The Audi A6 Sedan (C9) 3.0 TFSI V6 quattro S tronic represents a significant evolution in Audi’s mid-size luxury sedan offering. Introduced in September 2025, this variant sits at the upper echelon of the C9 A6 lineup, blending potent performance with sophisticated technology. It builds upon the foundation of the C9 platform – a redesign of the A6 – emphasizing a more digital and connected driving experience. This model is primarily targeted towards buyers seeking a balance of luxury, performance, and all-weather capability, particularly in markets where quattro all-wheel drive is highly valued.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Sedan (C9) |
| Type (Engine) | 3.0 TFSI V6 (362 Hp) quattro S tronic |
| Start of production | September, 2025 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban (EPA) | 11.8 l/100 km (19.9 US mpg, 23.9 UK mpg, 8.5 km/l) |
| Fuel consumption (economy) – extra urban (EPA) | 8.1 l/100 km (29 US mpg, 34.9 UK mpg, 12.3 km/l) |
| Fuel consumption (economy) – combined (EPA) | 10.2 l/100 km (23.1 US mpg, 27.7 UK mpg, 9.8 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.8 sec |
| Acceleration 0 – 62 mph | 4.8 sec |
| Acceleration 0 – 60 mph | 4.5 sec |
| Maximum speed | 210 km/h (130.49 mph), Electronically limited |
| Weight-to-power ratio | 5.4 kg/Hp, 185.2 Hp/tonne |
| Weight-to-torque ratio | 3.6 kg/Nm, 281.3 Nm/tonne |
| Power | 362 Hp @ 5500-6300 rpm |
| Power per litre | 120.9 Hp/l |
| Torque | 550 Nm @ 1700-4000 rpm (405.66 lb.-ft. @ 1700-4000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine displacement | 2995 cm3 (182.77 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 84.5 mm (3.33 in.) |
| Piston Stroke | 89 mm (3.5 in.) |
| Compression ratio | 12:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-scroll turbo, Intercooler |
| Valvetrain | DOHC |
| Engine systems | Start & Stop System |
| Kerb Weight | 1955 kg (4310.04 lbs.) |
| Trunk (boot) space – minimum | 382 l (13.49 cu. ft.) |
| Fuel tank capacity | 73 l (19.28 US gal | 16.06 UK gal) |
| Length | 4999 mm (196.81 in.) |
| Width | 1875 mm (73.82 in.) |
| Width including mirrors | 2099 mm (82.64 in.) |
| Height | 1458 mm (57.4 in.) |
| Wheelbase | 2923 mm (115.08 in.) |
| Front track | 1626 mm (64.02 in.) |
| Rear (Back) track | 1610 mm (63.39 in.) |
| Front overhang | 938 mm (36.93 in.) |
| Rear overhang | 1138 mm (44.8 in.) |
| Drag coefficient (Cd) | 0.31 |
| Minimum turning circle (turning diameter) | 11.3 m (37.07 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels permanently, and the rear wheels are driven through an electrically or mechanically operated clutch if necessary. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 7 gears, automatic transmission S tronic |
| Front suspension | Coil spring, Independent multi-link suspension, Transverse stabilizer, Air Suspension – Optional |
| Rear suspension | Independent multi-link spring suspension with stabilizer, Air Suspension – Optional |
| Front brakes | Ventilated discs, 360 mm |
| Rear brakes | Ventilated discs, 350 mm |
| Assisting systems | ABS (Anti-lock braking system), 4-wheel steering (4WS, active rear steering) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 245/45 R19; 255/40 R20; 255/35 R21 |
| Wheel rims size | 8.5J x 19; 8.5J x 20; 8.5J x 21 |
Powertrain & Engine Architecture
At the heart of the A6 3.0 TFSI quattro S tronic lies the 2.995-liter V6 engine, designated as the 420 engine family within Audi’s portfolio. This engine utilizes a direct injection system, delivering fuel directly into the combustion chambers for improved efficiency and power. The engine is turbocharged with a twin-scroll turbocharger, minimizing turbo lag and providing a broad torque curve. An intercooler further enhances performance by cooling the intake air. The engine employs a Dual Overhead Camshaft (DOHC) valvetrain with four valves per cylinder, optimizing airflow for increased power output. The S tronic 7-speed dual-clutch transmission is a key component, offering rapid and seamless gear changes. This transmission allows for both fully automatic operation and manual gear selection via steering wheel-mounted paddles. The quattro all-wheel-drive system distributes power between the front and rear axles as needed, enhancing traction and stability in various driving conditions.
