Frequently Asked Questions

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Ordering & Shipping

No, Arnott no longer sells its products directly to consumers or vehicle owners. Arnott products are widely available through leading warehouse distributors, installers and online resellers who often offer better than retail pricing, local availability, and can handle warranty issues.

Yes, Arnott works with leading distributors, installers and resellers throughout the world. For distributors and customers in the EU region, Middle East and please visit for more information. For resellers outside of North America and regions covered by Arnott’s EU office, Arnott ships most new parts using Fedex and United Parcel Service (UPS). For installers and resellers who need an immediate estimate on pricing and shipping, please contact Arnott Customer Care or use the Contact Form after hours. Be sure to list part number, description, and include your street address, city, and country.

Quoted shipping times are estimates only and are not guaranteed.

*International Shipping charges DO NOT include customs fees, import taxes, brokerage fees, or duties. Please contact your local customs office for more information on these costs.

NOTE: Some products are not available for shipping to locations outside of North America and The European Union.

Arnott Inc. ships from multiple distribution centers but not all parts are available in all warehouses. Ground shipping may take 1-5 business days, depending on what items are ordered and the state in which you live. UPS shipping options do not include Saturday delivery. Please email or call Arnott for Saturday delivery options (if available in your area). Next Day Air will arrive the next business day in the United States, 3-Day delivery will arrive in 3 business days. (Monday-Friday).

Arnott Industries UPS Shipping Estimate Map

You may return a part as long as it is less than 30 days from the date of purchase or within 90 days for unused and uninstalled products. An original Arnott invoice and a Return Material Authorization (RMA) number are required.

About Arnott Products

Most Arnott parts have detailed installation manuals which are available for download by visiting These downloadable manuals are available as PDFs in English or can be accessed and translated as a web page using Google Translate. Some parts include Technical Service Bulletins (TSBs) that alert installers of common installation issues they should be aware of. Any product TSBs, along with multi-language instructions for accessing and downloading Arnott’s Manuals, will be included with your product. Arnott also has a growing selection of professionally produced Installation Videos that are linked to their products on

Arnott has made it easy to return your cores (used OE Air Suspension Parts) for the refund of your core deposit (for North American customers). Carefully pack your core in the box that your new Arnott product came in and include a copy of your invoice for your core deposit refund. You should have also received a pre-paid shipping label which you can put on the outside of the box and then return the core to Arnott. It is that simple. If you did not receive a pre-paid shipping label please call 800-251-8993 or email [email protected]. We will promptly email, fax or mail you a label.

Confused by ride control terminology? Arnott has a compendium of ride control and suspension terms. The online dictionary includes almost 100 terms broken down in alphabetical order. The list includes popular terms used in Arnott part descriptions along with other terms from the suspension and air suspension industry. To access the list please click here.

Completely new air struts and remanufactured air struts as well as the coil conversion kits are mostly assembled at Arnott’s Florida facility using high-quality foreign and domestic components. Foreign materials are part of many of the import cores Arnott remanufactures and various components used to assemble Arnott springs, new and remanufactured parts, and conversion kits. Almost all the air springs for the European market are assembled in Europe while the remaining are assembled in the USA. All WABCO and AMK compressors are manufactured in Germany and the finishing touch is being given in the Netherlands or the USA.

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.

On average, an air suspension part should be replaced between 6 to 10 years or between 80,000 to 100,000 miles. Off-road use also influences how often the replacement should be done. Over this time, the rubber sleeves 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.

Arnott Remanufactured OE struts use the vehicle’s internal electronic controls to adjust factory supplied suspension controls such as auto-leveling and/or auto damping (where available). Arnott designed new struts use custom-valved shocks that don’t require or use the factory air suspension controls.

While many of Arnott’s compressors come from the Original Equipment Supplier they often are not exactly the same as the original compressor. Some Arnott compressors feature improvements to the original design such as different wiring harnesses, brackets and filters. Others may require the re-use of stock mounting hardware or wiring. In some cases the compressor is different because the OE compressor changed supplier. Arnott tests every compressor and includes all of the necessary mounting hardware, accessories and installation instructions and backs its compressors with a Limited 2-Year Warranty in the EU.


If you like the load-leveling capabilities, or if you tow with your vehicle and/or vehicles that are converted to natural gas, 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.

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 Florida, United States.

The air lines are removed from the used part by pushing in on the fitting and pulling out on the air 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.

No, it is not required. However, height sensor recalibration is considered best practice.

Vehicle Information

The right and left sides of an automobile are determined as if sitting in the car facing forward. Thus, the left side is on the left when sitting in the car facing forward, and the right side is on the right. For most cars in Europe, the driver’s side is on the left, and the passenger sits to the right of the driver. For cars in Great Britain, Ireland, Cyprus and some other former British colonies — where they drive on the left side of the road — the passenger sits on the left side, and the driver (along with all the driving controls) is on the right.

In many cases, a malfunction light on the dashboard indicates a problem. A complain may also be that the car is not leveled or is no longer leveling to driving height. Leaks are often the cause of a malfunctioning compressor. They can be found with a soap and water solution. Fixing these will prevent new compressor malfunctions down the line.

The vehicle should be labeled as such on the rear or side doors.

GM vehicles have a sticker called the Service Parts Identification Label located in the glove compartment (for trucks & SUVs) that includes information such as the vehicle’s VIN, Wheel Base, Model designation and a list of the vehicle’s 3 digit/character RPOs or Regular Production Options which are the options that car comes with. The code Z55 is the RPO code which indicates the option of Autoride electronic suspension.

AIRMATIC® is a Mercedes trademark for air suspension. ABC stands for Active Body Control which is hydraulic suspension instead of air suspension. ABC was a rare option. You can tell which suspension you have by opening the hood of the 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. Mercedes-Benz AIRMATIC If your car is equipped with ABC, you will have small black electrical plugs leading into the top of both shocks. Mercedes-Benz AIRMATIC

ADS stands for Active Dampening System. Although ADS can be optional, in Europe, most of the vehicles that have this option come with ADS. You can easily check to see if your vehicle is equipped with ADS by examining the AIRMATIC control buttons located on the dash panel below the Air Conditioning controls. Please see pictures below.

Mercedes-Benz ADS

4MATIC® is a Mercedes registered trademark for all-wheel drive. Usually, if the vehicle features 4MATIC®, there will be an emblem on the right side of the trunk. See illustration below.

For most Arnott products we recommend you to replace them in pairs since the old ones usually have experienced the same wear and tear but it is not necessary. An exception is the E-Class W211 rear air springs, which must be replaced in pairs due to an improvement in design, whereby Arnott’s rear air springs eliminate the OE air reservoir thus saving the installer hours of time.

Originally these Land Rovers came with a Hitachi compressor. However, a couple of years ago Land Rover made the switch to AMK compressors for these models. Due to this switch, the car require a software update to make the air suspension system function well. Since Arnott delivers OES compressors, our P-2645 is also an AMK compressor. Therefore, if you still have the original Hitachi underneath your car, the car will require a software update just like if you’d purchase them directly from Land Rover.