Instruction Manual

ManualsBrandsAir Suspension ManualsCarA-2587

A-2587RR REV -

2007-2012 MERCEDES R-CLASS

(W251) w/AIRMATIC FRONT AIR SPRING

A-2587

Congratulations on your selection to purchase an Arnott Air Suspension System. We at Arnott

Air Suspension Systems are proud to offer a high quality product at the industry’s most

competitive pricing. Thank you for your confidence in us and our product.

Proper installation is essential to experience and appreciate the benefits of this system. Please

take a moment to review these installation instructions before you begin to install this system on

your vehicle.

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

Ride 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: 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 ride 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.

Kit contains:

PARTS LIST

P/N QTY DESCRIPTION

A-2587 1 AIR SPRING ASSEMBLY (SINGLE)

14-4933 1 SHOCK CAP

37-4923 1 CAP REMOVAL TOOL

Addition hardware needed that is not included - 8” Tie Wrap

Summary of content (11 pages)

PAGE 1
2007-2012 MERCEDES R-CLASS (W251) w/AIRMATIC FRONT AIR SPRING A-2587 Congratulations on your selection to purchase an Arnott Air Suspension System. We at Arnott Air Suspension Systems are proud to offer a high quality product at the industry’s most competitive pricing. Thank you for your confidence in us and our product. Proper installation is essential to experience and appreciate the benefits of this system.
PAGE 2
007-2012 MERCEDES R-CLASS (W251) w/AIRMATIC FRONT AIR SPRING A-2587 General information: * Shocks not to be stored below 5 0F (-15 0C) and above 122 0F (50 0C). *Avoid damage to air lines and cables. *Removal and installation is only to be performed by full qualified personnel. *Use car manufacturer’s diagnostic software. *CAUTION: Damage to the vehicle and shock assembly can be incurred if work is carried out in a manner other than specified in the instructions or in a different sequence.
PAGE 3
2007-2012 MERCEDES R-CLASS (W251) w/AIRMATIC FRONT AIR SPRING A-2587 6.0 Disconnect the sway bar arm linkage (Figure B). Figure B 7.0 Remove the lower shock mount bolt and nut (Figure C).
PAGE 4
2007-2012 MERCEDES R-CLASS (W251) w/AIRMATIC FRONT AIR SPRING A-2587 8.0 Remove the control arm nut and separate from the upper A arm (Figure D). Figure D 9.0 Remove the wire harness mount from shock (Figure E).
PAGE 5
2007-2012 MERCEDES R-CLASS (W251) w/AIRMATIC FRONT AIR SPRING A-2587 10.0 Disconnect the airline (Figure F). Figure F 11.0 Remove the airline fitting. To do this remove the collet and the remaining fitting will slide off of the air hose (Figure G).
PAGE 6
2007-2012 MERCEDES R-CLASS (W251) w/AIRMATIC FRONT AIR SPRING A-2587 12.0 Remove the three (3) shock top flange nuts (Figure H). Figure H 13.0 Remove shock. 14.0 Removal Complete.
PAGE 7
2007-2012 MERCEDES R-CLASS (W251) w/AIRMATIC FRONT AIR SPRING A-2587 AIR SPRING REMOVAL AND INSTALLATION: 1.0 Obtain front shock assembly. 2.0 Place cap removal tool (37-4923) 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 tool (37-4923) (Figure I). 37-4923 REMOVAL TOOL Figure I 3.
PAGE 8
2007-2012 MERCEDES R-CLASS (W251) w/AIRMATIC FRONT AIR SPRING A-2587 4.0 With the top cap pushed down, use a small flat tip screw driver to remove the retaining ring (Figure K). RETAINING RING RETAINING RING Figure K 5.0 Remove the cap removal tool (37-4923). 6.0 Using a pair of locking pliers remove the top cap (Figure L). 7.0 Remove the nut holding the air sleeve to the shock (Figure M).
PAGE 9
2007-2012 MERCEDES R-CLASS (W251) w/AIRMATIC FRONT AIR SPRING A-2587 8.0 Remove the old air spring and O-rings and discard. Wipe down area where the new air spring will sit. (Figure N). Figure N 9.0 Install shock cap onto shock (cap will snap onto shock) (Figure O).
PAGE 10
2007-2012 MERCEDES R-CLASS (W251) w/AIRMATIC FRONT AIR SPRING A-2587 10.0 Obtain the new air spring, apply a lubricant to the O-rings in the bottom of the air spring and install onto the shock (Figure P). O-RINGS Figure P 11.0 Install locknut onto shaft of shock and tighten to manufactures specifications (Figure Q).
PAGE 11
2007-2012 MERCEDES R-CLASS (W251) w/AIRMATIC FRONT AIR SPRING A-2587 12.0 Apply lubricant to the O-ring and install cap into top mount, tighten snug (Figure R). O-RINGS Figure R 13.0 Air sleeve/shock assembly complete. 14.