The Audi A8 (D2) 2.8 V6 30V quattro tiptronic, produced from 1998 to 2002, represents a significant iteration of Audi’s flagship luxury sedan. This variant, part of the facelifted D2 generation (internally designated 4D), occupied a middle ground in the A8 lineup, offering a balance between performance and affordability compared to the range-topping 4.2 V8 models. It was positioned as a more accessible entry point into the A8 experience, appealing to buyers who desired the prestige and technology of the A8 but didn’t require the outright power of the larger engine options. The 2.8 V6 model was a key component of Audi’s strategy to broaden the A8’s appeal in the North American and European markets.
Technical Specifications
| Brand | Audi |
| Model | A8 |
| Generation | A8 (D2, 4D, facelift 1998) |
| Type (Engine) | 2.8 V6 30V (193 Hp) quattro tiptronic |
| Start of production | 1998 |
| End of production | 2002 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban (NEDC) | 17.4 l/100 km (13.5 US mpg, 16.2 UK mpg, 5.7 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 8.4 l/100 km (28 US mpg, 33.6 UK mpg, 11.9 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 11.7 l/100 km (20.1 US mpg, 24.1 UK mpg, 8.5 km/l) |
| CO2 emissions (NEDC) | 281 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 10.1 sec |
| Acceleration 0 – 62 mph | 10.1 sec |
| Acceleration 0 – 60 mph | 9.6 sec |
| Maximum speed | 232 km/h (144.16 mph) |
| Emission standard | Euro 3 |
| Weight-to-power ratio | 8.6 kg/Hp, 116.3 Hp/tonne |
| Weight-to-torque ratio | 5.9 kg/Nm, 168.7 Nm/tonne |
| Power | 193 Hp @ 6000 rpm |
| Power per litre | 69.6 Hp/l |
| Torque | 280 Nm @ 3200 rpm (206.52 lb.-ft. @ 3200 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | ALG, AQD |
| Engine displacement | 2771 cm3 (169.1 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 82.5 mm (3.25 in.) |
| Piston Stroke | 86.4 mm (3.4 in.) |
| Compression ratio | 10.6:1 |
| Number of valves per cylinder | 5 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 5 l (5.28 US qt | 4.4 UK qt) |
| Coolant | 11 l (11.62 US qt | 9.68 UK qt) |
| Kerb Weight | 1660 kg (3659.67 lbs.) |
| Max. weight | 2260 kg (4982.45 lbs.) |
| Max load | 600 kg (1322.77 lbs.) |
| Trunk (boot) space – minimum | 525 l (18.54 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 | 95 kg (209.44 lbs.) |
| Length | 5034 mm (198.19 in.) |
| Width | 1880 mm (74.02 in.) |
| Width including mirrors | 1973 mm (77.68 in.) |
| Height | 1438 mm (56.61 in.) |
| Wheelbase | 2880 mm (113.39 in.) |
| Front track | 1597 mm (62.87 in.) |
| Rear (Back) track | 1586 mm (62.44 in.) |
| Front overhang | 1018 mm (40.08 in.) |
| Rear overhang | 1136 mm (44.72 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle (turning diameter) | 12.3 m (40.35 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 5 gears, automatic transmission tiptronic |
| Front suspension | Independent multi-link suspension, Transverse stabilizer |
| Rear suspension | Independent on trapezoidal lever, Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 225/60 R16 |
| Wheel rims size | 7J x 16 |
Powertrain & Engine Architecture
The heart of this A8 variant is the 2.8-liter V6 engine, specifically the ALG or AQD engine code depending on the exact production date and market. This engine is a naturally aspirated, 30-valve (five valves per cylinder) V6, utilizing a multi-port fuel injection system. The engine’s design emphasized smooth power delivery and refinement, rather than outright peak horsepower. The 60-degree V-angle contributes to a relatively compact engine layout. The tiptronic automatic transmission, a 5-speed unit, was a key feature. This transmission offered both fully automatic operation and the ability for the driver to manually select gears, providing a degree of driver involvement. The transmission’s programming was tuned for comfort and smooth shifts, prioritizing a relaxed driving experience.
Driving Characteristics
The 2.8 V6 tiptronic A8 offered a comfortable and refined driving experience. While not as quick as the V8 models, the 193 horsepower and 280 Nm (206 lb-ft) of torque provided adequate performance for most driving situations. Acceleration from 0-60 mph took around 9.6 seconds, and top speed was electronically limited to 144 mph. The tiptronic transmission, while smooth, did introduce a slight efficiency penalty compared to the manual transmission options available in other markets. The quattro all-wheel-drive system provided excellent traction in all weather conditions, enhancing stability and confidence. The gear ratios were optimized for cruising comfort, with a focus on minimizing engine revs at highway speeds.
Equipment & Trim Levels
The 2.8 V6 quattro tiptronic A8 typically came well-equipped, reflecting its status as a luxury vehicle. Standard features included leather upholstery, power-adjustable front seats with memory function, automatic climate control, a premium sound system, and a sunroof. Optional extras included upgraded leather packages, rear seat entertainment systems, and advanced driver-assistance features like parking sensors. The interior trim was generally executed with high-quality materials and a focus on understated elegance. The dashboard layout was clean and functional, with a central information display providing access to various vehicle settings and information.
Chassis & Braking
The A8 D2 featured an independent suspension system on all four wheels, utilizing a multi-link setup at the front and a trapezoidal link setup at the rear. This configuration provided a comfortable ride and good handling characteristics. Stabilizer bars were fitted front and rear to reduce body roll during cornering. The braking system consisted of ventilated disc brakes on all four wheels, coupled with an Anti-lock Braking System (ABS) for enhanced safety. The suspension tuning was geared towards providing a smooth and isolated ride, prioritizing comfort over sporty handling.
Market Reception & Comparison
The 2.8 V6 quattro tiptronic A8 was generally well-received by automotive critics. It was praised for its comfortable ride, refined interior, and advanced technology. However, some critics noted that the engine lacked the punch of the V8 models, and the tiptronic transmission wasn’t as engaging as a manual gearbox. Compared to the 4.2 V8 A8, the 2.8 offered better fuel economy (around 20 mpg combined) and a lower purchase price. Against competitors like the BMW 7 Series and Mercedes-Benz S-Class, the A8 offered a unique blend of technology, comfort, and all-wheel-drive capability.
Legacy
The Audi A8 (D2) 2.8 V6 quattro tiptronic has proven to be a relatively reliable vehicle, although age-related issues are common. The 2.8 V6 engine is generally considered durable, but timing belt replacement is crucial to prevent catastrophic engine failure. The tiptronic transmission can be prone to issues if not properly maintained. Today, these A8s are increasingly sought after by enthusiasts who appreciate their classic styling, luxurious features, and advanced technology for their time. Finding well-maintained examples is becoming more challenging, but the A8 D2 remains a compelling option for those seeking a comfortable and sophisticated luxury sedan.
