The Audi A6 Avant (4B, C5) 2.7 T V6 with the Tiptronic automatic transmission, produced between 1998 and 2000, represents a compelling blend of performance and practicality within the C5 A6 generation. Positioned as a mid-to-upper trim level, this variant offered a significant step up in power and refinement compared to the base 1.8L and 2.4L models, while remaining more accessible than the flagship 4.2L V8. The Avant, Audi’s designation for a station wagon (estate), was a popular body style in Europe, offering increased cargo capacity without sacrificing the A6’s sophisticated character. This particular configuration aimed to provide a comfortable and capable grand tourer, suitable for both long-distance journeys and everyday family use.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Avant (4B,C5) |
| Type (Engine) | 2.7 T V6 (230 Hp) Tiptronic |
| Start of production | 1998 |
| End of production | 2000 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 16.4 l/100 km (14.3 US mpg, 17.2 UK mpg, 6.1 km/l) |
| Fuel consumption (extra urban) | 7.9 l/100 km (29.8 US mpg, 35.8 UK mpg, 12.7 km/l) |
| Fuel consumption (combined) | 11 l/100 km (21.4 US mpg, 25.7 UK mpg, 9.1 km/l) |
| CO2 emissions | 264 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.5 sec |
| Acceleration 0 – 62 mph | 8.5 sec |
| Acceleration 0 – 60 mph | 8.1 sec |
| Maximum speed | 242 km/h (150.37 mph) |
| Weight-to-power ratio | 7 kg/Hp, 142 Hp/tonne |
| Weight-to-torque ratio | 5.2 kg/Nm, 191.4 Nm/tonne |
| Power | 230 Hp @ 5800 rpm |
| Power per litre | 86.1 Hp/l |
| Torque | 310 Nm @ 1700-4600 rpm (228.64 lb.-ft. @ 1700-4600 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | AJK, AZA |
| Engine displacement | 2671 cm3 (162.99 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 81 mm (3.19 in.) |
| Piston Stroke | 86.4 mm (3.4 in.) |
| Compression ratio | 9.3:1 |
| Number of valves per cylinder | 5 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Turbocharger |
| Valvetrain | DOHC |
| Engine oil capacity | 6 l (6.34 US qt | 5.28 UK qt) |
| Coolant capacity | 6 l (6.34 US qt | 5.28 UK qt) |
| Kerb Weight | 1620 kg (3571.49 lbs.) |
| Max. weight | 2200 kg (4850.17 lbs.) |
| Max load | 580 kg (1278.68 lbs.) |
| Trunk (boot) space – minimum | 455 l (16.07 cu. ft.) |
| Trunk (boot) space – maximum | 1590 l (56.15 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 | 4796 mm (188.82 in.) |
| Width | 1810 mm (71.26 in.) |
| Height | 1479 mm (58.23 in.) |
| Wheelbase | 2760 mm (108.66 in.) |
| Front track | 1540 mm (60.63 in.) |
| Rear track | 1569 mm (61.77 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle | 11.68 m (38.32 ft.) |
| Drivetrain | Front wheel drive |
| Number of gears and type of gearbox | 5 gears, automatic transmission Tiptronic |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Semi-independent, coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 205/60 R15 |
| Wheel rims size | 7J x 15 |
Powertrain & Engine Architecture
The heart of the A6 Avant 2.7 T is the AJK or AZA engine code, a 2.7-liter V6 engine featuring a single turbocharger. This engine is a member of Audi’s well-regarded V6 family, known for its smoothness and potential for modification. The 2.7T utilizes multi-port fuel injection, delivering fuel directly into the intake ports. The engine employs a double overhead camshaft (DOHC) valvetrain with five valves per cylinder (three intake, two exhaust), optimizing breathing and contributing to its power output. The turbocharger, an integral part of the design, provides a significant boost in power and torque. The Tiptronic transmission is a five-speed automatic with a manual shift mode, allowing drivers to exert more control over gear selection. This transmission was known for its smooth operation, but could be prone to issues with the torque converter over time.
Driving Characteristics
The 230 horsepower and 310 Nm (228.64 lb-ft) of torque delivered by the 2.7T engine, coupled with the Tiptronic transmission, provided a comfortable and capable driving experience. Acceleration from 0-60 mph took approximately 8.1 seconds, making it noticeably quicker than the base 1.8L models. The Tiptronic transmission, while offering convenience, didn’t provide the same level of responsiveness as a manual gearbox. Gear ratios were tuned for a balance between acceleration and fuel economy. In typical driving conditions, the transmission shifted smoothly and predictably. The turbocharger provided a noticeable surge of power in the mid-range, making overtaking maneuvers relatively effortless. Compared to the higher-output 2.7T bi-turbo models, this single-turbo version offered a more linear power delivery, but lacked the ultimate performance of its more potent sibling.
Equipment & Trim Levels
The A6 Avant 2.7 T typically came equipped with a generous array of standard features, including automatic climate control, power windows and locks, a premium audio system, and alloy wheels. Interior upholstery was typically cloth or leather, with wood or aluminum trim options available. Optional extras included a sunroof, navigation system, heated seats, and upgraded audio systems. The Avant also benefited from the practical advantages of a station wagon, with a spacious cargo area that could be expanded by folding down the rear seats. The trim level generally sat between the base A6 models and the more luxurious versions equipped with the 4.2L V8 engine.
Chassis & Braking
The C5 A6 Avant featured an independent multi-link front suspension, providing a comfortable ride and precise handling. The rear suspension was a semi-independent coil spring setup. Braking duties were handled by ventilated discs at the front and solid discs at the rear, equipped with ABS (Anti-lock Braking System) as standard. The suspension was tuned to provide a balance between comfort and handling, making it suitable for both long-distance cruising and spirited driving. Stabilizer bars were fitted front and rear to reduce body roll during cornering.
Market Reception & Comparison
The Audi A6 Avant 2.7 T V6 Tiptronic was generally well-received by automotive critics. It was praised for its refined engine, comfortable ride, and spacious interior. However, some critics noted that the Tiptronic transmission could feel slightly sluggish compared to a manual gearbox. Fuel economy was considered reasonable for a vehicle of its size and performance, but not exceptional. Compared to the 1.8L and 2.4L A6 Avant models, the 2.7T offered a significant performance upgrade, but at a higher price point. Compared to the 4.2L V8 models, it provided a more balanced combination of performance and fuel economy.
Legacy
The 2.7T V6 engine, in both single-turbo and bi-turbo configurations, has developed a strong following among Audi enthusiasts. While generally reliable, the engine can be susceptible to issues with the turbocharger, cooling system, and timing chain tensioners if not properly maintained. The Tiptronic transmission, while smooth when functioning correctly, can be prone to failure over time, particularly if the transmission fluid has not been regularly changed. Today, well-maintained examples of the A6 Avant 2.7 T are sought after by enthusiasts who appreciate their blend of performance, practicality, and Audi’s signature refinement. The car represents a sweet spot in the C5 A6 lineup, offering a compelling combination of features and performance at a relatively affordable price on the used car market.
