The Audi A6 Avant (4G, C7 facelift) 3.0 TDI V6 clean diesel with the S tronic transmission represents a refined and technologically advanced iteration of Audi’s popular executive wagon. Produced from 2014 to 2016, this variant occupied a strong mid-to-upper position within the C7 A6 Avant lineup, offering a compelling blend of performance, efficiency, and practicality. It was primarily marketed in Europe and other regions where wagons maintain significant popularity, serving as a premium alternative to traditional sedans and SUVs.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Avant (4G, C7 facelift 2014) |
| Type (Engine) | 3.0 TDI V6 clean diesel (218 Hp) S tronic |
| Start of production | 2014 |
| End of production | 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 5.5 l/100 km (42.8 US mpg, 51.4 UK mpg, 18.2 km/l) |
| Fuel consumption (extra urban) | 4.4 l/100 km (53.5 US mpg, 64.2 UK mpg, 22.7 km/l) |
| Fuel consumption (combined) | 4.8 l/100 km (49 US mpg, 58.9 UK mpg, 20.8 km/l) |
| CO2 emissions | 125 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.3 sec |
| Acceleration 0 – 62 mph | 7.3 sec |
| Acceleration 0 – 60 mph | 6.9 sec |
| Maximum speed | 234 km/h (145.4 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.1 kg/Hp, 123.9 Hp/tonne |
| Weight-to-torque ratio | 4.4 kg/Nm, 227.3 Nm/tonne |
| Power | 218 Hp @ 4000-4750 rpm |
| Power per litre | 73.5 Hp/l |
| Torque | 400 Nm @ 1250-3750 rpm (295.02 lb.-ft. @ 1250-3750 rpm) |
| Maximum engine speed | 5000 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | CRTE, CTCC |
| Engine displacement | 2967 cm3 (181.06 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 91.4 mm (3.6 in.) |
| Compression ratio | 16:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 6.1 l (6.45 US qt | 5.37 UK qt) |
| Coolant | 11.5 l (12.15 US qt | 10.12 UK qt) |
| Kerb Weight | 1760 kg (3880.14 lbs.) |
| Max. weight | 2390 kg (5269.05 lbs.) |
| Max load | 630 kg (1388.91 lbs.) |
| Trunk (boot) space – minimum | 565 l (19.95 cu. ft.) |
| Trunk (boot) space – maximum | 1680 l (59.33 cu. ft.) |
| Fuel tank capacity | 73 l (19.28 US gal | 16.06 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%) | 2000 kg (4409.25 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 85 kg (187.39 lbs.) |
| Length | 4943 mm (194.61 in.) |
| Width | 1874 mm (73.78 in.) |
| Width including mirrors | 2086 mm (82.13 in.) |
| Height | 1461-1482 mm (57.52 – 58.35 in.) |
| Wheelbase | 2912 mm (114.65 in.) |
| Front track | 1627 mm (64.06 in.) |
| Rear (Back) track | 1618 mm (63.7 in.) |
| Front overhang | 930 mm (36.61 in.) |
| Rear overhang | 1101 mm (43.35 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle (turning diameter) | 11.9 m (39.04 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| 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 | Ventilated discs |
| 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 | 8.0J x 17 |
INTRODUCTION
The Audi A6 Avant (4G, C7 facelift) 3.0 TDI V6 clean diesel with S tronic transmission, produced between 2014 and 2016, represents a sophisticated blend of performance, efficiency, and practicality within Audi’s A6 range. This variant builds upon the already successful C7 generation A6, benefitting from the mid-cycle facelift that brought revised styling, updated technology, and improved engine efficiency. Positioned as a premium wagon, it catered to buyers seeking a more versatile alternative to the A6 sedan, offering ample cargo space without sacrificing the luxury and driving dynamics associated with the Audi brand. The “clean diesel” designation indicated compliance with stringent European emission standards at the time.
