P-2807
DUNLOP AIR SUSPENSION COMPRESSOR
FOR 2005-2009 LAND ROVER DISCOVERY (LR3)
FOR 2010-2013 LAND ROVER DISCOVERY (LR4)
FOR 2005-2013 LAND ROVER RANGE ROVER SPORT
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
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
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.
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.
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 ASSEMBLY REMOVAL
1. Open the hood and locate the fuse box/battery cover. (FIGURE 10-1)
2. Remove the fuse box covers and air suspension compressor relay. (FIGURES 10-2, 10-3, 10-4)
3. Set steering to straight.
5. Remove rear left wheel to access the air suspension compressor. (FIGURE 10-5)
6. Locate and remove the three (3) bolts holding the compressor cover to the vehicle. (FIGURES 10-6,
10-7, 10-8)
7. Separate the five (5) clips and remove the cover to expose the air suspension compressor.
(FIGURES 10-9, 10-10)
8. Disconnect the two (2) electrical plugs from the vehicle to the compressor. (FIGURES 10-11, 10-12)
9. Remove the air hose at the front of the compressor by pushing in the quick connect fitting and
pulling out the air hose. (FIGURE 10-13)
10. Remove the two (2) air hoses at the back of the compressor by pushing in the quick connect
fittings and pulling out the air hoses. (FIGURE 10-14)
11. Locate and remove the three (3) bolts holding the compressor/bracket assembly to the vehicle.
Save these bolts for re-installation. (FIGURES 10-15, 10-16, 10-17)
12. Remove the compressor/bracket assembly from the vehicle. (FIGURE 10-18)
13. Remove the factory mounting hardware and compressor from the mounting bracket.
AIR SUSPENSION COMPRESSOR INSTALLATION
Tighten all nuts and bolts to manufacturer's specifications during the installation process.
1. Install the new compressor into the mounting bracket using the factory mounting hardware.
AIR SUSPENSION COMPRESSOR INSTALLATION
Tighten all nuts and bolts to manufacturer's specifications during the installation process.
1. Install the new compressor assembly into the vehicle in the reverse order of removal.
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.
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