Driving Characteristics
The 362 horsepower and 405.66 lb.-ft. of torque delivered by the 3.0 TFSI engine translate into brisk acceleration. The 0-60 mph sprint is achieved in approximately 4.5 seconds, making it one of the quicker variants in the A6 lineup. The S tronic transmission contributes to this performance with its quick shifts and efficient power delivery. Compared to the base 2.0-liter four-cylinder models, the V6 offers a significantly more responsive and refined driving experience. While not as overtly sporty as the S6 variant, the 3.0 TFSI provides ample power for both highway cruising and spirited driving. The quattro all-wheel-drive system inspires confidence in inclement weather, providing enhanced grip and stability. The gear ratios are tuned for a balance of acceleration and fuel efficiency, with taller gears for relaxed highway cruising.
Equipment & Trim Levels
The A6 3.0 TFSI quattro S tronic typically comes well-equipped as standard. Features include leather upholstery, tri-zone automatic climate control, a premium sound system, and a comprehensive suite of driver-assistance systems such as adaptive cruise control, lane departure warning, and automatic emergency braking. The MMI touch response system, with its dual touchscreen displays, provides intuitive control over vehicle functions and infotainment. Optional extras include a head-up display, massaging front seats, and a panoramic sunroof. The interior design emphasizes a minimalist aesthetic with high-quality materials and meticulous attention to detail. Trim levels often vary by market, but generally, this variant represents a step up from the base A6 models, offering a more luxurious and feature-rich experience.
Chassis & Braking
The C9 A6 utilizes a sophisticated chassis design featuring a multi-link suspension system at both the front and rear. This suspension setup provides a comfortable ride while maintaining precise handling characteristics. Available optional air suspension further enhances ride comfort and allows for adjustable ride height. The braking system consists of ventilated discs on all four wheels, providing ample stopping power. Front brake rotors measure 360mm, while rear rotors are 350mm. Anti-lock braking system (ABS) and electronic stability control (ESC) are standard features, enhancing safety and control. The steering system is an electric power-assisted rack and pinion system, offering precise and responsive steering feel.
Market Reception & Comparison
The Audi A6 3.0 TFSI quattro S tronic has generally received positive reviews from automotive critics. It is praised for its powerful engine, refined driving experience, and luxurious interior. Fuel economy is respectable for a V6-powered sedan, achieving around 23.1 US mpg in combined driving. Compared to the 2.0-liter four-cylinder A6 models, the V6 offers a significant performance upgrade, but at a higher price point. The V6 also provides a smoother and more refined driving experience. Reliability has been generally good, although some owners have reported minor issues with the infotainment system. Compared to rivals such as the BMW 5 Series and Mercedes-Benz E-Class, the A6 3.0 TFSI offers a compelling combination of performance, luxury, and technology.
Legacy
The 3.0 TFSI engine has proven to be a durable and reliable powerplant in various Audi models. The S tronic transmission is also known for its longevity and smooth operation. In the used car market, the A6 3.0 TFSI quattro S tronic holds its value well due to its desirable combination of performance, luxury, and all-wheel-drive capability. Regular maintenance, including oil changes and timely servicing of the transmission, is crucial for ensuring long-term reliability. This variant represents a sweet spot in the A6 lineup, offering a compelling blend of performance and practicality for discerning buyers.
