The Audi A6 Sedan (4G, C7 facelift) 3.0 TDI quattro S tronic, produced from 2016 to 2018, represents a refinement of the fourth-generation A6, offering a blend of luxury, performance, and efficiency. This variant occupied a mid-to-high position within the A6 lineup, appealing to buyers seeking a powerful and capable executive sedan with all-wheel drive. It was a key model in Audi’s European and global strategy, competing with the BMW 5 Series and Mercedes-Benz E-Class. The C7 facelift brought updated styling, enhanced technology, and improved engine efficiency compared to the pre-facelift models.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Sedan (4G, C7 facelift 2016) |
| Type (Engine) | 3.0 TDI (218 Hp) quattro S tronic |
| Start of production | 2016 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 5.5-5.7 l/100 km (42.8 – 41.3 US mpg) |
| Fuel consumption (extra urban) | 4.6-4.7 l/100 km (51.1 – 50 US mpg) |
| Fuel consumption (combined) | 5.0-5.1 l/100 km (47 – 46.1 US mpg) |
| CO2 emissions | 128-134 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 6.6 sec |
| Acceleration 0 – 62 mph | 6.6 sec |
| Acceleration 0 – 60 mph | 6.3 sec |
| Maximum speed | 245 km/h (152.24 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.1 kg/Hp |
| Weight-to-torque ratio | 3.5 kg/Nm |
| Power | 218 Hp @ 3250-5000 rpm |
| Torque | 500 Nm @ 1250-3000 rpm (368.78 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | CZVA, CZVB |
| 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 | 16.8:1 |
| 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 | 1765 kg (3891.16 lbs.) |
| Max. weight | 2375 kg (5235.98 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 | 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 | 4932 mm (194.17 in.) |
| Width | 1874 mm (73.78 in.) |
| Width including mirrors | 2086 mm (82.13 in.) |
| Height | 1455 mm (57.28 in.) |
| Wheelbase | 2912 mm (114.65 in.) |
| Front track | 1627 mm (64.06 in.) |
| Rear (Back) track | 1618 mm (63.7 in.) |
| Front overhang | 925 mm (36.42 in.) |
| Rear overhang | 1095 mm (43.11 in.) |
| Drag coefficient (Cd) | 0.27 |
| Minimum turning circle | 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 | 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 | 8J x 17 |
INTRODUCTION
The Audi A6 Sedan (4G, C7 facelift) 3.0 TDI quattro S tronic, launched in 2016, built upon the success of the C7 generation A6, which debuted in 2011. The facelift brought a more aggressive front-end design, revised headlights, and updated interior technology. This particular variant, powered by the 3.0-liter TDI engine and paired with the seven-speed S tronic dual-clutch transmission and Audi’s quattro all-wheel-drive system, was positioned as a premium offering within the A6 range. It aimed to deliver a refined driving experience with strong performance and respectable fuel economy. The C7 A6 was a significant model for Audi, representing a move towards more sophisticated technology and a greater emphasis on driver engagement.
Powertrain & Engine Architecture
At the heart of the A6 3.0 TDI quattro S tronic lies the 3.0-liter V6 diesel engine, designated as the CZVA or CZVB engine code depending on specific market regulations. This engine is a turbocharged common-rail direct injection diesel, known for its robust construction and strong torque output. The engine features a single turbocharger with an intercooler, boosting power and efficiency. The common-rail injection system delivers fuel at extremely high pressure, ensuring optimal combustion. The engine utilizes a Dual Overhead Camshaft (DOHC) valvetrain with four valves per cylinder, maximizing airflow and contributing to its power delivery. The S tronic seven-speed dual-clutch transmission provides rapid and smooth gear changes, enhancing both performance and fuel efficiency. 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, providing excellent traction and stability in all weather conditions.
Driving Characteristics
The 3.0 TDI quattro S tronic delivers a refined and capable driving experience. The engine produces 218 horsepower and a substantial 500 Nm (368 lb-ft) of torque, available from a low 1250 rpm. This abundant torque provides strong acceleration in everyday driving situations, with a 0-60 mph time of around 6.3 seconds. The S tronic transmission contributes to this responsiveness, offering quick and seamless gear changes. Compared to the lower-powered 1.8 TFSI or 2.0 TDI variants, the 3.0 TDI offers significantly more performance and a more relaxed driving experience, particularly when fully loaded or traveling at highway speeds. While not as sporty as the S6 model, the 3.0 TDI provides a good balance between performance and comfort. The quattro all-wheel-drive system inspires confidence in challenging road conditions, providing enhanced grip and stability.
Equipment & Trim Levels
The A6 3.0 TDI 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. Standard safety features included ABS, electronic stability control, and multiple airbags. Optional extras included features such as a navigation system, a premium sound system (Bang & Olufsen), adaptive cruise control, and a head-up display. The interior trim levels varied, with options for different wood or aluminum inlays. The exterior could be customized with various wheel designs and paint colors.
Chassis & Braking
The A6 3.0 TDI quattro S tronic features an independent multi-link suspension at the front and an independent trapezoidal link suspension at the rear, providing a comfortable and controlled ride. The suspension is tuned to balance ride comfort with handling precision. Ventilated disc brakes are fitted to all four wheels, providing ample stopping power. The electronic stability control system helps to maintain control during emergency braking or cornering maneuvers. The steering is a rack-and-pinion system with electric power assistance, offering precise and responsive steering feel.
Market Reception & Comparison
The Audi A6 3.0 TDI quattro S tronic was generally well-received by automotive critics. It was praised for its refined engine, smooth transmission, comfortable ride, and sophisticated interior. Fuel economy was also a strong point, with combined fuel consumption figures around 5.0-5.1 l/100 km (47-46.1 US mpg). Compared to the 2.0 TDI variants, the 3.0 TDI offered a significant performance upgrade, while remaining relatively fuel-efficient. The 3.0 TDI was often seen as a more compelling alternative to the petrol-powered A6 models, offering a better balance of performance and economy. However, some critics noted that the ride could be slightly firm on certain road surfaces.
Legacy
The 3.0 TDI engine, in various iterations, has proven to be a reliable and durable powertrain. While diesel engines have faced increased scrutiny in recent years, the 3.0 TDI remains a popular choice in the used car market. Regular maintenance, including oil changes and filter replacements, is crucial for ensuring long-term reliability. The S tronic transmission is generally reliable, but requires periodic servicing to maintain optimal performance. The A6 C7 facelift, particularly the 3.0 TDI quattro S tronic variant, continues to be a sought-after executive sedan, offering a blend of luxury, performance, and practicality.
