The Audi A6 Sedan (C8, facelift released in 2023) 35 TDI represents a key offering in Audi’s mid-size executive car lineup. Introduced in June 2023 and continuing through March 2025, this variant combines a 2.0-liter turbocharged diesel engine with a mild hybrid system and Audi’s seven-speed S tronic dual-clutch transmission. Positioned as a fuel-efficient and technologically advanced option, the 35 TDI aimed to balance performance with economy, appealing to buyers prioritizing practicality and refinement. It sits within the C8 generation A6, which itself is built on the MLB Evo platform, shared with other Volkswagen Group vehicles.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Sedan (C8, facelift 2023) |
| Type (Engine) | 35 TDI (163 Hp) Mild Hybrid S tronic |
| Start of production | June, 2023 |
| End of production | March, 2025 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Combined fuel consumption (WLTP) | 5.1-5.9 l/100 km (46.1 – 39.9 US mpg, 55.4 – 47.9 UK mpg, 19.6 – 16.9 km/l) |
| CO2 emissions (WLTP) | 133-155 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 9.2 sec |
| Acceleration 0 – 62 mph | 9.2 sec |
| Acceleration 0 – 60 mph | 8.7 sec |
| Maximum speed | 224 km/h (139.19 mph) |
| Emission standard | Euro 6e |
| Weight-to-power ratio | 10.1 kg/Hp, 99.4 Hp/tonne |
| Weight-to-torque ratio | 4.4 kg/Nm, 225.6 Nm/tonne |
| Net (usable) battery capacity | 0.15 kWh |
| Battery voltage | 12 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Battery location | Under the front hood |
| Recuperation output | 6 kW |
| Electric motor power | 3 Hp |
| Electric motor Torque | 60 Nm (44.25 lb.-ft.) |
| Electric motor location | Front, Longitudinal |
| Power | 163 Hp @ 3250-4400 rpm |
| Torque | 370 Nm @ 1750-3000 rpm (272.9 lb.-ft. @ 1750-3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | EA288evo |
| Engine displacement | 1968 cm3 (120.09 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 81 mm (3.19 in.) |
| Piston Stroke | 95.5 mm (3.76 in.) |
| Compression ratio | 15.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5.5 l (5.81 US qt | 4.84 UK qt) |
| Coolant | 12.1 l (12.79 US qt | 10.65 UK qt) |
| Kerb Weight | 1640 kg (3615.58 lbs.) |
| Max. weight | 2255 kg (4971.42 lbs.) |
| Max load | 615 kg (1355.84 lbs.) |
| Trunk (boot) space – minimum | 530 l (18.72 cu. ft.) |
| Trunk (boot) space – maximum | 995 l (35.14 cu. ft.) |
| Fuel tank capacity | 63 l (16.64 US gal | 13.86 UK gal) |
| AdBlue tank | 12 l (3.17 US gal | 2.64 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.) |
| Drag coefficient (Cd) | 0.27 |
| Minimum turning circle (turning diameter) | 12.1 m (39.7 ft.) |
| Approach angle | 13.7° |
| Departure angle | 16.9° |
| Drivetrain Architecture | ICE and electric motor drive the front wheels in mixed mode. |
| 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, 318 mm |
| Rear brakes | Disc, 300 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 225/60 R17; 225/55 R18; 245/45 R19; 255/40 R20; 255/35 R21 |
| Wheel rims size | 7.5J x 17; 8J x 18; 8.5J x 19; 8.5J x 20; 8.5J x 21 |
INTRODUCTION
The Audi A6 Sedan (C8) 35 TDI Mild Hybrid S tronic, launched in 2023 following the facelift of the C8 generation, represents a significant step towards electrification within Audi’s established executive sedan range. This variant utilizes a 2.0-liter four-cylinder diesel engine, coupled with a 48-volt mild hybrid system, and a seven-speed S tronic dual-clutch transmission. The facelift brought updated styling, enhanced technology, and refined powertrain options, with the 35 TDI aiming to deliver a balance of performance, efficiency, and comfort. It was primarily marketed in Europe and other regions where diesel engines remain popular, offering a compelling alternative to gasoline and fully hybrid options.
