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C-3080
ARNOTT REAR COIL SPRING CONVERSION KIT
FOR MERCEDES-BENZ E-CLASS WAGON W/O ADS (W211)
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.
The air spring(s) contain a solenoid valve. Once inflated, only the “Mercedes DAS Star” diagnostic computer can deflate the air spring(s).
1. Set the steering to straight ahead.
3. Remove the rear wheels. (FIGURES 10-1, 10-2)
4. Locate and remove the electrical plug from the air springs top mount. (FIGURE 10-3)
5. Locate and remove the air line from the air springs top mount. (FIGURES 10-4, 10-5)
6. Loosen and remove the lower shock mounting nut and bolt. (FIGURE 10-6)
7. Loosen and remove the rear control arm nut and bolt. (FIGURE 10-7)
8. Dislocate the air spring’s top mount from the vehicle. (FIGURE 10-8)
9. Loosen and remove the air spring’s lower mounting nut and bolt. (FIGURE 10-9)
10. Remove factory air spring from the vehicle. (FIGURE 10-10)
11. Remove brake pad clip and caliper. Hang in a suitable location. (FIGURES 10-11, 10-12)
12. Remove the lower sway bar end link bolt. (FIGURES 10-13, 10-14)
13. Loosen and remove the front control arm bolt. (FIGURES 10-15, 10-16)
14. Loosen and remove upper control arm bolt. (FIGURE 10-17)
15. Loosen and remove lower control arm bolt. (FIGURES 10-18, 10-19)
Tighten all nuts and bolts to manufacturer's specifications during the installation process.
1. Install the lower spring perches into the lower control arms, and secure. (FIGURES 20-1, 20-2)
2. Remove old top mount clips and replace with the ones provided in the kit. (FIGURES 20-3, 20-4)
3. Install the upper spring perches onto the new clips. (FIGURES 20-5, 20-6)
4. Pull down on lower control arm and install spring into the top spring perch. (FIGURE 20-7)
5. Slide spring over the hump of the lower spring perch. (FIGURE 20-8)
6. 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 20-9, 20-10)
7. Installation of control arms, sway bar end link, brake calipers and wheels is in reverse order of removal.
THE LOWER CONTROL ARM BOLT SLEEVE MAY NEED TO BE ADJUSTED WHEN INSTALLING THE LOWER CONTROL ARM.
8. Installation of rear springs complete.
It is nesessary to have your vehicle aligned after installing this kit.
1. Remove the fuse box cover plate on the side of the dashboard, then remove the 5 amp fuse in the gray fuse holder. (FIGURES 1-4)
2. Remove the front passenger side floor mat. (FIGURE 5)
3. Pull back the kick panel and remove the foam insulation beneath. (FIGURES 6-7)
4. Locate and remove the three nuts holding the metal shield. (FIGURE 8)
5. Remove the metal shield and rest it on the floor to expose the vehicles air suspension control module. (FIGURE 9)
6. Remove the connector from the air suspension module and the tape around the wiring. Make space for cutting. Cut wire positions No.4 green, and No.14 green/white. (FIGURES 10-12)
7. Take the EBM and twist the wiring from the EBM with the color green and yellow together. This prevents interference in canbus signal. (FIGURES 13, 14)
8. Connect wiring of the EBM to the wiring harness of the car. No.4 green color from car wire harness to EBM cable color green. No.14 green/white color from car wire harness to EBM cable color yellow. (FIGURES 15-16)
ELECTRONIC BYPASS MODULE
FROM
TO (PIN)
VEHICLE’S WIRING HARNESS
GREEN
NO.4 GREEN
YELLOW
NO.14 GREEN/WHITE
9. Take the supplied wire connectors and attach them to wire No.10 brown and No.20 red/white of the cars wire harness. Then connect the wires of the EBM to the wire harness of the car. No.10 brown of the car wire harness to EBM color black and No.20 red/white of the car wire harness to EBM color red. (FIGURES 17-19)
ELECTRONIC BYPASS MODULE
FROM
TO (PIN)
VEHICLE’S WIRING HARNESS
BLACK
NO.10 BROWN
RED
NO.20 RED/WHITE
10. Remove protective film from adhesive strips on the back of the EBM and fuse holder and paste it at the location indicated in the photo. Then, tape the wire harness back neatly so there are no loose or unprotected cables. (FIGURES 20-22)
11. Replace the fuse from Step 1 along with the cover. Start the car and check if the headlights move up and down. If they do not, put light switch on auto and restart the car. (FIGURES 23-25)
12. Installation complete.