Powertrain & Engine Architecture
At the heart of this A6 Avant lies the 3.0-liter TDI V6 diesel engine, specifically utilizing the CRTE or CTCC engine codes depending on minor regional variations. This engine is a longitudinally mounted, turbocharged common-rail diesel, renowned for its smooth power delivery and impressive torque output. The engine features a cast iron block, aluminum cylinder heads, and a 24-valve DOHC valvetrain. The common-rail direct injection system, operating at extremely high pressures, ensures precise fuel delivery and optimized combustion. The turbocharger, often paired with an intercooler, boosts power and efficiency. The S tronic transmission is a 7-speed dual-clutch transmission (DCT) known for its rapid and seamless gear changes. Unlike a traditional automatic, the S tronic utilizes two separate clutches, allowing for pre-selection of the next gear, resulting in quicker acceleration and improved fuel economy.
Driving Characteristics
The 218 horsepower and 400 Nm (295 lb-ft) of torque produced by the 3.0 TDI engine, coupled with the S tronic transmission, deliver a refined and capable driving experience. Acceleration from 0 to 100 km/h (0-62 mph) takes approximately 7.3 seconds. While not overtly sporty, the engine provides ample power for effortless highway cruising and confident overtaking. The S tronic transmission contributes to a responsive feel, with quick shifts and minimal torque interruption. Compared to the lower-powered 1.8 TFSI or 2.0 TDI variants, the 3.0 TDI offers significantly more performance, particularly in the mid-range. However, it doesn’t quite match the outright acceleration of the higher-performance S6 models. The gear ratios in the S tronic are tuned for a balance between performance and fuel efficiency, with taller gears for relaxed cruising and shorter gears for quicker acceleration.
Equipment & Trim Levels
The 3.0 TDI V6 S tronic A6 Avant typically came well-equipped, reflecting its position in the mid-to-upper range of the A6 lineup. Standard features often included leather upholstery, tri-zone automatic climate control, a multi-function steering wheel, Audi’s MMI infotainment system with a central display screen, and a premium sound system. Optional extras were plentiful, including features like adaptive cruise control, a head-up display, a panoramic sunroof, and advanced driver assistance systems such as lane keep assist and blind spot monitoring. Interior trim options varied, with choices in wood, aluminum, or carbon fiber accents. Exterior styling cues included distinctive alloy wheel designs and chrome accents.
Chassis & Braking
The A6 Avant features a sophisticated chassis design, incorporating independent suspension all around. The front suspension utilizes a multi-link setup, while the rear employs a trapezoidal link configuration. This arrangement provides a comfortable ride quality while maintaining good handling characteristics. The steering is a rack-and-pinion system with electric power assistance. Braking duties are handled by ventilated discs on all four wheels, providing ample stopping power. ABS (Anti-lock Braking System) is standard, enhancing safety and stability. Stabilizer bars are fitted front and rear to reduce body roll during cornering.
Market Reception & Comparison
The Audi A6 Avant 3.0 TDI V6 S tronic was generally well-received by automotive critics. It was praised for its refined engine, smooth transmission, comfortable ride, and spacious interior. Fuel economy was also a strong point, with combined figures around 4.8 l/100 km (49 US mpg). Compared to the 2.0 TDI variants, the 3.0 TDI offered a noticeable performance upgrade, albeit at a higher price point. The 3.0 TDI also provided a more refined driving experience than some of its competitors, such as the BMW 5 Series Touring and Mercedes-Benz E-Class Estate. Reliability was generally good, although, like all modern diesel engines, it was susceptible to issues with the diesel particulate filter (DPF) if not driven on longer journeys regularly.
Legacy
The 3.0 TDI V6 engine, in various iterations, proved to be a durable and reliable powerplant. However, the C7 A6 Avant, like other diesel vehicles of the era, has faced increased scrutiny regarding emissions regulations in recent years. On the used car market, these models remain desirable, particularly those with a well-maintained service history. The S tronic transmission, while generally reliable, requires regular servicing to ensure optimal performance. Overall, the Audi A6 Avant 3.0 TDI V6 S tronic represents a well-engineered and capable wagon that continues to offer a compelling blend of luxury, performance, and practicality for discerning buyers.


