Arnott Air Suspension - Frequently Asked Questions (FAQ)
• Why can't I purchase from your site?
• What is the Arnott Warranty on Air Suspension parts?
• Will Arnott air suspension parts ride differently from the originals?
• How long do air suspension parts last?
• Why do some of your compressors look different from the original factory part?
• Do Arnott products include instructions?
• Do I have to weld or modify my car to make your coil spring conversion kits fit?
• Should I replace the air suspension parts or just convert my car to coil
• Should I replace the air dryer along with my leaky air springs?
• How do I remove the air lines from my compressor dryer or solenoid?
• What is the difference between your new air shock (AS-2127) and your rebuilt air shock (AS-2411)?
• I installed your shocks (AS-2700, SK-2649, or SK-2671). However, now my ABS and Stability Traction control light is on. What do I do?
• How can I tell if my Mercedes S-Class is equipped with AIRMATIC® or ABC?
• What is ADS? How can I tell if my Mercedes is equipped with ADS suspension?
• How can I tell if my Cadillac is a Concours or an ETC model?
Why can't I purchase from your site?
July 1st: Arnott Europe has made the transition to a dedicated focus on our Authorized Dealers.
As such, Arnott Europe suspends sales to consumers and workshops. Arnott’s authorized distributors provide workshops and their customers with a variety of benefits including good pricing, multiple payment options, faster shipping and easier returns for cores and warranty items.
Arnott’s website continues to offer product information but no longer offers its products for sale. Visitors find a searchable database with listings of Arnott Air Suspension Distributors located throughout the EU Zone. The listings provide the ability to zoom into the distributor’s location on a map as well as click links to the distributor’s website, phone number and email address.
By selling only through qualified distributors Arnott Europe is better able to focus on providing superior customer and technical support while also being able to service our distributors better.
If you cannot find a local distributor in your area, please feel free to contact us so that we can help you find one.
What is the Arnott Warranty on Air Suspension parts?
Arnott Europe offers a Limited Lifetime Warranty for European Union customers on Arnott Air Springs, Air Struts, Shocks, Compressors and Conversion Kits. Orders for Arnott products outside of the European Union come with a Limited Two-Year Warranty. Arnott offers a 90-Day Warranty on parts used in commercial vehicles. Improper use or installation is not a manufacturer's defect. Arnott’s Warranty is non-transferable.
For complete Warranty details and limitations, please click here.
Will Arnott air suspension parts ride differently from the originals?
No. Arnott air springs are just like the originals. You will not notice any difference in ride quality. Arnott
designs its air springs with the same spring rate and load capabilities set by the original manufacturer.
How long do air suspension parts last?
Air springs normally last 90,000 to 160,000 kilometers. Over this time, the rubber bladder dries out, and
cracks appear around the bottom piston. Compressors usually wear out because of leaky air springs. However,
the computer and height sensors generally last the life of the vehicle.
Why do some of your compressors look different from the
original factory part?
Some Arnott compressors feature improvements to the original design. For example, the aftermarket compressor
for the Lincoln Continental Mark VIII has an internal filter rather than an external filter. Also, sometimes
customers confuse the air suspension compressor with the ABS (brakes) compressor. The ABS compressor will have
metal lines, rather than plastic.
Do Arnott products include instructions?
Most Arnott parts include manuals, however some do not. If available, instructions will be shipped along with
your part. In addition, installation manuals can be downloaded from the Arnott Main Website - Manuals and should come with your part.
Arnott also has a wide selection of Installation Videos that are linked from the available product pages or
from the Arnott Main Website - Videos page.
Do I have to weld or modify my car to make your coil spring
Absolutely not! Arnott conversion kits are designed to bolt directly to your vehicle's suspension. No special
tools are necessary to install Arnott conversion kits. Arnott kits come preassembled and ready to bolt in. All
Arnott suspension brackets are specifically engineered for your vehicle, and CNC-machined at the Arnott
factory in Merritt Island, FL.
Should I replace the air suspension parts or just convert
my car to coil
If you like the load-leveling capabilities, or if you tow with your vehicle, then you should repair the air
suspension system. If you are tired of replacing the many components of which your air suspension consists,
then the coil spring conversion kit should be perfect for you.
Should I replace the air dryer along with my leaky air springs?
Yes. Arnott highly recommends changing the air suspension dryer when you have had a leak in the system. The
air dryer becomes saturated with moisture when the compressor is overworked because of a leak in the system.
Replacing the air dryer will prolong the life of your air compressor and air spring solenoids.
How do I remove the air lines from my compressor dryer or
The air lines are removed by pushing in on the fitting and pulling out on the line at the same time. The
fitting usually has an orange plastic ring around it. If it does not, that is okay ... simply push in on the
brass fitting instead.
What is the difference between your new air shock (AS-2127) and
air shock (AS-2411)?
• PASSIVE (DAMPENING IS NOT ELECTRONIC) BYPASS SENSOR INCLUDED
• AIR LEVELING IS THE SAME AS THE ORIGINAL
• ELECTRONIC DAMPENING JUST LIKE THE ORIGINAL
• AIR LEVELING IS THE SAME AS THE ORIGINAL
I installed your shocks (AS-2700, SK-2649, or SK-2671).
However, now my ABS and
Stability Traction control light is on. What do I do?
There’s an ABS sensor along the frame rail near the top mount on the shock. It is possible that this may
be disconnected. If it is, plug it back in and the message should go away.
How can I tell if my Mercedes S-Class is equipped with
AIRMATIC® or ABC?
AIRMATIC® is a Mercedes trademark for air suspension. ABC stands for Active Body Control. ABC was a rare
option on all S-Class models. ABC, however, was standard on all S-600, S-55, S-63, and S-65 models. You can
tell which suspension you have by opening the hood of your car and examining the top of the shock absorber.
If the car is equipped with AIRMATIC, you will have obvious air lines leading from the top of the shocks.
If your car is equipped with ABC, you will have small black electrical plugs leading into the top of both
What is ADS? How can I tell if my Mercedes is equipped with
ADS stands for Active Dampening System. ADS is standard on all GL550 and ML
trucks equipped with AIRMATIC. ADS was optional on all other GL models such as the GL320, GL350, and
GL450. You can easily check to see if your truck is equipped with ADS by examining the AIRMATIC control
buttons located on the dash panel below the Air Conditioning controls. Please see pictures below.
How can I tell if my Cadillac is a Concours or an ETC model?
The vehicle should be labeled as such on the rear or side doors.
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