The Audi A6 Avant (4B, C5) facelift, produced from 2001 to 2004, represented a significant evolution of Audi’s mid-size executive wagon. The 2.4 V6 variant, equipped with the Multitronic continuously variable transmission (CVT), occupied a middle ground in the A6 Avant lineup, offering a balance between performance, refinement, and fuel efficiency. This model aimed to appeal to buyers seeking a practical yet sophisticated vehicle for family use and long-distance travel. It was positioned above the entry-level 1.8T models and below the more powerful 3.0 V6 and S6 variants.
Technical Specifications
| Brand | Audi |
| Model | A6 |
| Generation | A6 Avant (4B,C5, facelift 2001) |
| Type (Engine) | 2.4 V6 (170 Hp) Multitronic |
| Start of production | 2001 |
| End of production | 2004 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 14.3 l/100 km (16.4 US mpg, 19.8 UK mpg, 7 km/l) |
| Fuel consumption (extra urban) | 7.1 l/100 km (33.1 US mpg, 39.8 UK mpg, 14.1 km/l) |
| Fuel consumption (combined) | 9.7 l/100 km (24.2 US mpg, 29.1 UK mpg, 10.3 km/l) |
| CO2 emissions | 233 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 9.6 sec |
| Acceleration 0 – 62 mph | 9.6 sec |
| Acceleration 0 – 60 mph | 9.1 sec |
| Maximum speed | 218 km/h (135.46 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 9.2 kg/Hp, 108.3 Hp/tonne |
| Weight-to-torque ratio | 6.8 kg/Nm, 146.5 Nm/tonne |
| Power | 170 Hp @ 6000 rpm |
| Power per litre | 71 Hp/l |
| Torque | 230 Nm @ 3200 rpm (169.64 lb.-ft. @ 3200 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | BDV |
| Engine displacement | 2393 cm3 (146.03 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 81 mm (3.19 in.) |
| Piston Stroke | 77.4 mm (3.05 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 5 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 6 l (6.34 US qt | 5.28 UK qt) |
| Coolant | 6 l (6.34 US qt | 5.28 UK qt) |
| Kerb Weight | 1570 kg (3461.26 lbs.) |
| Max. weight | 2120 kg (4673.8 lbs.) |
| Max load | 550 kg (1212.54 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%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load with brakes (12%) | 1700 kg (3747.86 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 | 1477 mm (58.15 in.) |
| Wheelbase | 2760 mm (108.66 in.) |
| Front track | 1540 mm (60.63 in.) |
| Rear (Back) track | 1569 mm (61.77 in.) |
| Drag coefficient (Cd) | 0.32 |
| Minimum turning circle | 11.68 m (38.32 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 | 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 | 205/55 R16 |
| Wheel rims size | 7J x 16 |
INTRODUCTION
The Audi A6 Avant (4B, C5) facelift, launched in 2001, built upon the success of the original C5 platform introduced in 1997. This refresh brought updated styling, improved interior materials, and advancements in engine technology. The 2.4 V6 Multitronic variant was a key offering, providing a compelling alternative to the more common 1.8T engine. It catered to buyers who desired a more refined driving experience and stronger acceleration without the added cost of the larger V8 engines. The Avant body style, Audi’s designation for a station wagon, was particularly popular in Europe, offering a blend of practicality and premium appeal.
Powertrain & Engine Architecture
The heart of the A6 2.4 V6 Multitronic is the BDV engine, a 2.4-liter naturally aspirated V6. This engine utilizes a 60-degree V-angle configuration for optimal balance and smoothness. It features a dual overhead camshaft (DOHC) design with five valves per cylinder (three intake, two exhaust), enhancing volumetric efficiency. Fuel delivery is managed by a multi-port fuel injection system. The engine produces 170 horsepower at 6000 rpm and 230 Nm (169.64 lb-ft) of torque at 3200 rpm.
The Multitronic transmission is a continuously variable transmission (CVT) that differs significantly from traditional automatic gearboxes. It uses a chain-driven system with a steel pushbelt running between two pulley halves. By varying the diameter of these pulleys, the transmission can seamlessly adjust the gear ratio, providing smooth and efficient power delivery. The Multitronic offered drivers the option of fully automatic operation or manual gear selection via the shift lever or steering wheel-mounted paddles.
Driving Characteristics
The 2.4 V6 Multitronic A6 Avant offered a refined and comfortable driving experience. The Multitronic transmission contributed to smooth acceleration and eliminated the shift shocks associated with conventional automatics. While not as overtly sporty as the manual transmission versions or the higher-output models, the 2.4 V6 provided adequate power for everyday driving and highway cruising. The CVT’s ability to keep the engine in its optimal power band resulted in responsive performance. However, some drivers noted a slight disconnect between engine speed and perceived acceleration, a common characteristic of CVTs. The front-wheel-drive configuration provided good traction in most conditions, but could exhibit some torque steer under hard acceleration.
Equipment & Trim Levels
The A6 Avant 2.4 V6 Multitronic typically came well-equipped, reflecting Audi’s premium positioning. Standard features included automatic climate control, power windows and mirrors, a multi-function steering wheel, and a single-disc CD stereo. Upholstery was typically cloth, with leather options available. Optional extras included a sunroof, upgraded audio systems, navigation, heated seats, and parking sensors. Trim levels varied slightly depending on the market, but generally offered a range of cosmetic and convenience upgrades.
Chassis & Braking
The A6 Avant featured an independent multi-link front suspension, providing excellent ride comfort and handling. The rear suspension utilized a semi-independent coil spring setup. The 2.4 V6 models were equipped with ventilated disc brakes at the front and solid disc brakes at the rear. Anti-lock braking system (ABS) was standard. The chassis was designed to provide a balance between comfort and stability, offering a composed ride even when fully loaded.
Market Reception & Comparison
The A6 Avant 2.4 V6 Multitronic was generally well-received by automotive critics. It was praised for its refined engine, smooth transmission, and spacious interior. However, some reviewers noted that the Multitronic transmission could feel less engaging than a traditional manual gearbox. Compared to the 1.8T models, the 2.4 V6 offered noticeably stronger acceleration and a more premium feel. Fuel economy was comparable to the 1.8T, but the 2.4 V6 required premium fuel. Reliability of the Multitronic transmission was a concern for some owners, with potential for issues related to the chain and control unit.
Legacy
The Audi A6 Avant (4B, C5) 2.4 V6 Multitronic remains a popular choice in the used car market, particularly for those seeking a practical and refined wagon. The BDV engine is generally considered reliable, although regular maintenance is essential. The Multitronic transmission requires careful attention and adherence to recommended service intervals. While not as common as the 1.8T models, the 2.4 V6 Avant offers a compelling combination of performance, comfort, and practicality, making it a desirable option for discerning buyers.
