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C-2663
ARNOTT EIBACH COIL SPRING CONVERSION KIT
2003-2009 MERCEDES-BENZ E-CLASS w/4-MATIC, WAGON w/ADS
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 steering to straight ahead.
3. Remove the applicable wheel. (FIGURE 1)
4. Remove the air line. (FIGURE 2)
5. Disconnect the electrical connection. (FIGURE 3)
6. Remove the three top mounting nuts from the strut. (FIGURE 4)
7. Remove the wires from the wire clip on the sway bar end link. (FIGURES 5, 6)
8. Follow the wiring from the shock and disconnect at the junction. (FIGURE 7)
9. Remove the brake line isolator. (FIGURE 8)
10. Remove the sway bar end link nut. (FIGURE 9)
11. Loosen the bottom mount bolt. (FIGURE 10)
12. Remove the bottom mount bolt. (FIGURE 11)
13. Remove the control arm nut. (FIGURE 12)
14. Remove the axle bolt. (FIGURES 13, 14)
15. Remove the axle. (FIGURES 15, 16)
16. Remove the strut from the vehicle. (FIGURE 17)
FRONT COIL STRUT INSTALLATION
Tighten all nuts and bolts to manufacturer's specifications during the installation process.
1. Install the strut into the vehicle. (FIGURE 18)
2. Reinstall the axle. (FIGURES 19, 20)
3. Reattach the control arm to the spindle assembly and tighten to manufacturer’s specifications. (FIGURES 21, 22)
4. Reinstall the upper sway bar end link to the spindle and tighten to manufacturer’s specifications. (FIGURES 23, 24)
5. Reinstall the axle bolt and tighten to manufacturer’s specifications. (FIGURE 25)
6. Reinstall the bottom mount bolt and tighten to manufacturer’s specifications. (FIGURE 26)
7. Reinstall the brake line isolator. (FIGURE 27)
8. Reattach the wires to the wire clip on the sway bar end link. (FIGURE 28, 29)
9. Install the three top mounting nuts to the top of the strut and tighten to manufacturer’s specifications. (FIGURE 30)
10. Reinstall the wheel. (FIGURE 31)
11. Installation complete.
REAR SHOCK AND AIR SPRING REMOVAL
1. Prior to raising vehicle, remove applicable rear side compartment trim to gain access to shock tower. (FIGURE 32)
2. Remove wheel. (FIGURE 33)
3. Deflate air spring using a system diagnostic tool.
4. If applicable, use OEM tool and remove the top nut of shock. (FIGURES 34, 35)
5. Remove bottom shock nut/bolt. (FIGURE 36)
6. Compress shock and remove from vehicle. (FIGURES 37, 38)
7. Locate and remove the electrical plug from the air springs top mount. (FIGURE 39)
8. Locate and remove the air line from the air springs top mount. (FIGURES 40, 41)
9. Loosen and remove the rear control arm nut and bolt. (FIGURE 42)
10. Dislocate the air spring’s top mount from the vehicle. (FIGURE 43)
11. Loosen and remove the air spring’s lower mounting nut and bolt. (FIGURE 44)
12. Remove factory air spring from the vehicle by disconnecting the factory rubber hose leading from the air spring to the air spring’s reservoir. Secure the hose in a suitable location away from any moving parts or components with excessive heat. (FIGURE 45)
REAR COIL AND SHOCK INSTALLATION
Tighten all nuts and bolts to manufacturer's specifications during the installation process.
1. Install the new shocks into the top mounts and secure. (FIGURE 46)
2. Remove old top mount clips and replace with the ones provided in the kit. (FIGURES 47, 48)
3. Install the upper spring seats onto the new clips. (FIGURES 49, 50)
4. Install the lower spring perches into the lower control arms, and secure. (FIGURES 51, 52)
PAY SPECIAL ATTENTION TO THE "FACING WHEEL" LABEL ON THE PERCHES TO ORIENT THEM PROPERLY WITHIN THE LOWER CONTROL ARMS.
5. Loosen and remove the lower sway bar end link bolt. (FIGURES 53, 54)
6. Loosen and remove rear trailing arm bolt. (FIGURES 55, 56)
7. Loosen and remove the front trailing arm bolt. (FIGURES 57, 58)
8. Loosen and remove the upper control arm bolt from the spindle assembly. (FIGURE 59)
9. Loosen and remove lower control arm bolt. (FIGURES 60, 61)
10. Pull down on lower control arm and install the spring into the top spring seat. (FIGURE 62)
11. Slide the spring over the hump of the lower spring perch. (FIGURE 63)
12. Using a stand or jack, raise the lower control arm to compress the spring and install the lower shock bolt to hold in place. (FIGURES 64, 65)
THE LOWER CONTROL ARM BOLT SLEEVE MAY NEED TO BE ADJUSTED WHEN REINSTALLING THE LOWER CONTROL ARM.
13. Reinstall and tighten the lower control arm bolt. (FIGURES 66, 67)
14. Reinstall and tighten the upper control arm bolt from the spindle assembly. (FIGURE 68)
15. Reinstall and tighten the front trailing arm bolt. (FIGURES 69, 70)
16. Reinstall and tighten the rear trailing arm bolt. (FIGURES 71, 72)
17. Reinstall and tighten the lower sway bar end link bolt. (FIGURES 73, 74)
18. Installation of rear springs and shocks complete.
It is nesessary to have your vehicle aligned after installing this kit.
ELECTRONIC BYPASS MODULE INSTALLATION
1. Begin by removing the front passenger side floor mat. (FIGURE 75)
2. Pull back the kick panel and remove the foam insulation beneath. (FIGURES 76, 77)
3. Locate and remove the three nuts holding the metal shield. (FIGURE 78)
4. Remove the metal shield and rest it on the floor to expose the vehicles air suspension control module. (FIGURE 79)
5. Locate the vehicles air suspension control module mounted on the metal shield. Disconnect all three (two large and one small) plugs connected to the side. (FIGURES 80, 81)
6. Locate a suitable ground and install the black wire from the electronic bypass modules wiring harness. (FIGURES 82, 83)
7. Locate the positive 12 volt power source and install the red wire from the electronic bypass modules wiring harness. (FIGURES 84, 85, 86)
8. Locate the small, two wire plug from the vehicles wiring harness and plug it into the electronic bypass modules wiring harness. (FIGURE 87)
9. Plug the new wiring harness into the electronic bypass module. (FIGURE 88)
10. Secure the electronic bypass module in a suitable location and reinstall all panels in reverse order of which they were disassembled. (FIGURE 89)
11. Electronic bypass module installation complete.
DO NOT PLUG THE FACTORY WIRING HARNESS BACK INTO THE VEHICLES AIR SUSPENSION CONTROL MODULE.