Engineered to Ride, Built to last

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Colleen Morris
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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 industries most competitive pricing.

1 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 industries 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 C-2242-F 2 STRUT ASSEMBLY, FRONT C-2242-RR 1 STRUT ASSEMBLY, RIGHT REAR C-2242-LR 1 STRUT ASSEMBLY, LEFT REAR AIRmatic SPOOFER ASSEMBLY 1

General information: * Struts not to be stored below 5 0 F (-15 0 C) and above 122 0 F (50 0 C). *Avoid damage to air lines and cables.

2 General information: * Struts not to be stored below 5 0 F (-15 0 C) and above F (50 0 C). *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 strut assembly can be incurred if work is carried out in a manner other than specified in the instructions or in a different sequence. NOTE: DO NOT REMOVE THE AIR COMPRESSOR OR LEVEL CONTROL VALVE UNIT FROM THE AIRmatic PNEUMATIC/HYDRAULIC SYSTEM; DOING SO WILL CAUSE ERRORS TO THE N51 AIRmatic COMPUTER MODULE. 2

FRONT STRUT REMOVAL: NOTE: FRONT STRUT REMOVAL/INSTALLATION IS FOR BOTH THE FRONT RIGHT AND LEFT STRUT ASSEMBLIES. The ignition must remain switched off during the strut removal and replacement. 1.

3 FRONT STRUT REMOVAL: NOTE: FRONT STRUT REMOVAL/INSTALLATION IS FOR BOTH THE FRONT RIGHT AND LEFT STRUT ASSEMBLIES. The ignition must remain switched off during the strut removal and replacement. 1.0 Set steering to straight ahead. 2.0 Remove the air compressor fuse (located on the passenger s side fuse box (f32 in K40/7 fuse and relay module) in engine compartment) (Figure A). Figure A Use lifting platform (hoist) that is capable of raising the body separately from the wheels, lift body at the lifting points prescribed by the vehicle manufacturer. Vehicle slippage can cause danger to life and limb. 3.0 Raise vehicle. NOTE: 3 FRONT COIL STRUT ASSEMBLIES ARE NOT SIDE SPECIFIC.

assembly (Figure C). 7.0 Raise the hood.

4 4.0 Remove front tire(s). 5.0 Disconnect the strut control cable connector located in the fender well (Figure B). Figure B 6.0 Loosen the two (2) set screws (180 0 apart) located on the bottom of the strut assembly (Figure C). 7.0 Raise the hood. 8.0 Disconnect the air supply line to the strut assembly (figure D). Figure C Figure D 4

5 9.0 Remove the ball joint at the upper control arm; remove strut assembly (Figure E). Figure E 10.0 Remove the three (3) nuts holding the top mount of the strut (figure F). 5

6 FRONT STRUT INSTALLATION: Figure F Torque nuts and bolts to the manufactures specification. 1.0 Install the new C-2242-F strut assembly into the upper and lower strut mounts. 2.0 Tighten the top 3 nuts to the manufacturers specification. 3.0 Tighten the 2 (two) set screws equally on the bottom of the strut assembly. 4.0 Re-install the upper ball joint at the upper control arm. 5.0 Connect strut control cable connector. 6.0 Install tire, tighten lug nuts to manufacturers specification. 7.0 Cover the open end of the air supply line and secure. 8.0 Lower vehicle to standard vehicle height from the lifting platform. 6

REAR STRUT REMOVAL: NOTE: REAR STRUT REMOVAL/INSTALLATION IS FOR BOTH THE REAR RIGHT AND LEFT STRUT. The ignition must remain switched off during the strut removal and replacement.

7 REAR STRUT REMOVAL: NOTE: REAR STRUT REMOVAL/INSTALLATION IS FOR BOTH THE REAR RIGHT AND LEFT STRUT. The ignition must remain switched off during the strut removal and replacement. Use lifting platform (hoist) that is capable of raising the body separately from the wheels, lift body at the lifting points prescribed by the vehicle manufacturer. Vehicle slippage can cause danger to life and limb. 1.0 Raise vehicle. CAUTION: THERE IS A LEFT AND RIGHT COIL STRUT ASSEMBLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE TO COIL STRUT ASSEMBLY. 2.0 Remove rear tire. 3.0 Remove the side cover of the hat rack to expose the top of the air strut (located in the rear window area) (Figure G). Figure G 7

4.0 Disconnect the airline and the 3 mounting

8 4.0 Disconnect the airline and the 3 mounting nuts from the top of the air strut (Figure H). Air pressure! Release slowly and allow pressure to escape. Figure H 5.0 Remove rubber boot and disconnect electrical connector leading to the strut damper solenoid. (Figure I) Figure I 8

3 Disconnect the sensor connector and remove the

9 6.0 Remove rear brake caliper: 6.1 Loosen the two (2) bolts on the backside of the caliper (Figure J-1) 6.2 Remove the retaining clip (Figure J-2). 6.3 Disconnect the sensor connector and remove the sensor bracket (Figure J-3). 6.4 Secure the caliper (Figure J-4). 7.0 Disassemble the outer suspension arm (Figure K). Figure K 9

10 8.0 Disassembly the stabilizer bar link (Figure L). Figure L 9.0 Remove the bolt and nut connecting the strut assembly to the suspension arm (Figure M). Figure M 10

11 10.0Loosen the lower control bolt slightly (this will allow the lower control arm to swing down) (Figure N) Remove strut assembly from car. Figure N 11

0 Install the new coil conversion strut assembly into the top mounting

12 REAR STRUT INSTALLATION: Torque nuts and bolts to the manufactures specification. 1.0 Install the new coil conversion strut assembly into the top mounting holes, screw on the three (3) nuts (Figure O). Figure O 2.0 Assemble the coil conversion strut to the suspension arm (Figure P). Figure P 12

bolt and nut (Figure R). Figure Q Figure R 4.

