ARNOTT C-2242 User Manual REV 2

C-2242

ARNOTT COIL SPRING CONVERSION KIT

FOR 1999-2006

MERCEDES-BENZ S-CLASS (W220 CHASSIS)

Congratulations on your purchase of an Arnott® air suspension product. We at Arnott Incorporated are proud
to offer a high quality product at the industry’s most competitive pricing. Thank you for your condence in us

and our product.

Proper installation is essential to experience and appreciate the benets of this system. Please take a moment

to review these installation instructions before you begin to install these components on your vehicle. The

removal and installation of air suspension products should only be performed by a fully qualied, ASE

Certied, professional.

It is equally important to be aware of all necessary safety measures while installing your new Air Suspension

System. This includes proper lifting and immobilizing of the vehicle and isolation of any stored energy to

prevent personal injury or property damage.

"Engineered to Ride, Built to Last™"

WARNING:

and disconnect power to the air suspension system prior to disassembly. Do not allow dirt or grease to enter the system.
Always wear standard protective hand, ear, and eye protection when servicing the air suspension system.

The air suspension system is under pressure (up to 10 bar, or 150 lbf/in). Verify pressure has been relieved

KIT CONTAINS:

PARTS LIST

P/N QTY DESCRIPTION

21-4410 1 ARNOTT FRONT COIL SPRING CONVERSION

21-4401 1 ARNOTT REAR COIL SPRING CONVERSION

21-4634 1 ACCESSORY KIT

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 [e-mail]

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ARNOTT COIL SPRING CONVERSION KIT

FOR 1999-2006

MERCEDES-BENZ S-CLASS (W220 CHASSIS)

GENERAL INFORMATION:

Reading this manual signies your agreement to the terms of the general release, waiver of liability, and hold harmless agreement,
the full text of which is available at www.arnottinc.com.

• Not to be stored below 5oF (-15oC) and above 122oF (50oC).

• Avoid damage to air lines and cables.

• Removal and installation is only to be performed by fully qualied personnel.

• Use car manufacturer’s diagnostic software.

CAUTION:

in the instructions or in a different sequence.

Damage to the vehicle and air suspension system can be incurred if work is carried out in a manner other than specied

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 WHEEL.

4. DISCONNECT THE SHOCK CONTROL CABLE CONNECTOR LOCATED IN THE FENDER WELL. (FIGURE 10-1)

FIGURE 10-1

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FOR 1999-2006

MERCEDES-BENZ S-CLASS (W220 CHASSIS)

5. LOOSEN THE TWO (2) SET SCREWS (180 DEGREES APART) LOCATED ON THE BOTTOM OF THE SHOCK ASSEMBLY.
(FIGURE 10-2)

FIGURE 10-2

6. RAISE HOOD AND DISCONNECT THE AIR SUPPLY LINE TO THE SHOCK ASSEMBLY. (FIGURE 10-3)

FIGURE 10-3

7. REMOVE THE THREE (3) NUTS HOLDING THE TOP MOUNT OF THE SHOCK. (FIGURE 10-4)

FIGURE 10-4

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8. SEPARATE UPPER CONTROL ARM BALL JOINT FROM THE SPINDLE ASSEMBLY AND REMOVE THE AIR STRUT.
(FIGURE 10-5)

FIGURE 10-5

9. REMOVAL COMPLETE.

FRONT COIL STRUT INSTALLATION

Tighten all nuts and bolts to manufacturer's specications during the installation process.

1. INSTALLATION IS IN REVERSE ORDER OF FRONT AIR STRUT REMOVAL.

REAR AIR STRUT REMOVAL

1. REMOVE REAR WHEEL.

2. REMOVE THE SIDE COVER OF THE REAR DASH PANEL TO EXPOSE THE TOP OF THE AIR SHOCK (LOCATED IN
THE REAR WINDOW AREA). (FIGURE 20-1)

FIGURE 20-1

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3. DISCONNECT THE AIRLINE AND REMOVE THE 3 MOUNTING NUTS FROM THE TOP OF THE AIR SHOCK. (FIGURE 20-2)

FIGURE 20-2

4. REMOVE RUBBER BOOT AND DISCONNECT ELECTRICAL CONNECTOR LEADING TO THE SHOCK DAMPER
SOLENOID. (FIGURE 20-3).

FIGURE 20-3

5. REMOVE THE BREAK CALIPER RETAINING CLIP. (FIGURE 20-4)

FIGURE 20-4

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6. LOOSEN THE TWO (2) BOLTS ON THE BACKSIDE OF THE CALIPER. (FIGURE 20-5)

FIGURE 20-5

7. DISCONNECT THE SENSOR CONNECTOR AND REMOVE THE SENSOR BRACKET. (FIGURE 20-6)

FIGURE 20-6

8. SECURE THE CALIPER. (FIGURE 20-7)

FIGURE 20-7

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9. DISASSEMBLE THE OUTER SUSPENSION ARM. (FIGURE 20-8)

FIGURE 20-8

10. DISASSEMBLE THE STABILIZER BAR LINK. (FIGURE 20-9)

FIGURE 20-9

11. REMOVE THE BOLT AND NUT CONNECTING THE SHOCK ASSEMBLY TO THE SUSPENSION ARM. (FIGURE 20-10)

FIGURE 20-10

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12. LOOSEN THE LOWER CONTROL BOLT SLIGHTLY (THIS WILL ALLOW THE LOWER CONTROL ARM TO SWING
DOWN. (FIGURE 20-11)

FIGURE 20-11

13. REMOVE SHOCK ASSEMBLY FROM CAR. (FIGURE 20-12)

FIGURE 20-12

14. REMOVAL COMPLETE.

REAR COIL STRUT INSTALLATION

Tighten all nuts and bolts to manufacturer's specications during the installation process.

1. INSTALLATION IS IN REVERSE ORDER OF REAR AIR STRUT REMOVAL.

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ELECTRONIC BYPASS MODULE INSTALLATION

1. LOCATE THE N51 CONTROL MODULE (LOCATED IN THE LEFT SIDE FUSE BOX) VERIFY THAT IT READS
“TEMIC”. (FIGURE 1A)

FIGURE 1A

2. AFTER VERIFYING COMPUTER, DISCONNECT ALL THREE (3) MULTI-PIN CONNECTORS PERMANENTLY. (FIGURE 1B)

FIGURE 1B

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 1C)

FIGURE 1C

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FOR 1999-2006

MERCEDES-BENZ S-CLASS (W220 CHASSIS)

4. RUN THE GROUND WIRE FROM THE ELECTRONIC BYPASS MODULE TO THE NEAREST VEHICLE GROUND
TERMINAL. (FIGURE 1D)

FIGURE 1D

5. LOCATE AN OPEN POWER TERMINAL IN THE FUSE PANEL, INSTALL THE FUSE HOLDER (12+ V). (FIGURE 1E)

6. RE-INSTALL FUSE BOX COVER. (FIGURE 1F)

7. INSTALLATION COMPLETE.

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FIGURE 1E

FIGURE 1F

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