Arnott AS-2778 Air Suspension Strut - Front Left

Arnott AS-2778 Front Left Air Strut

Arnott AS-2778 is a new aftermarket air suspension strut for the front left corner of select Audi A8 Quattro and S8 models with Sport Suspension. It is engineered to restore ride control and air spring performance with a custom-tuned shock absorber and a new Continental ContiTech air bladder.

Key Features

• New Arnott-engineered air suspension strut for the front left position
• Custom-valved hydraulic shock absorber calibrated for the application
• 2-ply Continental ContiTech air spring bladder protected by an aluminum can
• CNC-machined top mount made from aircraft-quality aluminum
• Pre-assembled design for easier installation
• Includes new O-rings, bump stop, heavy-duty crimping rings, air fitting, connector valve, dust boot, and Arnott seals
• Designed and assembled in the USA
• Compatible with vehicles using Sport Suspension PR Codes 2MA and 2MB

Product Details

AS-2778 is built as a direct replacement for the OE front left air strut used on 2004-2010 Audi A8 Quattro models with Sport Suspension and 2007-2010 Audi S8 models. The assembly combines air ride support with a progressive spring rate and gas-charged damping to help maintain consistent ride height and road control. Arnott’s NEW product line focuses on new, application-specific suspension components rather than remanufactured units, and this strut reflects that approach with a fully assembled design and application-matched internal valving. This part cross-references Audi OE numbers 4E0616039AA and 4E0616039AC for the same application.

Common Problems This Part Can Address

• Front suspension sag or uneven ride height
• Air spring leakage from a worn bladder or seals
• Excessive bouncing, harshness, or reduced damping control
• Warning lights related to air suspension performance
• Noise or instability caused by a deteriorated OE strut assembly

Installation Notes

Fits 2004-2010 Audi A8 Quattro, front left, with Sport Suspension PR Codes 2MA and 2MB. Fits 2007-2010 Audi S8, front left. Verify suspension code and position before installation. A detailed installation manual is available, and the pre-assembled design helps reduce setup time compared with rebuilding the original unit.

Quality Assurance

Arnott AS-2778 is a new, USA-assembled air suspension strut built with a ContiTech air bladder, CNC-machined aluminum top mount, new seals, new O-rings, new bump stop, new crimping rings, and a dust boot for added protection.