The Audi A6 Avant 2.0 TDI ultra (150 hp) S tronic, produced from 2014 to 2016, represents a key variant within the fourth generation (4G, C7 facelift) of Audi’s popular executive wagon. Positioned as a fuel-efficient option within the A6 Avant range, it catered to buyers prioritizing economy and refinement over outright performance. This model aimed to balance the practicality of a station wagon with the sophistication expected of the Audi brand, primarily targeting the European market where diesel-powered estates are highly favored. The “ultra” designation signified Audi’s efforts to maximize efficiency through weight reduction and optimized engine tuning.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Avant (4G, C7 facelift 2014) |
| Type (Engine) | 2.0 TDI ultra (150 Hp) S tronic |
| Start of production | 2014 |
| End of production | 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 4.9 l/100 km (48 US mpg, 57.6 UK mpg, 20.4 km/l) |
| Fuel consumption (extra urban) | 4.1 l/100 km (57.4 US mpg, 68.9 UK mpg, 24.4 km/l) |
| Fuel consumption (combined) | 4.4 l/100 km (53.5 US mpg, 64.2 UK mpg, 22.7 km/l) |
| CO2 emissions | 114 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 9.9 sec |
| Acceleration 0 – 62 mph | 9.9 sec |
| Acceleration 0 – 60 mph | 9.4 sec |
| Maximum speed | 209 km/h (129.87 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 11.5 kg/Hp, 87 Hp/tonne |
| Weight-to-torque ratio | 4.9 kg/Nm, 202.9 Nm/tonne |
| Power | 150 Hp @ 3000-4200 rpm |
| Power per litre | 76.2 Hp/l |
| Torque | 350 Nm @ 1500-3000 rpm (258.15 lb.-ft. @ 1500-3000 rpm) |
| Maximum engine speed | 4500 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | CSUD, DDCB |
| 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 | 16.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 4.7 l (4.97 US qt | 4.14 UK qt) |
| Coolant | 12 l (12.68 US qt | 10.56 UK qt) |
| Kerb Weight | 1725 kg (3802.97 lbs.) |
| Max. weight | 2355 kg (5191.89 lbs.) |
| Max load | 630 kg (1388.91 lbs.) |
| Trunk (boot) space – minimum | 565 l (19.95 cu. ft.) |
| Trunk (boot) space – maximum | 1680 l (59.33 cu. ft.) |
| Fuel tank capacity | 73 l (19.28 US gal | 16.06 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%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 85 kg (187.39 lbs.) |
| Length | 4943 mm (194.61 in.) |
| Width | 1874 mm (73.78 in.) |
| Width including mirrors | 2086 mm (82.13 in.) |
| Height | 1461-1482 mm (57.52 – 58.35 in.) |
| Wheelbase | 2912 mm (114.65 in.) |
| Front track | 1627 mm (64.06 in.) |
| Rear (Back) track | 1618 mm (63.7 in.) |
| Front overhang | 930 mm (36.61 in.) |
| Rear overhang | 1101 mm (43.35 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle (turning diameter) | 11.9 m (39.04 ft.) |
| 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 on trapezoidal lever |
| 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 | 225/55 R17 |
| Wheel rims size | 8J x 17 |
Powertrain & Engine Architecture
The heart of the A6 Avant 2.0 TDI ultra is the 1968cc inline-four cylinder diesel engine, identified by engine codes CSUD or DDCB. This engine is a member of the Volkswagen Group’s modular engine family, known for its compact dimensions and efficiency. It utilizes a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A single turbocharger, coupled with an intercooler, provides forced induction, boosting power and torque. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, enhancing breathing and contributing to its power output. The high compression ratio of 16.2:1 is typical for diesel engines, maximizing thermal efficiency. The S tronic transmission is a seven-speed dual-clutch transmission (DCT). This transmission offers rapid, smooth gear changes and contributes to the car’s overall efficiency. It operates in both automatic and manual modes, allowing the driver to select gears via the gear selector or steering wheel-mounted paddles.
Driving Characteristics
The 150 hp output and 350 Nm (258 lb-ft) of torque provide adequate, though not exhilarating, performance. Acceleration from 0 to 62 mph takes approximately 9.9 seconds. The S tronic transmission helps to mask the engine’s limitations, providing quick shifts and keeping the engine within its optimal power band. Compared to the more powerful 3.0 TDI variants, the 2.0 TDI ultra feels noticeably less responsive, particularly during overtaking maneuvers. However, the engine delivers a broad torque curve, making it tractable and easy to drive in everyday conditions. The gear ratios in the S tronic transmission are tuned for fuel efficiency, resulting in a slightly higher cruising RPM compared to some other A6 configurations. The front-wheel-drive configuration contributes to a slight tendency for understeer during spirited driving.
Equipment & Trim Levels
The A6 Avant 2.0 TDI ultra typically came equipped with a generous level of standard features. These included Audi’s MMI infotainment system with a central display screen, tri-zone automatic climate control, leather upholstery, and front sports seats. Standard safety equipment included ABS, electronic stability control, and multiple airbags. Optional extras included features such as a navigation system, advanced driver assistance systems (adaptive cruise control, lane departure warning), a panoramic sunroof, and upgraded sound systems. Trim levels varied depending on the market, but generally offered progressively more luxurious appointments and technology features.
Chassis & Braking
The A6 Avant 2.0 TDI ultra utilizes an independent multi-link suspension at the front and an independent trapezoidal link suspension at the rear. This setup provides a comfortable ride quality and good handling characteristics. The front brakes are ventilated discs, while the rear brakes are solid discs. ABS (Anti-lock Braking System) is standard, enhancing braking performance and stability. The steering is electric power-assisted, providing a precise and responsive feel.
Market Reception & Comparison
The A6 Avant 2.0 TDI ultra was generally well-received by automotive critics for its fuel efficiency and refinement. It offered a compelling alternative to more powerful, but less economical, A6 variants. Compared to the 3.0 TDI models, the 2.0 TDI ultra provided significantly better fuel economy, but at the expense of performance. Against competitors like the BMW 5 Series Touring and Mercedes-Benz E-Class Estate, the A6 Avant 2.0 TDI ultra held its own in terms of practicality, comfort, and technology, often being praised for its interior quality and user-friendly infotainment system.
Legacy
The 2.0 TDI engine, in various iterations, has proven to be a reliable and durable powertrain. However, like many modern diesel engines, it is susceptible to issues related to the diesel particulate filter (DPF) if not properly maintained with regular long journeys. The S tronic transmission is generally reliable, but requires scheduled servicing to ensure smooth operation. In the used car market, the A6 Avant 2.0 TDI ultra represents a good value proposition for buyers seeking a practical, comfortable, and fuel-efficient executive wagon. Its relatively lower purchase price compared to higher-spec models makes it an attractive option for those prioritizing economy and everyday usability.
