0 C-2242 ARNOTT COIL SPRING CONVERSION KIT FOR MERCEDES-BENZ S-CLASS (W220)

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.

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

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.

FRONT AIR STRUT REMOVAL

1. Set steering to straight ahead.

2. Raise the vehicle.

3. Remove front wheels.

4. Disconnect the shock control cable connector located in the fender well. (FIGURE 1)

5. Loosen the two (2) set screws (180 degrees apart) located on the bottom of the strut assembly. (FIGURE 2)

6. Raise hood and disconnect the air supply line to the strut assembly. (FIGURE 3)

7. Remove the three (3) nuts holding the top mount of the strut. (FIGURE 4)

8. Separate upper control arm ball joint from the spindle assembly and remove the air strut. (FIGURE 5)

9. Removal complete.

FRONT COIL STRUT INSTALLATION

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

1. Install the strut into the vehicle, being sure to seat the ball joint into the lower mount. (FIGURES 6, 7)

2. Reattach the upper control arm to the spindle assembly and reinstall the nut, tightening to manufacturer’s specifications. (FIGURES 8, 9)

3. Reinstall the three top shock mounting nuts and tighten to manufacturer’s specifications. (FIGURE 10)

4. Tighten the two set screws to manufacturer’s specifications. (FIGURE 11)

5. Installation complete.

REAR AIR STRUT REMOVAL

1. Remove rear wheels.

2. Remove the side cover of the rear dash panel to expose the top of the air strut (located in the rear window area). (FIGURES 12, 13)

3. Disconnect the airline and remove the three (3) mounting nuts from the top of the air strut. (FIGURE 14)

4. Remove rubber boot and disconnect electrical connector leading to the shock damper solenoid. (FIGURES 15, 16)

5. Remove the brake caliper retaining clip. (FIGURE 17)

6. Loosen the two (2) bolts on the backside of the caliper. (FIGURE 18)

7. Disconnect the sensor connector and remove the sensor bracket. (FIGURES 20, 21)

8. Secure the caliper. (FIGURE 22)

9. Disassemble the outer suspension arm. (FIGURE 23)

10. Disassemble the sway bar end link. (FIGURES 23, 24)

11. Remove the nut and bolt connecting the strut assembly to the suspension arm. (FIGURE 25)

12. Loosen the lower control arm nut slightly (this will allow the lower control arm to swing down). (FIGURE 26)

13. Remove strut assembly from the vehicle. (FIGURES 27, 28)

14. Removal complete.

REAR COIL STRUT INSTALLATION

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

1. Install the shock into the vehicle. (FIGURE 29)

2. Install the lower shock mounting bolt and nut and tighten to manufacturer’s specifications. (FIGURE 30)

3. Reinstall the three top shock mounting nuts and tighten to manufacturer’s specifications. (FIGURE 31)

4. Reinstall the lower control arm nut and bolt and tighten to manufacturer’s specifications. (FIGURE 32)

5. Reinstall the upper and lower sway bar end link nuts and tighten to manufacturer’s specifications. (FIGURES 33, 34)

6. Retighten the outer suspension arm nut and tighten to manufacturer’s specifications. (FIGURE 35)

7. Reinstall the brake caliper. (FIGURE 36)

8. Install the brake caliper bolts and tighten to manufacturer’s specifications. (FIGURE 37)

9. Install the brake caliper clip. (FIGURE 38)

10. Install the sensor bracket. (FIGURES 39, 40)

11. Reinstall the wheel.

12. Lower the vehicle.

13. Installation complete.

ELECTRONIC BYPASS MODULE INSTALLATION

1. Locate the N51 control module (located in the left side fuse box) verify that it reads “TEMIC”. (FIGURES 41, 42)

2. After verifying computer, disconnect all three (3) multi-pin connectors permanently. (FIGURES 43, 44)

3. Connect light blue connector from electronic bypass module to the wire harness side of the vehicle n-51 can-bus 2 pin connector. (FIGURE 45)

4. Run the ground wire from the electronic bypass module to the nearest vehicle ground terminal. (FIGURE 46)

5. Locate an available switched ignition power source in the fuse panel, and install the fuse holder (12+V). (FIGURE 47)

6. Re-install fuse box cover. (FIGURE 48)

7. Installation complete.