13 3.0 Assemble the suspension arm on the outside (Figure Q). It may be necessary to use a jack on the suspension arm to install the bolt and nut (Figure R). Figure Q Figure R 4.0 Assemble the stabilizer bar link (Figure S). 5.0 Tighten the lower control bolt (Figure T). Figure S Figure T 13

6.0 Connect the electrical connector and re-install rubber boot (Figure U). Figure U 7.0 Re-install the rear brake caliper. 7.1 Install caliper, tighten the two (2) bolts on the backside of the caliper (Figure V-1).

14 6.0 Connect the electrical connector and re-install rubber boot (Figure U). Figure U 7.0 Re-install the rear brake caliper. 7.1 Install caliper, tighten the two (2) bolts on the backside of the caliper (Figure V-1). 7.2 Re-connect the sensor connector and re-install the sensor bracket bolt (Figure V-2). 7.3 Re-install retaining clip (Figure V-3). 14

15 8.0 Install rear tire(s). 9.0 Lower vehicle to standard vehicle height from the lifting platform Re-install hat rack side cover (cover end of airline and lay under cover). 15

(Figure X). Figure W Figure X CAUTION: BEFORE CUTTING WIRES MAKE SURE YOU HAVE PROPERLY IDENTIFIED THE CORRECT WIRES.

16 AIRmatic SPOOFER INSTALLATION: 1.0 Locate the N51 control module (located in the driver side fuse box) (Figure W), verify that it has one of the two part numbers on it (Figure X). Figure W Figure X CAUTION: BEFORE CUTTING WIRES MAKE SURE YOU HAVE PROPERLY IDENTIFIED THE CORRECT WIRES. FAILURE TO DO SO WILL CAUSE FAULTS CODES WHEN RE-PROGRAMMING THE N51 CONTROL MODULE. 2.0 Connect the AIRmatic spoofer assembly into the connectors of the N51 computer module to the as shown in Figure Y, crimp a crimp cap (not supplied) on the free end of the cut wires. 16

17 N51 COMPUTER MODULE GRAY/RED DO NUT CUT THE GRAY/RED WIRE (PIN 44 OF CONNECTOR #1), USE THE INSTA-TAP CONNECTORE TO SPLICE INTO THE WIRE. FAILURE TO DO SO WILL CAUSE AN ERROR CODE. CONNECTOR PIN NUMBERS FOR THE N51 CONTROL (ABC) CONTROL MODULE ARE IDENTIFIED ON THE BACKSIDE OF THE CONNECTIORS BROWN/GRAY YELLOW/BLACK GRAY GREEN AIRmatic spoofer Compressor vent BLUE YELLOW ORANGE GRAY/RED +12V PURPLE BLACK/YELLOW GREEN/RED BROWN/RED BLACK/BLUE BLUE /GREEN BROWN WHITE Figure Y WIRING DIAGRAM 17

3.0 Run the ground wire from the fuse box

18 3.0 Run the ground wire from the fuse box and connect to the vehicle ground terminal (Figure Z). Figure Z 4.0 Locate an open power terminal in the fuse panel, install the fuse holder (12+ V) (Figure AA). 5.0 Re-install fuse box cover (Figure AB). Figure AA Figure AB 18

0 Connect the computer to your vehicle (Figure AC). Figure AC 2.0 Turn ignition to the on position. 3.

19 RE-PROGRAMING THE COMPUTER MODULE: NOTE: IF YOU DO NOT HAVE THE COMPUTER SOFTWARE TO REPROGRAM YOUR N51 COMPUTER MODULE YOU CAN SEND IT TO US WITH YOUR CORE RETURN AND WE WILL RE-PROGAM IT FOR YOU. 1.0 Connect the computer to your vehicle (Figure AC). Figure AC 2.0 Turn ignition to the on position. 3.0 Start the re-programming as follows: 3.1 Select Cars (Figure AD). 3.2 Select Model S-Class/CL/Maybach (Figure AE). Figure AD Figure AE 19

20 3.3 Select 220 (figure AF). 3.4 Select Control units (Figure AG). Figure AF Figure AG 3.5 Select Chassis (Figure AH). 3.6 Select Suspension (Figure AI). Figure AH Figure AI 20

21 3.7 Select AIRmatic (Figure AJ). 3.8 Select Control units Adaptation (Figure AK). Figure AJ Figure AK 3.9 Select Level calibration (Figure AL): Level calibration necessary screen will show up. F2 to next screen (Figure AM). Figure AL Figure AM 21

11 F2 to get to the Entry of values stored in the inclination measuring instrument (Figure AO).

22 3.10 Actuation of level valves screen will show up (signal values should read between 2.53V and 2.57V, if not wiring is incorrect) (Figure AN) F2 to get to the Entry of values stored in the inclination measuring instrument (Figure AO). Figure AN Figure AO 3.12 Enter 5.1 on lines 1and 2, enter -1.7 on lines 3 and 4 (Figure AP) F2 to get to screen asking to perform level calibration with values entered (Figure AQ). Figure AP Figure AQ 22

15 Go back to AIRmatic screen, select fault codes (Figure AS). Figure AR Figure AS 3.

23 3.14 F3 to run calibration. When calibration is successful an OK will be displayed on screen (Figure AR) Go back to AIRmatic screen, select fault codes (Figure AS). Figure AR Figure AS 3.16 Enter OK (Figure AT) Fault codes screen appears, no fault codes, installation has been successful and calibration is complete (Figure AU). Figure AT Figure AU 4.0 Installation complete. 23

"Engineered to Ride, Built to Last "

Engineered to Ride, Built to Last 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