Powertrain & Engine Architecture
At the heart of the A6 35 TDI lies the EA288evo 2.0-liter inline-four diesel engine. This engine, a mainstay in the Volkswagen Group’s lineup, benefits from advanced technologies like a turbocharger with variable geometry, direct injection, and a sophisticated common rail fuel injection system. The engine produces 163 horsepower at 3250-4400 rpm and 370 Nm (272.9 lb-ft) of torque between 1750-3000 rpm. The mild hybrid system, utilizing a 48V lithium-ion battery and a belt-driven starter-generator, enables features like extended start-stop operation, coasting with the engine switched off, and a slight power boost during acceleration. The seven-speed S tronic transmission provides quick and smooth gear changes, contributing to both performance and fuel efficiency. This transmission is known for its responsiveness and efficiency compared to traditional torque-converter automatics.
Driving Characteristics
The A6 35 TDI with the S tronic transmission delivers a refined and comfortable driving experience. While not overtly sporty, the engine provides adequate power for everyday driving and highway cruising. Acceleration from 0-100 km/h (0-62 mph) takes approximately 9.2 seconds. The S tronic transmission’s quick shifts and well-chosen gear ratios ensure that the engine remains in its optimal power band. Compared to higher-output A6 variants like the 40 TDI or 50 TDI, the 35 TDI offers a more relaxed driving experience, prioritizing fuel economy over outright performance. The mild hybrid system contributes to a smoother start-stop experience and a slight improvement in responsiveness. The front-wheel-drive configuration provides good traction in most conditions, although all-wheel drive (quattro) was available on other A6 trims.
Equipment & Trim Levels
The A6 35 TDI typically came well-equipped, reflecting Audi’s reputation for interior quality and technology. Standard features generally included Audi’s Virtual Cockpit digital instrument cluster, a touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, 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 could include features like a premium sound system, adaptive cruise control, a head-up display, and matrix LED headlights. Trim levels varied by market, but generally offered increasing levels of luxury and technology. The 35 TDI often served as a gateway into the A6 range, offering a compelling combination of features and value.
Chassis & Braking
The A6 35 TDI utilizes a sophisticated chassis design featuring independent multi-link suspension at both the front and rear. This setup provides a comfortable ride quality while maintaining good handling characteristics. The suspension is tuned to prioritize comfort, but still offers a reasonable level of body control. Braking duties are handled by ventilated discs at the front and solid discs at the rear. ABS (Anti-lock Braking System) is standard, along with other electronic stability control systems. The steering is an electric power-assisted rack and pinion system, providing precise and responsive steering feel. Wheel sizes typically ranged from 17 to 21 inches, depending on the trim level and options selected.
Market Reception & Comparison
The A6 35 TDI was generally well-received by automotive critics, who praised its fuel efficiency, comfortable ride, and refined interior. However, some reviewers noted that the engine lacked the outright performance of higher-output A6 variants. Compared to the A6 40 TDI, the 35 TDI offered lower running costs but sacrificed some performance. Against competitors like the BMW 5 Series and Mercedes-Benz E-Class, the A6 35 TDI offered a compelling blend of technology, comfort, and efficiency, particularly in markets where diesel engines are favored. Fuel economy figures of 5.1-5.9 l/100 km (46.1 – 39.9 US mpg) were a key selling point.
Legacy
The EA288evo engine family, including the version used in the A6 35 TDI, has proven to be relatively reliable, although regular maintenance is crucial. The mild hybrid system adds a layer of complexity, but has also demonstrated good durability. In the used car market, the A6 35 TDI represents a good value proposition for buyers seeking a comfortable, efficient, and well-equipped executive sedan. Its relatively low running costs and proven powertrain make it an attractive option for those covering long distances. As with any used vehicle, a thorough inspection and maintenance history check are recommended before purchase.
