ARNOTT A-2575 User Manual REV 7

A-2575

ARNOTT FRONT AIR SPRING

FOR 2005-2011 MERCEDES-BENZ ML-CLASS

FOR 2007-2012 MERCEDES-BENZ GL-CLASS

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

21-3689 1 ARNOTT FRONT AIR SPRING

21-6432 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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A-2575

ARNOTT FRONT AIR SPRING

FOR 2005-2011 MERCEDES-BENZ ML-CLASS

FOR 2007-2012 MERCEDES-BENZ GL-CLASS

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.

AIR STRUT REMOVAL

1. SET THE STEERING TO STRAIGHT AHEAD.

2. RAISE THE VEHICLE.

3. REMOVE THE FRONT WHEEL.

4. DISCONNECT THE AIR SHOCK ADS CONTROL CABLE CONNECTOR (LOCATED IN THE FENDER WELL).

5. DISCONNECT THE SWAY BAR ARM LINKAGE (FIGURE A).

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.

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FIGURE A

A-2575

ARNOTT FRONT AIR SPRING

FOR 2005-2011 MERCEDES-BENZ ML-CLASS

FOR 2007-2012 MERCEDES-BENZ GL-CLASS

6. REMOVE THE LOWER SHOCK MOUNTING NUT AND BOLT. (FIGURE B)

FIGURE B

7. REMOVE THE BALL JOINT NUT AND SEPARATE FROM THE UPPER CONTROL ARM. (FIGURE C)

FIGURE C

8. REMOVE THE WIRE HARNESS MOUNT FROM SHOCK. (FIGURE D)

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FIGURE D

ARNOTT FRONT AIR SPRING

FOR 2005-2011 MERCEDES-BENZ ML-CLASS

FOR 2007-2012 MERCEDES-BENZ GL-CLASS

9. DISCONNECT THE AIR LINE. (FIGURE E)

A-2575

FIGURE E

10. REMOVE THE AIR LINE FITTING. TO DO THIS, REMOVE THE COLLET AND THE REMAINING FITTING WILL SLIDE
OFF OF THE AIR HOSE. (FIGURE F)

FIGURE F

11. REMOVE THE THREE (3) TOP FLANGE NUTS. (FIGURE G)

12. REMOVE STRUT.

13. REMOVAL COMPLETE.

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FIGURE G

A-2575

ARNOTT FRONT AIR SPRING

FOR 2005-2011 MERCEDES-BENZ ML-CLASS

FOR 2007-2012 MERCEDES-BENZ GL-CLASS

AIR SPRING REMOVAL

1. OBTAIN FRONT SHOCK ASSEMBLY.

2. PLACE CAP REMOVAL TOOL ONTO THE STUDS OF THE TOP MOUNT OF THE SHOCK ASSEMBLY (THE
BOLT OF THE CAP REMOVAL TOOL WILL REST ON THE CENTER OF THE TOP CAP), INSTALL THE THREE (3)
NUTS THAT MOUNT THE SHOCK TO THE VEHICLE ON TOP OF THE CAP REMOVAL TOO. (FIGURE H)

REMOVAL
TOOL

FIGURE H

3. EVENLY TIGHTEN THE THREE (3) NUTS UNTIL THE TOP CAP MOVES DOWNWARD (THIS WILL ALLOW THE
RETAINING RING TO BE REMOVED). (FIGURE I)

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FIGURE I

A-2575

ARNOTT FRONT AIR SPRING

FOR 2005-2011 MERCEDES-BENZ ML-CLASS

FOR 2007-2012 MERCEDES-BENZ GL-CLASS

4. WITH THE TOP CAP PUSHED DOWN, USE A SMALL FLAT TIP SCREW DRIVER TO REMOVE THE RETAINING
RING. (FIGURE J)

RETAINING
RING

FIGURE J

5. REMOVE THE CAP REMOVAL TOOL.

6. USING A PAIR OF LOCKING PLIERS REMOVE THE TOP CAP. (FIGURE K)

RETAINING
RING

FIGURE K

7. REMOVE THE NUT HOLDING THE AIR SPRING ASSEMBLY TO THE SHOCK. (FIGURE L)

FIGURE L

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A-2575

ARNOTT FRONT AIR SPRING

FOR 2005-2011 MERCEDES-BENZ ML-CLASS

FOR 2007-2012 MERCEDES-BENZ GL-CLASS

8. REMOVE THE OLD AIR SPRING AND O-RING, DISCARD. CLEAN THE AREA WHERE THE NEW AIR SPRING WILL
BE INSTALLED. (FIGURE M)

FIGURE M

AIR SPRING INSTALLATION

1. INSTALL SHOCK CAP INTO PLACE ON THE SHOCK. TAP LIGHTLY WITH A HAMMER TO FULLY SEAT THE CAP.
(FIGURE N)

FIGURE N

2. OBTAIN THE NEW AIR SPRING, APPLY A LUBRICANT TO THE O-RINGS LOCATED IN THE BOTTOM OF THE AIR
SPRING, INSTALL ONTO THE SHOCK. (FIGURE O)

O-RINGS

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FIGURE O

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ARNOTT FRONT AIR SPRING

FOR 2005-2011 MERCEDES-BENZ ML-CLASS

FOR 2007-2012 MERCEDES-BENZ GL-CLASS

3. INSTALL LOCKNUT ONTO SHAFT OF THE SHOCK AND TIGHTEN TO MANUFACTURERS SPECIFICATIONS.
(FIGURE P)

FIGURE P

4. WITH THE NUT SECURED PROPERLY, LUBRICATE THE O-RING BEFORE INSERTING THE SUPPLIED CAP. (FIGURE Q)

FIGURE Q

5. PLACE THE RETAINING RING ON TOP OF THE CAP BEFORE REINSTALLING THE SUPPLIED TOOL. (FIGURE R)

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FIGURE R

A-2575

ARNOTT FRONT AIR SPRING

FOR 2005-2011 MERCEDES-BENZ ML-CLASS

FOR 2007-2012 MERCEDES-BENZ GL-CLASS

6. PROCEED TO TIGHTEN THE THREE NUTS UNTIL THE CAP IS PRESSED FAR ENOUGH INSIDE OF THE
AIR SPRING TO SECURELY SEAT THE RETAINING CLIP. REMOVE TOOL. (FIGURE S)

FIGURE S

7. AIR STRUT ASSEMBLY COMPLETE.

AIR STRUT INSTALLATION

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

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

2. REMOVE THE WHITE SHIPPING PIN AND INSERT AIR LINE INTO THE NEW AIR LINE FITTING. (FIGURE T)

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FIGURE T