The Audi A7 Sportback (C8) 55 TFSI quattro S tronic Mild Hybrid represents a sophisticated blend of performance, technology, and efficiency within the Audi A7 lineup. Produced from 2017 through May 2023, this variant occupied a prominent mid-to-upper position in the C8 generation, which itself was built upon the Volkswagen Group’s MLB Evo platform. The C8 A7 Sportback aimed to deliver a more dynamic and technologically advanced experience compared to its predecessor, emphasizing its “Gran Turismo” character with a focus on long-distance comfort and refined performance. This specific 55 TFSI model combined a potent turbocharged V6 engine with Audi’s quattro all-wheel-drive system and a seven-speed S tronic dual-clutch transmission, further enhanced by a 48-volt mild hybrid system.
Technical Specifications
| Brand | Audi |
| Model | A7 |
| Generation | A7 Sportback (C8) |
| Type | 55 TFSI (340 Hp) quattro S tronic Mild Hybrid |
| Start of production | 2017 |
| End of production | May, 2023 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Liftback |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 9.2-9.5 l/100 km (25.6 – 24.8 US mpg) |
| CO2 emissions (WLTP) | 208-217 g/km |
| Fuel consumption (urban) | 9.1-9.3 l/100 km (25.8 – 25.3 US mpg) |
| Fuel consumption (extra urban) | 5.4-5.9 l/100 km (43.6 – 39.9 US mpg) |
| Fuel consumption (combined) | 6.8-7.2 l/100 km (34.6 – 32.7 US mpg) |
| CO2 emissions | 154-163 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.3 sec |
| Acceleration 0 – 62 mph | 5.3 sec |
| Acceleration 0 – 60 mph | 5 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 5.3 kg/Hp |
| Weight-to-torque ratio | 3.6 kg/Nm |
| Power | 340 Hp @ 5000-6400 rpm |
| Torque | 500 Nm @ 1370-4500 rpm (368.78 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | DLZA |
| Engine displacement | 2995 cm3 (182.77 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 7.6 l (8.03 US qt | 6.69 UK qt) |
| Coolant capacity | 11.5 l (12.15 US qt | 10.12 UK qt) |
| Kerb Weight | 1815 kg (4001.39 lbs.) |
| Max. weight | 2470 kg (5445.42 lbs.) |
| Max load | 655 kg (1444.03 lbs.) |
| Trunk (boot) space – minimum | 535 l (18.89 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 without brakes | 750 kg (1653.47 lbs.) |
| Length | 4969 mm (195.63 in.) |
| Width | 1908 mm (75.12 in.) |
| Width including mirrors | 2118 mm (83.39 in.) |
| Height | 1422 mm (55.98 in.) |
| Wheelbase | 2926 mm (115.2 in.) |
| Front track | 1651 mm (65 in.) |
| Rear track | 1637 mm (64.45 in.) |
| Drag coefficient (Cd) | 0.26 |
| Minimum turning circle | 12.2 m (40.03 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 7 |
| Gearbox type | Automatic transmission S tronic |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
Powertrain & Engine Architecture
At the heart of the A7 55 TFSI lies the DLZA engine, a 3.0-liter V6 gasoline engine. This engine utilizes a single twin-scroll turbocharger and direct fuel injection to deliver a robust 340 horsepower and 500 Nm (368 lb-ft) of torque. The engine’s output is characterized by a broad torque curve, providing strong acceleration across a wide RPM range. The mild hybrid system, operating at 48 volts, incorporates a belt-driven starter-generator (BSG) and a small lithium-ion battery. This system enables features like extended engine-off coasting, smoother start-stop operation, and a slight power boost during acceleration. The seven-speed S tronic dual-clutch transmission offers rapid and precise gear changes, contributing to the car’s dynamic performance. The transmission is calibrated to provide both comfortable cruising and responsive downshifts.
Driving Characteristics
The combination of the 340 hp engine, quattro all-wheel drive, and S tronic transmission results in a driving experience that is both refined and engaging. Acceleration from 0 to 60 mph takes approximately 5 seconds, and the car feels confident and stable at highway speeds. The quattro system provides excellent traction in various weather conditions, while the S tronic transmission ensures seamless gear changes. Compared to the more performance-oriented S7 variant, the 55 TFSI prioritizes comfort and fuel efficiency. While it doesn’t offer the same level of outright speed, it still delivers ample power for everyday driving and spirited excursions. Compared to the 45 TDI diesel variant, the 55 TFSI offers a more responsive and characterful engine, albeit with slightly higher fuel consumption.
Equipment & Trim Levels
The A7 55 TFSI typically came well-equipped as standard. Features included Audi’s Virtual Cockpit digital instrument cluster, a 10.1-inch touchscreen infotainment system with MMI Navigation plus, leather upholstery, three-zone automatic climate control, and a suite of driver-assistance systems such as adaptive cruise control and lane-keeping assist. Optional extras included features like a Bang & Olufsen sound system, massaging front seats, a head-up display, and various cosmetic enhancements. Trim levels varied by market, but generally offered options for upgraded interior materials, exterior styling packages, and additional driver-assistance features.
Chassis & Braking
The A7 Sportback (C8) features a sophisticated chassis design with independent multi-link suspension at both the front and rear axles. This setup provides a comfortable ride quality while maintaining good handling characteristics. The suspension is tuned to balance comfort and control, offering a composed ride even on uneven surfaces. Braking duties are handled by ventilated disc brakes on all four wheels. The braking system is responsive and provides ample stopping power. Electronic stability control (ESC) and anti-lock braking system (ABS) are standard features, enhancing safety and stability.
Market Reception & Comparison
The Audi A7 Sportback (C8) 55 TFSI was generally well-received by automotive critics. It was praised for its stylish design, luxurious interior, and refined driving experience. The 55 TFSI variant was often seen as a sweet spot in the A7 lineup, offering a good balance of performance, comfort, and fuel efficiency. Compared to its rivals, such as the BMW 5 Series Gran Turismo and Mercedes-Benz CLS, the A7 was often lauded for its advanced technology and elegant interior design. Fuel economy figures were competitive for its class, and reliability reports have been generally positive.
Legacy
The Audi A7 Sportback (C8) 55 TFSI represents a significant step forward in terms of technology and refinement for the A7 model line. The DLZA engine, combined with the mild hybrid system and S tronic transmission, provides a compelling powertrain that delivers both performance and efficiency. While the C8 generation has been superseded by the newer C9 model, the C8 55 TFSI remains a desirable used car option, offering a blend of luxury, performance, and technology at a more accessible price point. The powertrain has proven to be relatively reliable, with proper maintenance, making it a solid choice for buyers seeking a sophisticated and capable grand tourer.
