The Audi A8 L (D2) with the 6.0 W12 engine, produced from 2000 to 2002, represented the pinnacle of engineering and luxury for the second-generation A8 flagship sedan. This facelifted version of the D2 platform, internally designated 4D, offered a unique blend of performance, technology, and refinement. Positioned as the ultimate expression of the A8 range, the W12 model aimed to compete directly with the Mercedes-Benz S-Class and BMW 7 Series, particularly in markets where large, powerful luxury sedans were highly sought after. The “L” designation indicated a long-wheelbase version, prioritizing rear passenger space and comfort. This variant was primarily sold in Europe and North America, catering to buyers who desired a statement vehicle with uncompromising performance.
Technical Specifications
| Brand | Audi |
| Model | A8 |
| Generation | A8L (D2, 4D, facelift 1999) |
| Type (Engine) | 6.0 W12 (420 Hp) quattro tiptronic |
| Start of production | 2000 year |
| End of production | 2002 year |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 4-5 |
| Doors | 4 |
| Fuel consumption (economy) – urban (NEDC) | 22.9 l/100 km (10.3 US mpg, 12.3 UK mpg, 4.4 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 9.8 l/100 km (24 US mpg, 28.8 UK mpg, 10.2 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 14.6 l/100 km (16.1 US mpg, 19.3 UK mpg, 6.8 km/l) |
| CO2 emissions (NEDC) | 350 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.6 sec |
| Acceleration 0 – 62 mph | 5.6 sec |
| Acceleration 0 – 60 mph | 5.3 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 4.7 kg/Hp, 212.1 Hp/tonne |
| Weight-to-torque ratio | 3.6 kg/Nm, 277.8 Nm/tonne |
| Power | 420 Hp @ 6000 rpm |
| Power per litre | 70 Hp/l |
| Torque | 550 Nm @ 3500-4750 rpm (405.66 lb.-ft. @ 3500-4750 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | AZC |
| Engine displacement | 5998 cm3 (366.02 cu. in.) |
| Number of cylinders | 12 |
| Engine configuration | W-engine |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 90.3 mm (3.56 in.) |
| Compression ratio | 10.75:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 10.5 l (11.1 US qt | 9.24 UK qt) |
| Coolant | 12 l (12.68 US qt | 10.56 UK qt) |
| Kerb Weight | 1980 kg (4365.15 lbs.) |
| Max. weight | 2530 kg (5577.7 lbs.) |
| Max load | 550 kg (1212.54 lbs.) |
| Trunk (boot) space – minimum | 525 l (18.54 cu. ft.) |
| Fuel tank capacity | 92 l (24.3 US gal | 20.24 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Length | 5164 mm (203.31 in.) |
| Width | 1880 mm (74.02 in.) |
| Width including mirrors | 1973 mm (77.68 in.) |
| Height | 1438 mm (56.61 in.) |
| Wheelbase | 3010 mm (118.5 in.) |
| Front track | 1595 mm (62.8 in.) |
| Rear (Back) track | 1586 mm (62.44 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle (turning diameter) | 12.7 m (41.67 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 | 245/45 R18 |
| Wheel rims size | 18 |
Powertrain & Engine Architecture
The heart of the A8 L 6.0 W12 is the AZC engine, a 6.0-liter naturally aspirated W12 powerplant. This engine is essentially two narrow-angle VR6 engines joined at a common crankshaft, resulting in a compact and smooth-running configuration. The engine utilizes multi-port fuel injection and a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. The W12 produces 420 horsepower at 6000 rpm and a substantial 550 Nm (405.66 lb-ft) of torque between 3500 and 4750 rpm. This power is delivered to all four wheels via Audi’s quattro permanent all-wheel-drive system and a five-speed tiptronic automatic transmission. The tiptronic transmission allows for both fully automatic operation and driver-selectable manual gear changes.
Driving Characteristics
The A8 L W12 offered a unique driving experience. While its size and weight (approximately 1980 kg or 4365 lbs) were considerable, the powerful W12 engine provided effortless acceleration. The 0-60 mph sprint took around 5.3 seconds, and the car was electronically limited to a top speed of 250 km/h (155 mph). The tiptronic transmission, while smooth, wasn’t as quick-shifting as some contemporary automatic gearboxes. Compared to the 2.8L V6 or 3.0L V6 variants, the W12 offered a significantly more powerful and refined experience. The W12’s torque delivery was linear and predictable, making it ideal for high-speed cruising. However, the increased weight and complexity of the W12 powertrain did impact fuel economy, with combined fuel consumption averaging around 14.6 l/100 km (16.1 US mpg).
Equipment & Trim Levels
The A8 L W12 came standard with a comprehensive list of luxury features. Interior appointments included premium leather upholstery, wood trim, and power-adjustable heated front and rear seats. Standard equipment also included a Bose sound system, automatic climate control, and a sunroof. Optional extras included a rear-seat entertainment system, massaging seats, and a more advanced navigation system. The long-wheelbase configuration provided ample rear legroom, enhancing the comfort for passengers. The exterior featured unique W12 badging and larger alloy wheels to distinguish it from other A8 models.
Chassis & Braking
The A8 L W12 utilized an independent multi-link suspension system at all four corners, providing a comfortable and controlled ride. Stabilizer bars were fitted front and rear to reduce body roll during cornering. Braking duties were handled by ventilated disc brakes on all four wheels, coupled with an Anti-lock Braking System (ABS). The suspension was tuned to prioritize comfort and stability, rather than outright sportiness. The quattro all-wheel-drive system provided excellent traction in all weather conditions.
Market Reception & Comparison
The A8 L W12 was generally well-received by automotive critics, who praised its powerful engine, luxurious interior, and refined driving experience. However, its high price tag and relatively poor fuel economy were noted as drawbacks. Compared to the V6 models, the W12 offered a significant performance upgrade but came at a substantial cost premium. Reliability was generally good, although the complexity of the W12 engine and its associated systems meant that maintenance costs could be higher.
Legacy
Today, the Audi A8 L 6.0 W12 is a relatively rare and sought-after classic. The W12 engine, while complex, has proven to be reasonably durable with proper maintenance. Finding well-maintained examples can be challenging, and repair costs can be significant due to the specialized nature of the engine and its components. However, for enthusiasts seeking a unique and powerful luxury sedan, the A8 L W12 remains a compelling option. Its combination of performance, luxury, and technological innovation continues to make it a standout vehicle from the early 2000s.
