The Audi A6 Avant (C9) 3.0 TFSI V6, producing 367 horsepower, represents a sophisticated blend of performance, efficiency, and practicality within the executive station wagon segment. Introduced in March 2025, this variant sits at the upper echelon of the C9 A6 Avant lineup, offering a compelling alternative to traditional sedan offerings. It leverages a mild hybrid powertrain and Audi’s renowned quattro all-wheel-drive system, packaged within the versatile Avant (estate) body style. This model is primarily targeted towards buyers seeking a premium, technologically advanced vehicle capable of both spirited driving and comfortable long-distance travel.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Avant (C9) |
| Type (Engine) | 3.0 TFSI V6 (367 Hp) Mild Hybrid plus quattro ultra S tronic |
| Start of production | March, 2025 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption at Low speed (WLTP) | 9.5 l/100 km (24.8 US mpg, 29.7 UK mpg, 10.5 km/l) |
| Fuel consumption at Medium speed (WLTP) | 6.6 l/100 km (35.6 US mpg, 42.8 UK mpg, 15.2 km/l) |
| Fuel consumption at high speed (WLTP) | 6.1 l/100 km (38.6 US mpg, 46.3 UK mpg, 16.4 km/l) |
| Fuel consumption at very high speed (WLTP) | 7.1 l/100 km (33.1 US mpg, 39.8 UK mpg, 14.1 km/l) |
| Combined fuel consumption (WLTP) | 6.9-7.8 l/100 km (34.1 – 30.2 US mpg, 40.9 – 36.2 UK mpg, 14.5 – 12.8 km/l) |
| CO2 emissions (WLTP) | 156-178 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.7 sec |
| Acceleration 0 – 62 mph | 4.7 sec |
| Acceleration 0 – 60 mph | 4.5 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 6e |
| Weight-to-power ratio | 5.4 kg/Hp, 183.5 Hp/tonne |
| Weight-to-torque ratio | 3.6 kg/Nm, 275 Nm/tonne |
| Gross battery capacity | 1.7 kWh |
| Battery voltage | 48 V |
| Battery technology | Lithium iron phosphate (LiFePO4) |
| Battery location | Under the trunk |
| Recuperation output | 25 kW |
| Electric motor power | 24 Hp |
| Electric motor Torque | 230 Nm (169.64 lb.-ft.) |
| Electric motor location | Middle, Longitudinal |
| Power | 367 Hp @ 5500-6300 rpm |
| 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 | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Coolant | 18 l (19.02 US qt | 15.84 UK qt) |
| Kerb Weight | 2000 kg (4409.25 lbs.) |
| Max. weight | 2645 kg (5831.23 lbs.) |
| Max load | 645 kg (1421.98 lbs.) |
| Trunk (boot) space – minimum | 466 l (16.46 cu. ft.) |
| Trunk (boot) space – maximum | 1497 l (52.87 cu. ft.) |
| Fuel tank capacity | 61 l (16.11 US gal | 13.42 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (8%) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load with brakes (12%) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 95 kg (209.44 lbs.) |
| Length | 4999 mm (196.81 in.) |
| Width | 1875 mm (73.82 in.) |
| Width including mirrors | 2099 mm (82.64 in.) |
| Height | 1472 mm (57.95 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) | 0.28 |
| Minimum turning circle (turning diameter) | 12.3 m (40.35 ft.) |
| Approach angle | 14.1° |
| Departure angle | 16.9° |
| Drivetrain Architecture | ICE and electric motor drive front wheels, rear drive via clutch |
| 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 |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 225/55 R18; 245/45 R19; 255/40 R20; 255/35 R21 |
| Wheel rims size | 8J x 18; 8.5J x 19; 8.5J x 20; 8.5J x 21 |
Powertrain & Engine Architecture
At the heart of the A6 Avant (C9) 3.0 TFSI lies the 2.995-liter V6 engine, designated as the 420 engine internally. This engine utilizes a direct injection fuel system and is force-fed by a single turbocharger with an intercooler, enabling it to produce 367 horsepower and 550 Nm (405.66 lb-ft) of torque. The engine’s mild hybrid system incorporates a 48V lithium-ion battery and a belt-driven starter-generator, allowing for features like extended engine-off coasting and smoother start-stop operation. The S tronic 7-speed dual-clutch transmission is standard, providing rapid and efficient gear changes. This transmission is known for its responsiveness and contributes to the vehicle’s overall performance.
Driving Characteristics
The 3.0 TFSI V6 with the S tronic transmission delivers a refined and potent driving experience. Acceleration from 0 to 60 mph is achieved in approximately 4.5 seconds. The S tronic transmission’s quick shifts and the engine’s broad torque curve provide ample power for overtaking and highway cruising. While not as overtly sporty as some competitors, the A6 Avant offers a balanced ride, with the optional air suspension further enhancing comfort. The quattro all-wheel-drive system provides excellent traction in various weather conditions. Compared to lower-powered A6 Avant variants, this 3.0 TFSI model offers a significantly more engaging and confident driving experience.
Equipment & Trim Levels
The 3.0 TFSI V6 Avant typically comes well-equipped as a higher-end trim. Standard features generally include leather upholstery, a panoramic sunroof, Audi’s virtual cockpit digital instrument cluster, and a premium sound system. Optional extras often include massaging front seats, a head-up display, and advanced driver-assistance systems such as adaptive cruise control and lane-keeping assist. Interior trim options range from brushed aluminum to wood veneers, allowing for a degree of personalization.
Chassis & Braking
The A6 Avant (C9) features a sophisticated chassis design. The front suspension utilizes a multi-link setup with coil springs, while the rear employs a similar multi-link configuration. Optional air suspension is available, providing adjustable ride height and damping. Braking duties are handled by ventilated discs on all four wheels, with larger discs fitted to the front axle. The electronic stability control (ESC) system is integrated with the quattro all-wheel-drive system to optimize handling and stability.
Market Reception & Comparison
The Audi A6 Avant 3.0 TFSI V6 has been generally well-received by automotive critics. It’s praised for its refined powertrain, comfortable ride, and spacious interior. Fuel economy, while respectable for a vehicle of this size and performance, is not its strongest suit. Compared to the 2.0-liter four-cylinder A6 Avant models, the 3.0 TFSI offers a substantial performance upgrade but comes at a higher price point. Against competitors like the BMW 5 Series Touring and Mercedes-Benz E-Class Estate, the A6 Avant 3.0 TFSI holds its own, offering a compelling blend of luxury, performance, and technology.
Legacy
The 3.0 TFSI V6 engine has proven to be a reliable and durable powerplant in other Audi models. While long-term reliability data for the C9 A6 Avant is still emerging, the engine’s robust construction and the use of modern technologies suggest it should provide years of dependable service. The mild hybrid system adds a layer of complexity, but Audi’s experience with hybrid technology should mitigate potential issues. On the used car market, the A6 Avant 3.0 TFSI is expected to hold its value well due to its desirable combination of performance, luxury, and practicality.
