Air Suspension category referenceSpecial order · Estimated lead time: typically 2-4 weeks
09-16 Audi S4 - Airtech Air Suspension
Choose year, make and model to confirm this application-specific product fits — you can add it to your cart either way.
Verify fitment- Two front air strut assemblies and two rear air strut assemblies
- Tool kit: spanner wrenches, damping adjustment knobs and application-specific brake line brackets
- Owner's manual
One approved application: 2009–2016 Audi S4 · B8 · AWD
Choose an available option for each required item to enable Add to cart: Electronic Damping Option. Options marked “Contact for quote” require a KSport quote and cannot be added directly.
- Ships from Mesa, AZ
- 12-month limited warranty
- Special order: typically 2-4 weeks
Specifications — CAU261-ASO
Product details
The Airtech Air Suspension kit for the 2009-2016 Audi S4 AWD is a set of front and rear air struts, two of each, built to bolt into the car without much fuss. Air management is not included. These struts work with most air systems, so this option suits a builder who already has a compressor and control setup in mind.
Each strut has 36-way damping and an adjustable lower mount, which lets you fine-tune ride height at any pressure. Height range is listed at 0-120/200 mm depending on the vehicle. The air bags are built from high-quality metal and rubber compounds that handle daily driving and occasional track use.
The box holds spanner wrenches, damping knobs, brake line brackets and an owner's manual. Professional installation is a good idea, and the OEM top mounts can need modification on some applications. Recheck every air-line connection after the first 500 miles or one month. A complete KSport system is listed separately for this vehicle.
Supported features
Designed for easy bolt-on installation and compatible with most air management systems on the market.
Near-infinite ride height adjustability from the air spring plus 36 levels of damping adjustment on each strut.
Crafted from high-quality metals and rubber compounds, proven to handle daily driving and track use, with superior resistance to road contaminants.
Fine-tune ride height at any pressure through the adjustable lower mount.
Compatible applications (2)
Choices for this system
Not included. These struts work with most air management systems; a complete KSport system is listed separately for this vehicle.
Installation
Professional installation is recommended. Modification to the OEM top mounts may be required on some applications. Recheck all air-line connections after the first 500 miles or one month, whichever comes first.
Air suspension setup and careWarranty & service
12-month limited warranty to the original purchaser against defects in materials and workmanship. Racing use, exterior finish and improperly installed or modified parts are not covered; keep your original invoice for any claim.
Warranty terms and service requestsOther published pages for MPN CAU261-ASO
These page names share this MPN; they do not confirm fitment. Verify your vehicle before ordering.