The Audi A6 Allroad quattro, specifically the 2.7 TDI V6 (190 hp) variant with the Tiptronic automatic transmission, represents a compelling blend of luxury, practicality, and all-weather capability. Produced from September 2008 to 2011 as part of the C6 facelift generation (4F), this model occupied a unique niche within the A6 lineup, bridging the gap between a traditional executive wagon and a more rugged, crossover-style vehicle. It was primarily marketed in Europe, where the demand for such vehicles was – and remains – strong, offering a sophisticated alternative to dedicated SUVs.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Allroad quattro (4F,C6 facelift 2008) |
| Type (Engine) | 2.7 TDI V6 (190 Hp) quattro Tiptronic |
| Start of production | September, 2008 |
| End of production | 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate), Crossover |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 9.9 l/100 km (23.8 US mpg, 28.5 UK mpg, 10.1 km/l) |
| Fuel consumption (extra urban) | 6.2 l/100 km (37.9 US mpg, 45.6 UK mpg, 16.1 km/l) |
| Fuel consumption (combined) | 7.5 l/100 km (31.4 US mpg, 37.7 UK mpg, 13.3 km/l) |
| CO2 emissions | 199 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 8.8 sec |
| Acceleration 0 – 62 mph | 8.8 sec |
| Acceleration 0 – 60 mph | 8.4 sec |
| Maximum speed | 218 km/h (135.46 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 9.8 kg/Hp, 101.6 Hp/tonne |
| Weight-to-torque ratio | 4.2 kg/Nm, 240.6 Nm/tonne |
| Power | 190 Hp @ 3500-4400 rpm |
| Power per litre | 70.4 Hp/l |
| Torque | 450 Nm @ 1750-2250 rpm (331.9 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) |
| Coolant | 9.7 l (10.25 US qt | 8.53 UK qt) |
| Kerb Weight | 1870 kg (4122.64 lbs.) |
| Max. weight | 2500 kg (5511.56 lbs.) |
| Max load | 630 kg (1388.91 lbs.) |
| Trunk (boot) space – minimum | 565 l (19.95 cu. ft.) |
| Trunk (boot) space – maximum | 1660 l (58.62 cu. ft.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (8%) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load with brakes (12%) | 1900 kg (4188.78 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 85 kg (187.39 lbs.) |
| Length | 4934 mm (194.25 in.) |
| Width | 1862 mm (73.31 in.) |
| Height | 1521 mm (59.88 in.) |
| Wheelbase | 2833 mm (111.54 in.) |
| Front track | 1596 mm (62.83 in.) |
| Rear (Back) track | 1587 mm (62.48 in.) |
| Drag coefficient (Cd) | 0.33 |
| 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 | 6 gears, automatic transmission Tiptronic |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent on trapezoidal lever |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 225/55 R17 |
| Wheel rims size | 7.5J x 17 |
INTRODUCTION
The Audi A6 Allroad quattro 2.7 TDI, introduced during the facelift of the C6 generation, built upon the already successful A6 Avant (wagon) platform. Audi’s ‘Allroad’ designation signified a commitment to enhanced off-road capability without sacrificing the luxury and refinement expected of the A6. The 2008 facelift brought styling updates, improved efficiency, and refinements to the interior. This particular variant, powered by the 2.7-liter TDI V6 engine and paired with a six-speed Tiptronic automatic transmission, was positioned as a mid-range offering, providing a balance between performance, fuel economy, and price. It sat below the more powerful 3.0 TDI and 4.2 TDI models, and above the entry-level 2.0 TDI.
Powertrain & Engine Architecture
The heart of this Allroad is the 2.7-liter (2698cc) V6 diesel engine, identified by engine codes CANA or CANC depending on specific production dates and market. This engine utilizes a common rail direct injection system, delivering fuel at extremely high pressure for optimized combustion. The engine features a single turbocharger with an intercooler, boosting power and torque. The valvetrain employs double overhead camshafts (DOHC) with four valves per cylinder. The Tiptronic six-speed automatic transmission offers both fully automatic operation and manual gear selection via steering wheel-mounted paddles or the gear selector. This transmission is known for its smooth shifts and responsiveness, although it can sometimes feel less engaging than a manual gearbox. The quattro all-wheel-drive system, a hallmark of Audi, distributes power between the front and rear axles as needed, providing excellent traction in all conditions.
Driving Characteristics
The 190 hp and 450 Nm (331.9 lb-ft) of torque produced by the 2.7 TDI engine provide adequate performance for everyday driving and long-distance cruising. While not as overtly sporty as the higher-powered variants, the 2.7 TDI offers a relaxed and refined driving experience. Acceleration from 0-100 km/h (0-62 mph) takes approximately 8.8 seconds. The Tiptronic transmission’s gear ratios are tuned for fuel efficiency and smooth cruising, rather than outright acceleration. Compared to the manual transmission versions, the Tiptronic offers convenience but sacrifices some driver involvement. The Allroad’s raised suspension and all-wheel-drive system provide a comfortable ride and confident handling on both paved and unpaved surfaces.
Equipment & Trim Levels
The A6 Allroad quattro 2.7 TDI typically came well-equipped as standard. Features included leather upholstery, automatic climate control, a multi-function steering wheel, and an Audi Concert audio system. The Allroad also featured unique exterior styling cues, such as flared wheel arches, stainless steel underbody protection, and roof rails. Optional extras included a navigation system, advanced parking sensors, heated seats, and a panoramic sunroof. Interior trim options varied, with choices in wood or aluminum accents.
Chassis & Braking
The A6 Allroad quattro features an independent suspension system on all four wheels. The front suspension utilizes a multi-link setup, while the rear employs a trapezoidal link design. This configuration provides a comfortable ride and good handling characteristics. The Allroad’s suspension is raised compared to the standard A6 Avant, providing increased ground clearance for off-road use. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. An Anti-lock Braking System (ABS) is standard, enhancing safety and stability.
Market Reception & Comparison
The A6 Allroad quattro 2.7 TDI was generally well-received by automotive critics. It was praised for its comfortable ride, spacious interior, and all-weather capability. The 2.7 TDI engine was considered a good compromise between performance and fuel economy. Compared to the 2.0 TDI, the 2.7 TDI offered significantly more power and torque, resulting in a more relaxed driving experience. However, it was less fuel-efficient and more expensive to maintain. Compared to the 3.0 TDI, the 2.7 TDI offered a lower purchase price but lacked the extra performance and refinement of the larger engine.
Legacy
The Audi A6 Allroad quattro 2.7 TDI has proven to be a relatively reliable vehicle, although, like any diesel engine, it is susceptible to issues with the diesel particulate filter (DPF) and turbocharger if not properly maintained. The Tiptronic transmission, while generally robust, can require expensive repairs if it fails. Today, these vehicles are increasingly sought after by enthusiasts who appreciate their unique blend of luxury, practicality, and all-weather capability. Well-maintained examples command reasonable prices in the used car market, making them an attractive option for those seeking a versatile and refined wagon.
