PDF Installation Manual - English
Installation Manual (w/Google Translate)
Technical Service Bulletin (TSB) #1 - English | 中文
What is ADS? How can I tell if my Mercedes is equipped with ADS suspension?
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.
Arnott LLC® offers a Limited Lifetime Warranty for United States and Canada on Arnott branded Air Springs, Air Struts, Compressors, Coil Spring Conversion Kits and Arnott branded Adjustable Motorcycle Suspension Kits. Orders for Arnott branded products outside of the United States and Canada (i.e., the European Union, Mexico, and the rest of the world) come with a Limited Two-Year Warranty. Arnott offers a 30-Day Money Back Guarantee and a 90-Day Return Policy on unused and uninstalled products. Arnott offers a 30-Day Warranty on parts used in commercial vehicles. Improper use or installation is not a manufacturer's defect and is not covered by the warranty. The Arnott Warranty is non-transferable.
For complete Warranty details and limitations, please click here.