF EQUIPPED.

2. REFER TO OWNER’S MANUAL FOR PROPER LIFTING TECHNIQUES AND JACKING POINTS.

3. RAISE THE VEHICLE.

4. INSPECT AIR SPRINGS FOR ANY TYPE OF CRACKS OR EXCESSIVE WEAR. CRACKS IN AIR

SPRINGS ARE EVIDENT IF THEY ARE LEAKING. THIS WILL CAUSE THE COMPRESSOR TO

OVERHEAT FROM CONTINUOUS OPERATION.

Arnott® is committed to the quality of its products. If you have a question or problem with any Arnott product,
please contact Arnott by calling 800-251-8993 during normal business hours or email [e-mail]

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