The Audi A6 Avant (C8) 45 TFSI S tronic, produced from 2018 to 2020, represents a compelling blend of performance, practicality, and technology within the fifth generation (C8) of Audi’s flagship executive wagon. Positioned as a mid-range offering in the A6 Avant lineup, it served as a popular alternative to the base 40 TFSI and the higher-performance 55 TFSI variants. This model aimed to deliver a balance between fuel efficiency and engaging driving dynamics, appealing to buyers seeking a versatile and refined vehicle for both daily commutes and long-distance travel. The C8 generation marked a significant departure from its predecessor, incorporating a new platform, advanced driver-assistance systems, and a modernized interior.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Avant (C8) |
| Type (Engine) | 45 TFSI (245 Hp) S tronic |
| Start of production | 2018 |
| End of production | 2020 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban | 7.9-8.2 l/100 km (29.8 – 28.7 US mpg, 35.8 – 34.4 UK mpg, 12.7 – 12.2 km/l) |
| Fuel consumption (economy) – extra urban | 5.4-5.9 l/100 km (43.6 – 39.9 US mpg, 52.3 – 47.9 UK mpg, 18.5 – 16.9 km/l) |
| Fuel consumption (economy) – combined | 6.3-6.8 l/100 km (37.3 – 34.6 US mpg, 44.8 – 41.5 UK mpg, 15.9 – 14.7 km/l) |
| CO2 emissions | 144-154 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7 sec |
| Acceleration 0 – 62 mph | 7 sec |
| Acceleration 0 – 60 mph | 6.7 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d – TEMP |
| Weight-to-power ratio | 7 kg/Hp, 143.7 Hp/tonne |
| Weight-to-torque ratio | 4.6 kg/Nm, 217 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 | 1705 kg (3758.88 lbs.) |
| Max. weight | 2310 kg (5092.68 lbs.) |
| Max load | 605 kg (1333.8 lbs.) |
| Trunk (boot) space – minimum | 565 l (19.95 cu. ft.) |
| Fuel tank capacity | 63 l (16.64 US gal | 13.86 UK gal) |
| Max. roof load | 100 kg (220.46 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 | 1467 mm (57.76 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 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 multi-link suspension |
| 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 | 225/60 R17 |
| Wheel rims size | 7.5 J x 17 |
Powertrain & Engine Architecture
The 45 TFSI designation indicates the engine’s power output, and it’s powered by a 2.0-liter inline-four cylinder engine, specifically utilizing the EA888 engine family. Engine codes such as DLBA, DKNA, and DLHA were commonly found in this variant. This engine features direct fuel injection and a single turbocharger with an intercooler, delivering a robust 245 horsepower and 272.9 lb.-ft. of torque. The turbocharger provides a broad torque curve, peaking from 1600 to 4300 rpm, ensuring responsive acceleration in various driving situations. The engine is longitudinally mounted, contributing to a balanced weight distribution. The seven-speed S tronic dual-clutch transmission is a key component, offering quick and seamless gear changes. This transmission is known for its efficiency and responsiveness, enhancing both performance and fuel economy.
Driving Characteristics
The A6 Avant 45 TFSI S tronic delivers a refined and comfortable driving experience. The 245 hp engine provides ample power for everyday driving and overtaking maneuvers. While not as overtly sporty as the 55 TFSI, the 45 TFSI offers a good balance between performance and efficiency. The S tronic transmission contributes to smooth acceleration, and the gear ratios are well-tuned for both city and highway driving. Compared to the manual transmission options available in other A6 variants, the S tronic provides a more effortless driving experience, particularly in stop-and-go traffic. The front-wheel-drive configuration provides good traction in most conditions, although all-wheel drive (quattro) was available as an option for enhanced stability and grip.
Equipment & Trim Levels
The 45 TFSI S tronic typically came standard with a generous array of features, including Audi’s MMI touch response infotainment system with dual touchscreen displays, leather upholstery, three-zone automatic climate control, and a suite of driver-assistance systems such as lane departure warning and automatic emergency braking. Optional extras included features like a Bang & Olufsen sound system, a head-up display, adaptive cruise control, and matrix LED headlights. Interior trim options varied, allowing buyers to personalize the cabin with different wood or aluminum inlays. The standard seats provided excellent comfort and support, and optional sport seats were available for a more bolstered feel.
Chassis & Braking
The C8 A6 Avant utilizes a sophisticated chassis design featuring independent multi-link suspension at both the front and rear axles. This suspension setup provides a comfortable ride while maintaining good handling characteristics. The front suspension incorporates a five-link design, while the rear features a more complex multi-link setup. Braking duties are handled by ventilated discs on all four wheels, providing ample stopping power. The anti-lock braking system (ABS) and electronic stability control (ESC) are standard features, enhancing safety and control. The steering system is an electric power-assisted rack and pinion system, offering precise and responsive steering feel.
Market Reception & Comparison
The A6 Avant 45 TFSI S tronic was generally well-received by automotive critics. It was praised for its refined driving experience, comfortable interior, and advanced technology. Compared to the base 40 TFSI model, the 45 TFSI offered a noticeable performance upgrade without sacrificing fuel efficiency. The 55 TFSI, with its more powerful engine and available quattro all-wheel drive, provided a sportier driving experience but came at a higher price point. Fuel economy figures for the 45 TFSI were competitive within its segment, averaging around 37.3 – 34.6 US mpg in combined driving. Reliability reports have generally been positive, with the EA888 engine proving to be a durable and dependable unit.
Legacy
The Audi A6 Avant (C8) 45 TFSI S tronic remains a desirable used car option, offering a compelling combination of luxury, performance, and practicality. The EA888 engine has a proven track record for reliability, and the S tronic transmission, while requiring periodic maintenance, is generally robust. The C8 generation A6 Avant represents a significant step forward in terms of technology and refinement, and the 45 TFSI variant strikes a sweet spot for buyers seeking a well-rounded executive wagon. As with any used vehicle, prospective buyers should ensure a thorough inspection and maintenance history to ensure long-term reliability.
