The Audi A6L Sedan (C8) 45 TFSI S tronic, introduced in 2019, represents a significant iteration of Audi’s mid-size luxury sedan. Positioned as a key variant within the C8 A6L range – specifically tailored for the Chinese market with its extended wheelbase – the 45 TFSI model balances performance and efficiency. It slots into the lineup as a mainstream offering, providing a step up from the base engine options while remaining more accessible than the higher-performance variants like the 55 TFSI. This model is characterized by its 2.0-liter turbocharged four-cylinder engine paired with Audi’s renowned seven-speed S tronic dual-clutch transmission and front-wheel drive.
Technical Specifications
| Brand | Audi |
| Model | A6L Sedan |
| Generation | A6L Sedan (C8) |
| Type (Engine) | 45 TFSI (224 Hp) S tronic |
| Start of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 8.6 l/100 km (27.4 US mpg) |
| Fuel consumption (extra urban) | 5.8 l/100 km (40.6 US mpg) |
| Fuel consumption (combined) | 6.8 l/100 km (34.6 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7.9 sec |
| Acceleration 0 – 62 mph | 7.9 sec |
| Acceleration 0 – 60 mph | 7.5 sec |
| Maximum speed | 245 km/h (152.24 mph) |
| Weight-to-power ratio | 8.1 kg/Hp |
| Weight-to-torque ratio | 4.9 kg/Nm |
| Power | 224 Hp @ 5000-6000 rpm |
| Torque | 370 Nm @ 1600-4500 rpm (272.9 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | DLBA |
| 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 capacity | 10 l (10.57 US qt | 8.8 UK qt) |
| Kerb Weight | 1810-1830 kg (3990.37 – 4034.46 lbs.) |
| Trunk (boot) space – maximum | 430 l (15.19 cu. ft.) |
| Fuel tank capacity | 73 l (19.28 US gal | 16.06 UK gal) |
| Length | 5038-5050 mm (198.35 – 198.82 in.) |
| Width | 1886 mm (74.25 in.) |
| Width including mirrors | 2110 mm (83.07 in.) |
| Height | 1475 mm (58.07 in.) |
| Wheelbase | 3024 mm (119.06 in.) |
| Front track | 1630 mm (64.17 in.) |
| Rear track | 1616 mm (63.62 in.) |
| Ride height (ground clearance) | 117 mm (4.61 in.) |
| Minimum turning circle | 12.6 m (41.34 ft.) |
| Number of gears | 7 |
| Gearbox type | Automatic transmission S tronic |
Powertrain & Engine Architecture
At the heart of the A6L 45 TFSI lies the DLBA engine, a 2.0-liter inline-four cylinder gasoline engine. This engine utilizes direct fuel injection and is coupled with a single twin-scroll turbocharger and intercooler to enhance both power and efficiency. The engine produces 224 horsepower at 5000-6000 rpm and 370 Nm (272.9 lb-ft) of torque between 1600 and 4500 rpm. The engine’s timing chain is located at the rear of the engine, a design choice intended to reduce noise and vibration. The S tronic seven-speed dual-clutch transmission provides rapid and smooth gear changes. This transmission features two clutches, one for even-numbered gears and one for odd-numbered gears, allowing for pre-selection of the next gear and minimizing interruption in power delivery. The front-wheel drive configuration is standard for this variant, prioritizing fuel economy and cost-effectiveness.
Driving Characteristics
The 45 TFSI S tronic delivers a comfortable and refined driving experience. While not as overtly sporty as the higher-output models, the 224 hp engine provides ample power for everyday driving and highway cruising. Acceleration from 0-60 mph takes approximately 7.5 seconds. The S tronic transmission contributes to a responsive feel, with quick shifts and minimal torque interruption. The front-wheel drive setup offers good traction in most conditions, but can exhibit some torque steer under hard acceleration. The gear ratios are tuned for a balance between fuel efficiency and performance, with taller gears for highway cruising and shorter gears for quicker acceleration. Compared to a manual transmission equipped A6L, the S tronic offers greater convenience and ease of use, particularly in urban traffic.
Equipment & Trim Levels
The A6L 45 TFSI S tronic typically comes well-equipped with standard features including leather upholstery, a panoramic sunroof, a premium sound system, and a comprehensive suite of driver-assistance systems. The interior features Audi’s MMI touch response system, with dual touchscreen displays controlling infotainment and climate functions. Optional extras often include features like adaptive cruise control, a head-up display, and upgraded interior trim packages. The specific trim level can vary depending on the market, but generally focuses on providing a luxurious and technologically advanced experience.
Chassis & Braking
The A6L 45 TFSI utilizes a MacPherson strut front suspension and a four-link rear suspension. This setup provides a good balance between ride comfort and handling precision. The suspension is tuned to prioritize comfort, but still offers adequate control in corners. Braking duties are handled by ventilated disc brakes on all four wheels. Electronic stability control (ESC) and anti-lock braking system (ABS) are standard features. Rear drum brakes are not used on this model. The steering system is an electromechanical power steering system, providing precise and responsive steering feel.
Market Reception & Comparison
The A6L 45 TFSI S tronic was generally well-received by automotive critics. It was praised for its comfortable ride, refined interior, and efficient engine. Fuel economy figures of around 34.6 US mpg combined were considered competitive for its class. Compared to the A6L 55 TFSI, the 45 TFSI offers a more affordable entry point into the A6L range, but sacrifices some performance. Compared to diesel variants (where available), the 45 TFSI offers a quieter and smoother driving experience, but may not match the diesel’s fuel economy in certain driving conditions. Reliability reports have been generally positive, with the 2.0-liter engine and S tronic transmission proving to be relatively durable.
Legacy
The Audi A6L 45 TFSI S tronic represents a significant step forward in terms of technology and refinement for Audi’s mid-size sedan. The combination of the 2.0-liter turbocharged engine and S tronic transmission has proven to be a reliable and efficient powertrain. In the used car market, these models are generally sought after for their balance of performance, luxury, and fuel economy. The C8 generation A6L, and specifically the 45 TFSI variant, has established itself as a popular choice among buyers seeking a comfortable and technologically advanced luxury sedan.
