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C-2140
ARNOTT COIL SPRING CONVERSION KIT
FOR 2003-2006
LINCOLN NAVIGATOR/FORD EXPEDITION
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.
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.
1. Set the steering to straight ahead.
3. Remove the front wheels. (FIGURE 10-1)
4. Unplug the electrical connector from the air springs solenoid. (FIGURE 10-2)
5. Remove the air line from the air springs solenoid. Push the collar in to release and pull the air line out. (FIGURE 10-3)
6. Loosen and remove the ball joint nut to separate the ball joint from the spindle assembly. (FIGURES 10-4, 10-5)
7. Loosen and remove the top three (3) mounting nuts and bottom mounting nut/bolt. (FIGURES 10-6, 10-7)
8. Remove the air strut from vehicle. (FIGURE 10-8)
FRONT COIL SPRING INSTALLATION
Tighten all nuts and bolts to manufacturer's specifications during the installation process.
1. Install the coil spring assembly onto the vehicle in reverse order of air strut removal. Secure the air hose and electrical connector in a suitable location.
1. Remove rear wheels. (FIGURE 20-1)
2. Unplug the electrical connector from the air springs solenoid. (FIGURE 20-2)
3. Remove the air line from the air springs solenoid. Push the collar in to release and pull the air line out. (FIGURE 20-3)
4. Loosen and remove the top three (3) mounting nuts and the bottom mounting nut/bolt. (FIGURES 20-4, 20-5)
5. Remove the air strut from vehicle. (FIGURE 20-6)
REAR COIL SPRING INSTALLATION
Tighten all nuts and bolts to manufacturer's specifications during the installation process.
1. Install the coil spring assembly onto the vehicle in reverse order of air strut removal. Secure the air hose and electrical connector in a suitable location.