The Audi A8 L (D3, 4E) 4.2i V8 quattro Tiptronic represents a significant iteration of Audi’s flagship luxury sedan, produced between 2002 and 2005. Positioned as a high-performance variant within the D3/4E A8 range, it offered a blend of opulent comfort, advanced technology, and robust power. This long-wheelbase (L) version prioritized rear passenger space, catering to those seeking a chauffeur-driven experience or simply a more spacious interior. It was a key model in establishing Audi’s reputation for sophisticated engineering and design in the full-size luxury segment, competing directly with the BMW 7 Series and Mercedes-Benz S-Class.
Technical Specifications
| Brand | Audi |
| Model | A8 |
| Generation | A8L (D3, 4E) |
| Type (Engine) | 4.2i V8 (335 Hp) quattro Tiptronic |
| Start of production | 2002 |
| End of production | 2005 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban | 17.5 l/100 km (13.4 US mpg, 16.1 UK mpg, 5.7 km/l) |
| Fuel consumption (economy) – extra urban | 8.7 l/100 km (27 US mpg, 32.5 UK mpg, 11.5 km/l) |
| Fuel consumption (economy) – combined | 11.9 l/100 km (19.8 US mpg, 23.7 UK mpg, 8.4 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.4 sec |
| Acceleration 0 – 62 mph | 6.4 sec |
| Acceleration 0 – 60 mph | 6.1 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 5.5 kg/Hp, 182.6 Hp/tonne |
| Weight-to-torque ratio | 4.3 kg/Nm, 234.3 Nm/tonne |
| Power | 335 Hp @ 6500 rpm |
| Power per litre | 80.3 Hp/l |
| Torque | 430 Nm @ 3500 rpm (317.15 lb.-ft. @ 3500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | BFM |
| Engine displacement | 4172 cm3 (254.59 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 84.5 mm (3.33 in.) |
| Piston Stroke | 93 mm (3.66 in.) |
| Compression ratio | 11.1:1 |
| Number of valves per cylinder | 5 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Coolant | 11.5 l (12.15 US qt | 10.12 UK qt) |
| Kerb Weight | 1835 kg (4045.48 lbs.) |
| Max. weight | 2435 kg (5368.26 lbs.) |
| Max load | 600 kg (1322.77 lbs.) |
| Trunk (boot) space – minimum | 500 l (17.66 cu. ft.) |
| Fuel tank capacity | 90 l (23.78 US gal | 19.8 UK gal) |
| Length | 5181 mm (203.98 in.) |
| Width | 1894 mm (74.57 in.) |
| Height | 1455 mm (57.28 in.) |
| Wheelbase | 3074 mm (121.02 in.) |
| Front track | 1619 mm (63.74 in.) |
| Rear (Back) track | 1605 mm (63.19 in.) |
| Drag coefficient (Cd) | 0.27 |
| Minimum turning circle (turning diameter) | 12.5 m (41.01 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, automatic transmission Tiptronic |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent on trapezoidal lever |
| 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 | 235/55 R17 |
| Wheel rims size | 17 |
Powertrain & Engine Architecture
At the heart of the A8 L 4.2i quattro Tiptronic lies the BFM engine, a 4.2-liter naturally aspirated V8. This engine, part of Audi’s longstanding V8 family, features an aluminum alloy block and cylinder heads, contributing to a relatively lightweight construction. It utilizes a multi-port fuel injection system, delivering fuel directly into the intake ports, and boasts five valves per cylinder (four intake, one exhaust) for optimized breathing. The engine produces 335 horsepower at 6500 rpm and 317 lb-ft of torque at 3500 rpm. The ‘Tiptronic’ transmission is a six-speed automatic gearbox offering both fully automatic operation and a manual shift mode, allowing drivers to exert more control over gear selection. This transmission was known for its smooth shifts and responsiveness, though it wasn’t as quick as some dual-clutch transmissions that emerged later.
Driving Characteristics
The 4.2i V8 with the Tiptronic transmission delivered a refined and powerful driving experience. Acceleration from 0-60 mph took approximately 6.1 seconds, making it a genuinely quick luxury sedan for its time. The Tiptronic transmission, while smooth, did introduce a slight loss of efficiency compared to a manual transmission. The quattro all-wheel-drive system provided excellent traction in all weather conditions, enhancing stability and confidence. Compared to the 3.0L V6 models, the 4.2i offered significantly more power and a more effortless cruising experience. However, it lacked the fuel efficiency of the TDI diesel variants, which were popular in Europe.
Equipment & Trim Levels
The A8 L 4.2i quattro Tiptronic was typically well-equipped, reflecting its position as a premium model. Standard features included leather upholstery, power-adjustable heated front seats, a premium audio system, automatic climate control, and a sunroof. Optional extras included rear seat entertainment, massaging seats, adaptive cruise control, and a more advanced navigation system. The long-wheelbase configuration provided generous rear legroom, making it particularly appealing to passengers. Interior trim options included various wood veneers and aluminum accents, allowing buyers to personalize the cabin to their taste.
Chassis & Braking
The A8 L featured an independent multi-link suspension system at all four corners, providing a comfortable and controlled ride. The suspension was tuned to prioritize comfort, but still offered good handling characteristics. Braking duties were handled by ventilated disc brakes on all four wheels, coupled with an Anti-lock Braking System (ABS) for enhanced safety. The quattro all-wheel-drive system distributed power between the front and rear axles as needed, optimizing traction and stability. The steering was a hydraulic rack-and-pinion system, providing precise and responsive steering feel.
Market Reception & Comparison
The A8 L 4.2i quattro Tiptronic was generally well-received by automotive critics. It was praised for its powerful engine, luxurious interior, and advanced technology. However, some critics noted its relatively high fuel consumption compared to its competitors. Compared to the 3.0L V6 A8, the 4.2i offered a significant performance upgrade, but at a higher price point. The TDI diesel models were favored by those prioritizing fuel economy, while the 4.2i appealed to buyers seeking maximum power and refinement.
Legacy
The Audi A8 L (D3, 4E) 4.2i V8 quattro Tiptronic remains a desirable used luxury car. The BFM engine, while not without its maintenance requirements, is generally considered reliable when properly maintained. Common issues include oil leaks and occasional problems with the timing chain tensioners. The Tiptronic transmission, while robust, can require servicing over time. Today, these cars offer a compelling combination of luxury, performance, and value, appealing to enthusiasts and those seeking a comfortable and capable grand tourer. Its advanced features and sophisticated engineering continue to hold up well, making it a testament to Audi’s commitment to innovation.
