The Audi A6 Avant (4G, C7) 3.0 TFSI quattro S tronic represents a high-performance variant of the fourth-generation A6 Avant, produced between 2011 and 2014. Positioned as a premium offering within the A6 lineup, this model combined a potent supercharged 3.0-liter V6 engine with Audi’s renowned quattro all-wheel-drive system and a seven-speed S tronic dual-clutch transmission. It catered to buyers seeking a blend of practicality, luxury, and spirited driving dynamics in a stylish station wagon (estate) body style.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Avant (4G, C7) |
| Type (Engine) | 3.0 TFSI (310 Hp) quattro S tronic |
| Start of production | 2011 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban | 10.8 l/100 km (21.8 US mpg, 26.2 UK mpg, 9.3 km/l) |
| Fuel consumption (economy) – extra urban | 6.6 l/100 km (35.6 US mpg, 42.8 UK mpg, 15.2 km/l) |
| Fuel consumption (economy) – combined | 8.2 l/100 km (28.7 US mpg, 34.4 UK mpg, 12.2 km/l) |
| CO2 emissions | 190 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.6 sec |
| Acceleration 0 – 62 mph | 5.6 sec |
| Acceleration 0 – 60 mph | 5.3 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 6 kg/Hp, 166.2 Hp/tonne |
| Weight-to-torque ratio | 4.2 kg/Nm, 235.9 Nm/tonne |
| Power | 310 Hp @ 5500-6500 rpm |
| Power per litre | 103.5 Hp/l |
| Torque | 440 Nm @ 2900-4500 rpm (324.53 lb.-ft. @ 2900-4500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | CGWD, CGXB, CTUA |
| 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 | 10.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Supercharger, Intercooler |
| Engine oil capacity | 6.8 l (7.19 US qt | 5.98 UK qt) |
| Coolant | 12 l (12.68 US qt | 10.56 UK qt) |
| Kerb Weight | 1865 kg (4111.62 lbs.) |
| Max. weight | 2350 kg (5180.86 lbs.) |
| Max load | 485 kg (1069.24 lbs.) |
| Trunk (boot) space – minimum | 565 l (19.95 cu. ft.) |
| Trunk (boot) space – maximum | 1680 l (59.33 cu. ft.) |
| Fuel tank capacity | 65 l (17.17 US gal | 14.3 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 85 kg (187.39 lbs.) |
| Length | 4926 mm (193.94 in.) |
| Width | 1874 mm (73.78 in.) |
| Width including mirrors | 2086 mm (82.13 in.) |
| Height | 1468 mm (57.8 in.) |
| Wheelbase | 2912 mm (114.65 in.) |
| Front track | 1874 mm (73.78 in.) |
| Rear (Back) track | 1618 mm (63.7 in.) |
| Front overhang | 912 mm (35.91 in.) |
| Rear overhang | 1102 mm (43.39 in.) |
| Ride height (ground clearance) | 117 mm (4.61 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 11.9 m (39.04 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 7 gears, automatic transmission S tronic |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent on trapezoidal lever |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 225/55 R17 |
| Wheel rims size | 8J x 17 |
INTRODUCTION
The Audi A6 Avant (4G, C7) 3.0 TFSI quattro S tronic, launched in 2011, was a key component of Audi’s strategy to offer a compelling alternative to traditional luxury sedans. Built on the Volkswagen Group’s MLB platform (specifically the 4G variant), the C7 A6 Avant aimed to deliver the practicality of a station wagon with the refinement and performance expected of the Audi brand. This particular variant, equipped with the 3.0 TFSI engine and S tronic transmission, occupied a sweet spot in the lineup, offering a significant step up in performance from the base 2.0-liter models while remaining more accessible than the range-topping S6.
Powertrain & Engine Architecture
At the heart of the A6 Avant 3.0 TFSI lies the CGWD, CGXB, or CTUA engine code, a 2,995 cc 60-degree V6 engine. This engine utilizes a mechanically driven supercharger in conjunction with direct fuel injection to deliver a broad torque curve and responsive acceleration. The supercharger provides instant boost at lower engine speeds, eliminating turbo lag, while direct injection optimizes combustion efficiency. The engine produces 310 horsepower at 5,500-6,500 rpm and 440 Nm (324.53 lb-ft) of torque between 2,900 and 4,500 rpm. The seven-speed S tronic dual-clutch transmission provides rapid and smooth gear changes, contributing to the car’s overall performance. This transmission features two clutches, allowing for pre-selection of the next gear, resulting in near-instantaneous shifts.
Driving Characteristics
The 3.0 TFSI engine, paired with the S tronic transmission and quattro all-wheel drive, delivers a noticeably more engaging driving experience compared to lower-powered A6 Avant models. Acceleration from 0 to 60 mph takes approximately 5.3 seconds, and the car feels confident and stable at highway speeds. The S tronic transmission’s quick shifts and the quattro system’s traction provide excellent control in various driving conditions. While not as overtly sporty as the S6, the 3.0 TFSI offers a well-balanced blend of performance and comfort. The gear ratios are tuned for both acceleration and fuel efficiency, providing a usable powerband across a wide range of speeds. Compared to the manual transmission options, the S tronic offers convenience and quicker acceleration, though some enthusiasts may prefer the greater driver involvement of a manual gearbox.
Equipment & Trim Levels
The A6 Avant 3.0 TFSI quattro S tronic typically came well-equipped as standard. Features included leather upholstery, tri-zone automatic climate control, a multi-function steering wheel, and Audi’s MMI infotainment system with a central display screen. Optional extras included features like a premium sound system (Bang & Olufsen), adaptive cruise control, a panoramic sunroof, and various driver assistance systems. Interior trim levels varied, with options for wood or aluminum inlays. The standard seats provided good support and comfort, and optional sport seats were available for a more aggressive feel.
Chassis & Braking
The A6 Avant’s chassis features an independent multi-link suspension at the front and an independent trapezoidal link suspension at the rear. This setup provides a comfortable ride while maintaining good handling characteristics. The quattro all-wheel-drive system distributes power between the front and rear axles as needed, enhancing traction and stability. Braking duties are handled by ventilated discs at the front and solid discs at the rear, providing ample stopping power. Anti-lock braking system (ABS) and electronic stability control (ESC) are standard features, further enhancing safety.
Market Reception & Comparison
The Audi A6 Avant 3.0 TFSI quattro S tronic was generally well-received by automotive critics. It was praised for its powerful engine, refined interior, and comfortable ride. Compared to the 2.0-liter TFSI models, the 3.0 TFSI offered a significant performance upgrade, making it a more appealing option for drivers who prioritized driving enjoyment. Fuel economy, while not exceptional, was reasonable for a vehicle of this size and performance. Reliability was generally good, although some owners reported minor issues with the infotainment system. Compared to rivals like the BMW 5 Series Touring and Mercedes-Benz E-Class Estate, the A6 Avant was often seen as offering a more modern and technologically advanced package.
Legacy
The Audi A6 Avant (4G, C7) 3.0 TFSI quattro S tronic remains a desirable used car today. The 3.0 TFSI engine is known for its durability and relatively straightforward maintenance. The S tronic transmission, while requiring regular servicing (fluid changes are crucial), is generally reliable. These vehicles offer a compelling combination of performance, practicality, and luxury at a more affordable price point than newer models. However, potential buyers should be aware of the importance of maintaining the timing chain and ensuring the transmission fluid has been changed according to Audi’s recommended schedule. Overall, the A6 Avant 3.0 TFSI quattro S tronic represents a well-engineered and enjoyable vehicle that continues to hold its own in the used car market.
