The Audi A6 Sedan (C8) 45 TFSI quattro ultra S tronic represents a significant iteration in Audi’s long-running A6 lineage. Introduced for the 2019 model year and continuing through 2020, this variant occupied a key position in the C8 A6 range, offering a blend of performance, technology, and efficiency aimed at the executive sedan market in North America and Europe. It’s built on the MLB Evo platform, shared with other Volkswagen Group vehicles, and represents a move towards greater digitization and mild hybridization within the A6 family.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Sedan (C8) |
| Type (Engine) | 45 TFSI (245 Hp) quattro ultra S tronic |
| Start of production | 2019 |
| End of production | 2020 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Combined fuel consumption (WLTP) | 8.0-8.5 l/100 km (29.4 – 27.7 US mpg, 35.3 – 33.2 UK mpg, 12.5 – 11.8 km/l) |
| CO2 emissions (WLTP) | 182-193 g/km |
| Fuel consumption (urban) | 8.1-8.4 l/100 km (29 – 28 US mpg, 34.9 – 33.6 UK mpg, 12.3 – 11.9 km/l) |
| Fuel consumption (extra urban) | 5.4-5.8 l/100 km (43.6 – 40.6 US mpg, 52.3 – 48.7 UK mpg, 18.5 – 17.2 km/l) |
| Fuel consumption (combined) | 6.4-6.8 l/100 km (36.8 – 34.6 US mpg, 44.1 – 41.5 UK mpg, 15.6 – 14.7 km/l) |
| CO2 emissions | 145-154 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6 sec |
| Acceleration 0 – 62 mph | 6 sec |
| Acceleration 0 – 60 mph | 5.7 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d – TEMP |
| Weight-to-power ratio | 6.9 kg/Hp, 144.5 Hp/tonne |
| Weight-to-torque ratio | 4.6 kg/Nm, 218.3 Nm/tonne |
| Power | 245 Hp @ 5000-6500 rpm |
| Power per litre | 123.5 Hp/l |
| Torque | 370 Nm @ 1600-4300 rpm (272.9 lb.-ft. @ 1600-4300 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | DLBA, DKNA, DLHA |
| Engine displacement | 1984 cm3 (121.07 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 5.2 l (5.49 US qt | 4.58 UK qt) |
| Coolant | 8.3 l (8.77 US qt | 7.3 UK qt) |
| Kerb Weight | 1695 kg (3736.84 lbs.) |
| Max. weight | 2310 kg (5092.68 lbs.) |
| Max load | 615 kg (1355.84 lbs.) |
| Trunk (boot) space – minimum | 530 l (18.72 cu. ft.) |
| Fuel tank capacity | 63 l (16.64 US gal | 13.86 UK gal) |
| Max. roof load | 90 kg (198.42 lbs.) |
| Permitted trailer load with brakes (8%) | 2000 kg (4409.25 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 | 95 kg (209.44 lbs.) |
| Length | 4939 mm (194.45 in.) |
| Width | 1886 mm (74.25 in.) |
| Width including mirrors | 2110 mm (83.07 in.) |
| Height | 1457 mm (57.36 in.) |
| Wheelbase | 2924 mm (115.12 in.) |
| Front track | 1630 mm (64.17 in.) |
| Rear (Back) track | 1617 mm (63.66 in.) |
| Front overhang | 920 mm (36.22 in.) |
| Rear overhang | 1095 mm (43.11 in.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels permanently, and the rear wheels are driven through an electrically or mechanically operated clutch if necessary. |
| 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 multi-link suspension |
| 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 | 225/60 R17 |
| Wheel rims size | 7.5 J x 17 |
INTRODUCTION
The Audi A6 Sedan (C8) 45 TFSI quattro ultra S tronic, produced from 2019 to 2020, is a four-door, five-passenger luxury sedan. It represents the eighth generation of the A6, internally designated as the C8. This variant is characterized by its 2.0-liter turbocharged four-cylinder engine paired with a seven-speed S tronic dual-clutch transmission and Audi’s quattro all-wheel-drive system. The “45 TFSI” designation doesn’t correlate directly with engine displacement; it’s part of Audi’s power-based naming convention. The “ultra” suffix indicates the inclusion of Audi’s mild-hybrid technology, designed to improve fuel efficiency. This model aimed to provide a balance between performance and economy, appealing to buyers seeking a refined driving experience without the higher costs associated with the more powerful engine options.
