The Audi A6 (4F, C6 facelift) 2.7 TDI V6 with the Multitronic transmission and Diesel Particulate Filter (DPF) represents a significant iteration of Audi’s mid-size executive car, produced from September 2008 to August 2011. This variant occupied a middle ground within the C6 facelift range, offering a balance between performance, fuel efficiency, and refinement. It built upon the foundation of the 4F platform (shared with the Volkswagen Passat and Škoda Superb) and aimed to provide a sophisticated driving experience for buyers seeking a diesel-powered luxury sedan. The facelift brought updated styling, improved technology, and refined engine options, solidifying the A6’s position in a competitive segment.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 (4F,C6 facelift 2008) |
| Type (Engine) | 2.7 TDI V6 (190 Hp) Multitronic DPF |
| Start of production | September, 2008 |
| End of production | August, 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 8 l/100 km (29.4 US mpg, 35.3 UK mpg, 12.5 km/l) |
| Fuel consumption (extra urban) | 5.5 l/100 km (42.8 US mpg, 51.4 UK mpg, 18.2 km/l) |
| Fuel consumption (combined) | 6.4 l/100 km (36.8 US mpg, 44.1 UK mpg, 15.6 km/l) |
| CO2 emissions | 169 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.9 sec |
| Acceleration 0 – 62 mph | 7.9 sec |
| Acceleration 0 – 60 mph | 7.5 sec |
| Maximum speed | 227 km/h (141.05 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 8.7 kg/Hp, 114.5 Hp/tonne |
| Weight-to-torque ratio | 4.2 kg/Nm, 241 Nm/tonne |
| Power | 190 Hp @ 3500 rpm |
| Power per litre | 70.4 Hp/l |
| Torque | 400 Nm @ 1750-2250 rpm (295.02 lb.-ft. @ 1750-2250 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | CANA, CANC |
| Engine displacement | 2698 cm3 (164.64 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 83.1 mm (3.27 in.) |
| Compression ratio | 16.8:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 8.2 l (8.66 US qt | 7.21 UK qt) |
| Kerb Weight | 1660 kg (3659.67 lbs.) |
| Max. weight | 2240 kg (4938.35 lbs.) |
| Max load | 580 kg (1278.68 lbs.) |
| Trunk (boot) space – maximum | 546 l (19.28 cu. ft.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (8%) | 1900 kg (4188.78 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 | 4927 mm (193.98 in.) |
| Width | 1855 mm (73.03 in.) |
| Width including mirrors | 2030 mm (79.92 in.) |
| Height | 1459 mm (57.44 in.) |
| Wheelbase | 2843 mm (111.93 in.) |
| Front track | 1612 mm (63.46 in.) |
| Rear (Back) track | 1618 mm (63.7 in.) |
| Front overhang | 994 mm (39.13 in.) |
| Rear overhang | 1090 mm (42.91 in.) |
| 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 | automatic transmission Multitronic |
| 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 |
| Tires size | 205/60 R16 |
| Wheel rims size | 7J x 16 |
Powertrain & Engine Architecture
The heart of this A6 variant is the 2.7-liter V6 TDI engine, specifically utilizing the CANA or CANC engine codes. This engine is a longitudinally mounted, turbocharged diesel featuring common rail direct injection. The common rail system, operating at extremely high pressures, allows for precise fuel metering and optimized combustion. The engine employs a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, enhancing volumetric efficiency. The turbocharger, coupled with an intercooler, forces more air into the cylinders, boosting power output. The Multitronic transmission is a continuously variable transmission (CVT) offering smooth, stepless gear changes. It utilizes a chain-driven pushbelt system, providing a wide range of gear ratios for optimal efficiency and performance. The DPF is a crucial component for meeting stringent Euro 5 emissions standards, trapping particulate matter from the exhaust gases.
Driving Characteristics
The 190 horsepower and 400 Nm (295 lb-ft) of torque delivered by the 2.7 TDI engine, combined with the Multitronic transmission, resulted in a comfortable and capable driving experience. Acceleration from 0-60 mph took approximately 7.5 to 7.9 seconds, making it adequately quick for everyday driving and highway overtaking. The Multitronic transmission, while smooth, lacked the direct feel of a traditional automatic or manual gearbox. Gear ratios were continuously adjusted to keep the engine within its optimal power band. Compared to the more powerful 3.0 TDI variants, this 2.7 TDI offered a more relaxed driving style, prioritizing fuel economy over outright performance. It also differed significantly from the petrol-powered A6 models, offering superior torque and fuel efficiency.
Equipment & Trim Levels
The 2.7 TDI Multitronic typically came equipped with a generous level of standard features. These included automatic climate control, a multi-function steering wheel, power-adjustable front seats, and an Audi Concert audio system. Higher trim levels, such as SE or S-line, added features like leather upholstery, upgraded audio systems (Bose or Bang & Olufsen), parking sensors, and xenon headlights. Optional extras included a sunroof, navigation system, and adaptive cruise control. Interior upholstery was often a combination of cloth and leather, with wood or aluminum trim accents available.
Chassis & Braking
The A6 4F featured an independent suspension system on all four wheels. The front suspension utilized a multi-link setup, while the rear employed a trapezoidal link design. This configuration provided a good balance between ride comfort and handling. Braking duties were handled by ventilated front discs and solid rear discs, equipped with ABS (Anti-lock Braking System). The suspension was tuned to provide a comfortable ride, but the weight of the engine and transmission could be felt during more spirited driving. Stabilizer bars were fitted to both the front and rear axles to reduce body roll.
Market Reception & Comparison
The Audi A6 2.7 TDI Multitronic was generally well-received by automotive critics. It was praised for its refined engine, comfortable ride, and fuel efficiency. However, some reviewers noted the lack of engagement from the Multitronic transmission and the relatively high price compared to competitors like the BMW 5 Series and Mercedes-Benz E-Class. Fuel economy was a strong point, consistently achieving around 36-44 mpg in real-world driving. Reliability was generally good, although the Multitronic transmission required regular servicing to prevent potential issues. Compared to the 3.0 TDI, the 2.7 TDI offered a more affordable entry point into the A6 range, appealing to buyers who prioritized economy over outright performance.
Legacy
The 2.7 TDI engine, in various iterations, proved to be a durable and reliable powerplant. However, the Multitronic transmission has a reputation for requiring meticulous maintenance. Regular fluid changes are crucial to prevent premature failure. Today, well-maintained examples of the A6 2.7 TDI are still relatively common on the used car market. They represent a good value proposition for buyers seeking a comfortable and fuel-efficient luxury sedan, but potential buyers should be aware of the potential maintenance costs associated with the Multitronic transmission and the DPF system. The engine’s robust design and the A6’s overall build quality contribute to its continued appeal.
