The Audi A4 (B6), produced between 2001 and 2005, represented a significant evolution for Audi’s popular compact executive car. The 2.4i V6 30V variant, available from 2001-2004, occupied a mid-range position within the B6 lineup, offering a balance of performance and refinement. It was positioned above the 1.8T models and below the performance-oriented S4, appealing to buyers seeking a more spirited driving experience than the base engines provided, without the higher price tag of the S4. This model was primarily sold in Europe and North America, contributing to the A4’s growing reputation as a sophisticated and capable all-around vehicle.
Technical Specifications
| Brand | Audi |
| Model | A4 |
| Generation | A4 (B6 8E) |
| Type (Engine) | 2.4i V6 30V (170 Hp) |
| Start of production | 2001 |
| End of production | 2004 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 13.6 l/100 km (17.3 US mpg, 20.8 UK mpg) |
| Fuel consumption (extra urban) | 7.2 l/100 km (32.7 US mpg, 39.2 UK mpg) |
| Fuel consumption (combined) | 9.5 l/100 km (24.8 US mpg, 29.7 UK mpg) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.8 sec |
| Acceleration 0 – 62 mph | 8.8 sec |
| Acceleration 0 – 60 mph | 8.4 sec |
| Maximum speed | 226 km/h (140.43 mph) |
| Weight-to-power ratio | 8.4 kg/Hp |
| Weight-to-torque ratio | 6.2 kg/Nm |
| 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 capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Kerb Weight | 1430 kg (3152.61 lbs.) |
| Max. weight | 1980 kg (4365.15 lbs.) |
| Max load | 550 kg (1212.54 lbs.) |
| Trunk (boot) space – minimum | 445 l (15.72 cu. ft.) |
| Trunk (boot) space – maximum | 720 l (25.43 cu. ft.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Length | 4548 mm (179.06 in.) |
| Width | 1772 mm (69.76 in.) |
| Height | 1428 mm (56.22 in.) |
| Wheelbase | 2650 mm (104.33 in.) |
| Front track | 1528 mm (60.16 in.) |
| Rear track | 1526 mm (60.08 in.) |
| Drag coefficient (Cd) | 0.31 |
| Minimum turning circle | 11.1 m (36.42 ft.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears | 5 |
| Gearbox type | Manual transmission |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| 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 | 16 |
Powertrain & Engine Architecture
The heart of the 2.4i variant is the BDV engine, a 2.4-liter naturally aspirated V6. This engine utilizes a 30-valve (5 valves per cylinder) dual overhead camshaft (DOHC) configuration, contributing to its relatively high specific output. Fuel delivery is managed by a multi-port fuel injection system, providing precise fuel metering for optimal combustion. The engine’s 60-degree V-angle helps to balance the engine and reduce vibrations. The 2393cc displacement, combined with a 10.5:1 compression ratio, allowed for a respectable 170 horsepower and 230 Nm (169.64 lb-ft) of torque. The engine is longitudinally mounted, driving the front wheels through a 5-speed manual transmission. While an automatic transmission was available, the manual was favored by enthusiasts for its more engaging driving experience.
Driving Characteristics
The 2.4i V6 offered a noticeable step up in performance compared to the 1.8T models. Acceleration to 60 mph took approximately 8.4 seconds, and it could reach a top speed of 140 mph. The engine delivered a smooth and linear power delivery, with peak torque available at 3200 rpm. The 5-speed manual transmission provided well-spaced gear ratios, allowing the driver to keep the engine in its optimal power band. While not a sports car, the 2.4i offered a refined and enjoyable driving experience, particularly on open roads. Compared to the higher-output S4, the 2.4i felt less urgent, but it offered a better balance of performance and fuel economy.
Equipment & Trim Levels
The 2.4i V6 typically came equipped with a generous level of standard features, including power windows, power locks, and air conditioning. Higher trim levels added features such as leather upholstery, sunroof, premium audio systems, and automatic climate control. Alloy wheels were standard, typically in a 16-inch size. Optional extras included navigation systems, heated seats, and xenon headlights. The interior design was typical of Audi at the time, characterized by a clean and functional layout with high-quality materials.
Chassis & Braking
The B6 A4 featured fully independent multi-link suspension at both the front and rear, providing a comfortable ride and precise handling. The front suspension utilized coil springs and shock absorbers, while the rear suspension incorporated a separate spring and damper arrangement. The 2.4i models were equipped with ventilated disc brakes at the front and solid disc brakes at the rear. Anti-lock braking system (ABS) was standard, enhancing braking performance and stability. The steering was a rack-and-pinion system with hydraulic power assistance, providing responsive and accurate steering feel.
Market Reception & Comparison
The 2.4i V6 A4 was generally well-received by automotive critics. It was praised for its smooth engine, refined ride, and well-appointed interior. However, some critics noted that the engine lacked the outright punch of some of its competitors. Fuel economy was considered reasonable for a V6 engine, averaging around 24.8 US mpg in combined driving. Compared to the 1.8T models, the 2.4i offered significantly more performance, but at the cost of slightly higher fuel consumption. The 2.4i also proved to be more reliable than some of the earlier turbocharged Audi engines.
Legacy
The B6 A4 2.4i V6 has developed a reputation as a reliable and durable vehicle. The BDV engine is known for its longevity, provided it is properly maintained. Today, these cars can be found on the used car market at relatively affordable prices. They appeal to buyers seeking a comfortable, well-built, and relatively sporty sedan. While not as sought-after as the S4, the 2.4i V6 offers a compelling combination of performance, refinement, and value, making it a worthy contender in the used car market.
