Arnott Installation Manuals
P-2740
WABCO OES AIR SUSPENSION COMPRESSOR
FOR 2003-2012 BENTLEY CONTINENTAL GT
FOR 2006-2012 BENTLEY FLYING SPUR
FOR 2004-2006 VW PHAETON

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 confidence in us and our product.

Proper installation is essential to experience and appreciate the benefits 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 qualified, ASE Certified, 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®"

P-2740 WABCO OES Air Suspension Compressor

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

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 www.arnottinc.com

GENERAL INFORMATION:

Reading this manual signifies 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 5°F (-15°C) or above 122°F (50°C).

Avoid damage to air lines and cables.

Removal and installation is only to be performed by fully qualified personnel.

Use car manufacturer’s diagnostic software.

CAUTION: Damage to the vehicle and air suspension system can be incurred if work is carried out in a manner other than specified in the instructions or in a different sequence.

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

WARNING: 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.

COMPRESSOR ASSEMBLY REMOVAL

1. Set steering to straight ahead.

2. Raise vehicle.

3. Loosen and remove the fasteners holding the cover towards the rear of the vehicle to expose the vehicles air suspension compressor assembly. (FIGURES 1, 2)

FIGURE 1
FIGURE 1
FIGURE 2
FIGURE 2

4. Remove the wiring harness clips from the compressor assembly. (FIGURE 3)

FIGURE 3
FIGURE 3

5. Disconnect the three (3) electrical plugs from the compressor assembly to the vehicle. (FIGURES 4, 5)

FIGURE 1
FIGURE 1
FIGURE 2
FIGURE 2

6. Slowly loosen and remove five (5) air lines leading from the vehicle to the valve block. The black air line from the compressor to the valve block does not need to be removed. (FIGURES 6, 7)

FIGURE 6
FIGURE 6
FIGURE 7
FIGURE 7

7. Remove the air lines from the retaining clips. (FIGURE 8)

FIGURE 8
FIGURE 8

8. Locate the rubber hose. Slide the spring clamp down the hose. (FIGURE 9)

FIGURE 9
FIGURE 9

9. Separate the rubber hose from t-fitting. (FIGURE 10)

FIGURE 10
FIGURE 10

10. Remove the three (3) mounting bolts and hardware holding the compressor assembly to the vehicle. (FIGURES 11, 12)

FIGURE 11
FIGURE 11
FIGURE 12
FIGURE 12

11. Remove the compressor assembly from the vehicle. (FIGURE 13)

FIGURE 13
FIGURE 13

12. Removal complete.

AIR SUSPENSION COMPRESSOR REMOVAL

1. Set the pump assembly on a work bench and begin by removing the air line fitting from the compressor. Remove the air line fitting from the air hose and discard. (FIGURE 14)

FIGURE 14
FIGURE 14

2. Remove the wiring harness and plugs from the mounting clips. (FIGURES 15, 16)

FIGURE 15
FIGURE 15
FIGURE 16
FIGURE 16

3. Remove the three (3) mounting bolts before removing the compressor from the mounting bracket. Set mounting bracket aside. (FIGURES 17, 18)

FIGURE 17
FIGURE 17
FIGURE 18
FIGURE 18

4. Remove the two (2) screws and metal shield from the old compressor and install onto the new one. (FIGURES 19, 20)

FIGURE 19
FIGURE 19
FIGURE 20
FIGURE 20

5. Remove the long compressor bolt holding the airline mounting clips and reinstall them onto the new compressor. (FIGURES 21, 22)

FIGURE 21
FIGURE 21
FIGURE 22
FIGURE 22

AIR SUSPENSION COMPRESSOR INSTALLATION

1. Route the compressors wiring harness underneath the valve block, and through the mounting bracket as shown. (FIGURE 23)

FIGURE 23
FIGURE 23

2. Install the new compressor into the mounting bracket and secure with the three (3) mounting bolts. (FIGURE 24)

FIGURE 24
FIGURE 24

3. Remove the white shipping pin and install the air line from the valve block to the new compressor. (FIGURES 25, 26)

FIGURE 25
FIGURE 25
FIGURE 26
FIGURE 26

4. Route the compressors wiring harness as shown and mount the plugs to the mounting clip. (FIGURES 27, 28)

FIGURE 27
FIGURE 27
FIGURE 28
FIGURE 28

5. Installation complete.

COMPRESSOR ASSEMBLY INSTALLATION

WARNING: Tighten all nuts and bolts to manufacturer's specifications during the installation process.

1. Installation is in reverse order of air compressor assembly removal.


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

Cracked Air Spring
Cracked Air Spring
Cracked Air Spring

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 www.arnottinc.com

P-2740 REV 3 06/05/2018