The Audi A6 Sedan (4G, C7) 3.0 TFSI V6 quattro S tronic represents a high-performance variant within the fourth generation (C7) of Audi’s flagship executive sedan, produced from 2013 to 2014. Positioned as a premium offering, this model combined a potent supercharged V6 engine with Audi’s renowned quattro all-wheel-drive system and a seven-speed S tronic dual-clutch transmission. It aimed to deliver a blend of exhilarating performance, sophisticated luxury, and advanced technology, competing with vehicles like the BMW 5 Series and Mercedes-Benz E-Class.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Sedan (4G, C7) |
| Type (Engine) | 3.0 TFSI V6 (310 Hp) quattro S tronic |
| Start of production | 2013 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| 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 | 5.5 sec |
| Acceleration 0 – 62 mph | 5.5 sec |
| Acceleration 0 – 60 mph | 5.2 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 5.6 kg/Hp, 178.2 Hp/tonne |
| Weight-to-torque ratio | 4 kg/Nm, 252.9 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) |
| Maximum engine speed | 6500 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 |
| Valvetrain | DOHC |
| 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 | 1740 kg (3836.04 lbs.) |
| Max. weight | 2350 kg (5180.86 lbs.) |
| Max load | 610 kg (1344.82 lbs.) |
| Trunk (boot) space – minimum | 530 l (18.72 cu. ft.) |
| Trunk (boot) space – maximum | 995 l (35.14 cu. ft.) |
| Fuel tank capacity | 75 l (19.81 US gal | 16.5 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (8%) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 85 kg (187.39 lbs.) |
| Length | 4915 mm (193.5 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 | 1627 mm (64.06 in.) |
| Rear (Back) track | 1618 mm (63.7 in.) |
| Front overhang | 912 mm (35.91 in.) |
| Rear overhang | 1091 mm (42.95 in.) |
| Drag coefficient (Cd) | 0.28 |
| 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 |
Powertrain & Engine Architecture
At the heart of the A6 3.0 TFSI quattro S tronic lies the 3.0-liter V6 engine, designated with engine codes like CGWD, CGXB, and CTUA. This engine is characterized by its supercharger and direct fuel injection system. The supercharger, a mechanically driven Roots-type unit, provides instant boost at low engine speeds, eliminating turbo lag and delivering a linear power curve. Direct injection precisely meters fuel into the combustion chambers, enhancing efficiency and reducing emissions. The engine utilizes a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder, optimizing airflow for increased power output. The S tronic seven-speed dual-clutch transmission offers incredibly fast and smooth gear changes, contributing to the car’s responsive driving experience. This transmission allows for both fully automatic operation and manual gear selection via steering wheel-mounted paddles.
Driving Characteristics
The combination of the 310 horsepower engine and the S tronic transmission results in brisk acceleration. The 0-60 mph sprint is achieved in approximately 5.2 seconds, and the car is electronically limited to a top speed of 155 mph. The quattro all-wheel-drive system provides excellent traction in all weather conditions, enhancing stability and control. The S tronic transmission’s quick shifts and the supercharger’s immediate response create a feeling of effortless power delivery. Compared to the base 2.0-liter four-cylinder models, the 3.0 TFSI offers a significantly more refined and powerful driving experience. While not as overtly sporty as the S6 variant, it provides a compelling balance of performance and comfort.
Equipment & Trim Levels
The A6 3.0 TFSI quattro S tronic typically came well-equipped as standard. Features included leather upholstery, tri-zone automatic climate control, a premium sound system, and Audi’s Multi Media Interface (MMI) infotainment system with a central display screen. Optional extras included features like adaptive cruise control, a head-up display, ventilated front seats, and a panoramic sunroof. Trim levels varied slightly by market, but generally, this engine configuration was positioned as a mid-to-high-range offering within the A6 lineup.
Chassis & Braking
The A6 C7 features an independent multi-link suspension at the front and an independent trapezoidal lever suspension at the rear, providing a comfortable yet controlled ride. The quattro all-wheel-drive system distributes power between the front and rear axles as needed, optimizing traction. Braking duties are handled by ventilated discs at the front and solid discs at the rear, coupled with ABS (Anti-lock Braking System) and electronic stability control. The suspension tuning is geared towards providing a balance between comfort and handling, making it suitable for both long-distance cruising and spirited driving.
Market Reception & Comparison
The Audi A6 3.0 TFSI quattro S tronic was generally well-received by automotive critics. It was praised for its powerful engine, smooth transmission, comfortable ride, and luxurious interior. Fuel economy, while not exceptional, was considered reasonable for a vehicle of its performance caliber. Compared to the 2.0-liter models, the 3.0 TFSI offered a substantial performance upgrade, while remaining more affordable and practical than the high-performance S6 variant. Reliability was generally good, although some owners reported minor issues with the supercharger and electronic components.
Legacy
The 3.0 TFSI engine, in various iterations, proved to be a durable and reliable powerplant. The C7 A6, including this variant, has maintained a solid reputation in the used car market. While maintenance costs can be higher than those of simpler engines, the combination of performance, luxury, and technology continues to appeal to buyers seeking a refined and capable executive sedan. The S tronic transmission, while generally reliable, requires regular servicing to ensure optimal performance. Overall, the A6 3.0 TFSI quattro S tronic remains a desirable and well-regarded vehicle, offering a compelling blend of German engineering and driving pleasure.
