The Audi A6 Avant (4G, C7) 3.0 TDI V6 quattro S tronic represents a compelling blend of performance, practicality, and technology within the C7 generation of Audi’s flagship executive wagon. Produced from 2011 to 2014, this variant occupied a significant position in the A6 Avant lineup, offering a step up in power and refinement compared to the lower-displacement engines, while remaining more accessible than the range-topping performance models. It was primarily marketed in Europe and other regions where wagons maintain substantial popularity, offering a sophisticated alternative to traditional SUVs.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Avant (4G, C7) |
| Type (Engine) | 3.0 TDI V6 (204 Hp) quattro S tronic |
| Start of production | 2011 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 6.7 l/100 km (35.1 US mpg, 42.2 UK mpg, 14.9 km/l) |
| Fuel consumption (extra urban) | 5 l/100 km (47 US mpg, 56.5 UK mpg, 20 km/l) |
| Fuel consumption (combined) | 5.7 l/100 km (41.3 US mpg, 49.6 UK mpg, 17.5 km/l) |
| CO2 emissions | 149 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.2 sec |
| Acceleration 0 – 62 mph | 7.2 sec |
| Acceleration 0 – 60 mph | 6.8 sec |
| Maximum speed | 230 km/h (142.92 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 9.1 kg/Hp, 109.4 Hp/tonne |
| Weight-to-torque ratio | 4.1 kg/Nm, 241.3 Nm/tonne |
| Power | 204 Hp @ 3250-4500 rpm |
| Power per litre | 68.8 Hp/l |
| Torque | 450 Nm @ 1250-3500 rpm (331.9 lb.-ft. @ 1250-3500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | CLAA, CLAB |
| Engine displacement | 2967 cm3 (181.06 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 91.4 mm (3.6 in.) |
| Compression ratio | 17:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 6.4 l (6.76 US qt | 5.63 UK qt) |
| Coolant | 11.5 l (12.15 US qt | 10.12 UK qt) |
| Kerb Weight | 1865 kg (4111.62 lbs.) |
| Max. weight | 2420 kg (5335.19 lbs.) |
| Max load | 555 kg (1223.57 lbs.) |
| Trunk (boot) space – minimum | 565 l (19.95 cu. ft.) |
| Trunk (boot) space – maximum | 1680 l (59.33 cu. ft.) |
| Fuel tank capacity | 65 l (17.17 US gal | 14.3 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 85 kg (187.39 lbs.) |
| Length | 4926 mm (193.94 in.) |
| Width | 1874 mm (73.78 in.) |
| Width including mirrors | 2086 mm (82.13 in.) |
| Height | 1468 mm (57.8 in.) |
| Wheelbase | 2912 mm (114.65 in.) |
| Front track | 1874 mm (73.78 in.) |
| Rear (Back) track | 1618 mm (63.7 in.) |
| Front overhang | 912 mm (35.91 in.) |
| Rear overhang | 1102 mm (43.39 in.) |
| Ride height (ground clearance) | 117 mm (4.61 in.) |
| Drag coefficient (Cd) | 0.26 |
| Minimum turning circle (turning diameter) | 11.9 m (39.04 ft.) |
| Drive wheel | All wheel drive (4×4) |
| 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 | 225/60 R16 |
| Wheel rims size | 7.5J x 16 |
Powertrain & Engine Architecture
At the heart of the A6 Avant 3.0 TDI quattro S tronic lies the CLAA or CLAB engine code, a 3.0-liter V6 turbodiesel. This engine is a member of Audi’s modular engine family, known for its robust construction and refined operation. The engine utilizes a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. The engine features a single turbocharger with an intercooler to manage intake air temperature, boosting efficiency and power output. The valvetrain employs double overhead camshafts (DOHC) with four valves per cylinder, contributing to efficient gas exchange. Paired with this engine is Audi’s 7-speed S tronic dual-clutch transmission. This transmission offers rapid, smooth shifts and contributes to the vehicle’s overall efficiency. The S tronic transmission allows for both fully automatic operation and manual gear selection via steering wheel-mounted paddles or the gear selector.
Driving Characteristics
The 204 horsepower and 450 Nm (331.9 lb-ft) of torque produced by the 3.0 TDI engine provide a comfortable and capable driving experience. Acceleration from 0 to 100 km/h (0-62 mph) takes approximately 7.2 seconds. While not a sports car, the engine delivers ample power for effortless highway cruising and confident overtaking. The S tronic transmission’s quick shifts enhance responsiveness. Compared to the base 1.8 TFSI or 2.0 TDI models, the 3.0 TDI offers significantly more power and torque, resulting in a more relaxed and refined driving experience, especially when fully loaded or towing. The quattro all-wheel-drive system provides excellent traction in all weather conditions, enhancing stability and control. 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.
Equipment & Trim Levels
The A6 Avant 3.0 TDI quattro S tronic typically came well-equipped as standard. Features included automatic climate control, a multi-function steering wheel, power-adjustable front seats, and an infotainment system with a color display. Upholstery was typically a high-quality cloth or leather combination. Optional extras included a navigation system, advanced driver-assistance systems (such as adaptive cruise control and lane departure warning), a panoramic sunroof, and upgraded sound systems. Trim levels varied by market, but generally, this engine configuration was positioned as a mid-to-high-range offering, bridging the gap between the entry-level models and the more expensive, performance-oriented S6 Avant.
Chassis & Braking
The A6 Avant features an independent suspension system on all four wheels, providing a comfortable ride and good handling characteristics. The front suspension utilizes a multi-link setup, while the rear employs a trapezoidal link design. Stabilizer bars are fitted to both axles to reduce body roll during cornering. Braking duties are handled by ventilated discs at the front and solid discs at the rear. The anti-lock braking system (ABS) and electronic stability control (ESC) are standard features, enhancing safety and control. The chassis is designed to accommodate the increased weight of the V6 engine and quattro drivetrain, providing a stable and planted feel.
Market Reception & Comparison
The A6 Avant 3.0 TDI quattro S tronic was generally well-received by automotive critics. It was praised for its refined engine, comfortable ride, spacious interior, and practical wagon body style. Fuel economy was considered good for a vehicle of its size and performance. Compared to the 2.0 TDI models, the 3.0 TDI offered a noticeable improvement in performance and refinement, justifying the higher price tag for many buyers. However, some critics noted that the ride could be slightly firm with the optional sport suspension. Reliability was generally good, although diesel particulate filter (DPF) issues could occur with infrequent long-distance driving.
Legacy
The Audi A6 Avant 3.0 TDI quattro S tronic remains a popular choice in the used car market. The 3.0 TDI engine is known for its durability and relatively low maintenance costs, provided it is properly maintained. The S tronic transmission is generally reliable, but regular servicing is essential. These vehicles offer a compelling combination of luxury, performance, and practicality, making them a desirable option for buyers seeking a sophisticated and capable executive wagon. The engine’s robust design and the availability of parts contribute to its continued appeal and longevity on the road.
