ARNOTT AS-2606 User Manual REV 2

AS-2606

ARNOTT REAR AIR STRUT

FOR 1999-2006 MERCEDES-BENZ S-CLASS

(W220 CHASSIS) W/O ABC

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 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

21-4073 1 ARNOTT REAR AIR STRUT

21-6938 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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AS-2606 REV 2 02/06/2014

AS-2606

ARNOTT REAR AIR STRUT

FOR 1999-2006 MERCEDES-BENZ S-CLASS

(W220 CHASSIS) W/O ABC

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.

AIR STRUT REMOVAL

1. SET STEERING TO STRAIGHT AHEAD.

2. RAISE THE VEHICLE.

3. REMOVE REAR WHEEL.

4. REMOVE THE SIDE COVER OF THE REAR DASH PANEL TO EXPOSE THE TOP OF THE AIR SHOCK (LOCATED IN
THE REAR WINDOW AREA). (FIGURE A)

FIGURE A

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AS-2606 REV 2 02/06/2014

AS-2606

ARNOTT REAR AIR STRUT

FOR 1999-2006 MERCEDES-BENZ S-CLASS

(W220 CHASSIS) W/O ABC

6. LOOSEN AND REMOVE THE 3 MOUNTING NUTS FROM THE TOP OF THE AIR STRUT. DISCONNECT THE
AIR LINE. REMOVE THE AIR LINE FITTING FROM THE AIR HOSE AND DISCARD. (FIGURE B)

FIGURE B

7. REMOVE RUBBER BOOT AND DISCONNECT ELECTRICAL CONNECTOR LEADING TO THE SHOCK DAMPER
SOLENOID. (FIGURE C).

FIGURE C

8. REMOVE THE BREAK CALIPER RETAINING CLIP. (FIGURE D)

FIGURE D

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AS-2606 REV 2 02/06/2014

AS-2606

ARNOTT REAR AIR STRUT

FOR 1999-2006 MERCEDES-BENZ S-CLASS

(W220 CHASSIS) W/O ABC

9. LOOSEN THE TWO (2) BOLTS ON THE BACKSIDE OF THE CALIPER. (FIGURE E)

FIGURE E

10. DISCONNECT THE SENSOR CONNECTOR AND REMOVE THE SENSOR BRACKET. (FIGURE F)

FIGURE F

11. SECURE THE CALIPER. (FIGURE G)

FIGURE G

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AS-2606 REV 2 02/06/2014

AS-2606

ARNOTT REAR AIR STRUT

FOR 1999-2006 MERCEDES-BENZ S-CLASS

(W220 CHASSIS) W/O ABC

12. DISASSEMBLE THE OUTER SUSPENSION ARM. (FIGURE H)

FIGURE H

13. DISASSEMBLE THE STABILIZER BAR LINK. (FIGURE I)

FIGURE I

14. REMOVE THE BOLT AND NUT CONNECTING THE SHOCK ASSEMBLY TO THE SUSPENSION ARM. (FIGURE J)

FIGURE J

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AS-2606 REV 2 02/06/2014

AS-2606

ARNOTT REAR AIR STRUT

FOR 1999-2006 MERCEDES-BENZ S-CLASS

(W220 CHASSIS) W/O ABC

15. LOOSEN THE LOWER CONTROL BOLT SLIGHTLY (THIS WILL ALLOW THE LOWER CONTROL ARM TO SWING
DOWN). (FIGURE K)

FIGURE K

16. REMOVE SHOCK ASSEMBLY FROM CAR. (FIGURE L)

FIGURE L

AIR STRUT INSTALLATION

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

Do not remove the air tting from the air strut. Doing so may cause damage and/or void warranty. Remove the white
shipping pin from the new air tting and insert the air line until fully seated.

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

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AS-2606 REV 2 02/06/2014