Powertrain & Engine Architecture
At the heart of the A6 45 TFSI lies the EA888 2.0-liter inline-four cylinder engine, specifically coded DLBA, DKNA, or DLHA depending on the specific market and production date. This engine utilizes direct fuel injection and a single twin-scroll turbocharger with intercooling. The engine produces 245 horsepower at 5000-6500 rpm and 272.9 lb-ft of torque between 1600 and 4300 rpm. The engine incorporates Audi’s Valve Lift System (AVS) on the intake side, allowing for variable valve lift to optimize performance and efficiency. The S tronic seven-speed dual-clutch transmission provides rapid and smooth gear changes. The quattro ultra all-wheel-drive system is a demand-driven system; it primarily operates in front-wheel drive to conserve fuel, engaging the rear axle when traction demands it. The mild-hybrid system, utilizing a 48-volt electrical architecture, incorporates a belt starter generator (BSG) that enables start-stop functionality, coasting with the engine off, and regenerative braking to recoup energy.
Driving Characteristics
The A6 45 TFSI offers a composed and refined driving experience. While not as overtly sporty as the higher-output variants, the 245 hp engine provides ample power for everyday driving and confident highway passing. The S tronic transmission contributes to quick acceleration, and the quattro all-wheel-drive system provides excellent grip in various weather conditions. The gear ratios are tuned for a balance of performance and fuel economy, with a relatively tall final drive. Compared to the more powerful 3.0-liter V6 models, the 45 TFSI feels less urgent in its acceleration, but it offers a smoother and more fuel-efficient ride. The steering is precise and well-weighted, providing a connected feel to the road. The suspension, typically a multi-link setup front and rear, is tuned for comfort, absorbing bumps and imperfections with ease.
Equipment & Trim Levels
The A6 45 TFSI typically came well-equipped as standard. Common features included leather upholstery, tri-zone automatic climate control, a 10.1-inch touchscreen infotainment system with Audi’s MMI touch response, a digital instrument cluster (Audi Virtual Cockpit), and a suite of driver-assistance systems such as lane departure warning, automatic emergency braking, and adaptive cruise control. Optional extras included a premium sound system (Bang & Olufsen), a head-up display, massaging front seats, and various interior trim packages. Trim levels varied by market, but generally, the 45 TFSI served as a mid-range offering, positioned above the base models and below the more luxurious and performance-oriented trims.
Chassis & Braking
The C8 A6 utilizes a robust chassis with an independent multi-link suspension at both the front and rear axles. This configuration provides a comfortable ride and precise handling. The front suspension features aluminum-alloy components to reduce weight. The braking system consists of ventilated discs at all four corners. ABS (Anti-lock Braking System) is standard, along with electronic stability control. The 45 TFSI variant typically features slightly smaller brake rotors compared to the higher-performance models. The steering system is a rack-and-pinion setup with electric power assistance, offering precise and responsive steering feel.
Market Reception & Comparison
The Audi A6 45 TFSI quattro ultra S tronic was generally well-received by automotive critics. It was praised for its refined driving experience, comfortable interior, and advanced technology. Fuel economy was considered competitive for its class, and the mild-hybrid system was seen as a positive step towards greater efficiency. Compared to its rivals, such as the BMW 530i and Mercedes-Benz E350, the A6 45 TFSI offered a compelling combination of features and value. Some critics noted that the 2.0-liter engine could feel strained under hard acceleration, particularly when fully loaded. However, the overall consensus was that the 45 TFSI provided a balanced and enjoyable driving experience for most buyers.
Legacy
The EA888 2.0-liter turbocharged engine has proven to be a reliable and durable powerplant, and the S tronic transmission is generally considered robust when properly maintained. The quattro ultra all-wheel-drive system has also demonstrated good reliability. In the used car market, the A6 45 TFSI represents a good value proposition, offering a luxurious and well-equipped sedan at a more affordable price point than the higher-end trims. Regular maintenance, including oil changes and transmission servicing, is crucial to ensure long-term reliability. The C8 A6, including the 45 TFSI variant, has established itself as a popular choice among buyers seeking a sophisticated and technologically advanced luxury sedan.
