The Audi A8 L (D4, 4H) 2.5 FSI V6 tiptronic, produced from 2012 to 2013, represents a specific configuration within the third generation (D4) of Audi’s flagship luxury sedan. Positioned as an entry-level offering in many markets, particularly Europe and Asia, this variant aimed to provide A8 prestige with improved fuel efficiency compared to the larger displacement engines. It utilized the Volkswagen Group’s longitudinal platform (PL46) also known as the A8/A6 platform, shared with models like the Porsche Panamera and Bentley Continental GT. The “L” designation signifies the long-wheelbase version, prioritizing rear passenger comfort. This model served as a bridge for customers desiring the A8 experience without the higher price tag and running costs associated with the 3.0T or 4.2T models.
Technical Specifications
| Brand | Audi |
| Model | A8 |
| Generation | A8L (D4, 4H) |
| Type (Engine) | 2.5 FSI V6 (204 Hp) tiptronic |
| Start of production | 2012 |
| End of production | 2013 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (combined) | 8.8 l/100 km |
| Fuel consumption (US mpg) | 26.7 US mpg |
| Fuel consumption (UK mpg) | 32.1 UK mpg |
| Fuel consumption (km/l) | 11.4 km/l |
| CO2 emissions | 211 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 | 237 km/h (147.26 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 9.8 kg/Hp |
| Weight-to-torque ratio | 8 kg/Nm |
| Power | 204 Hp @ 6000 rpm |
| Power per litre | 81.7 Hp/l |
| Torque | 250 Nm @ 3000-4750 rpm (184.39 lb.-ft. @ 3000-4750 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | CVBA |
| Engine displacement | 2498 cm3 (152.44 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 80.2 mm (3.16 in.) |
| Piston Stroke | 82.4 mm (3.24 in.) |
| Compression ratio | 12.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 6.8 l (7.19 US qt | 5.98 UK qt) |
| Coolant capacity | 11.5 l (12.15 US qt | 10.12 UK qt) |
| Kerb Weight | 1995 kg (4398.22 lbs.) |
| Max. weight | 2420 kg (5335.19 lbs.) |
| Max load | 425 kg (936.96 lbs.) |
| Trunk (boot) space – minimum | 520 l (18.36 cu. ft.) |
| Fuel tank capacity | 82 l (21.66 US gal | 18.04 UK gal) |
| Length | 5267 mm (207.36 in.) |
| Width | 1949 mm (76.73 in.) |
| Width including mirrors | 2111 mm (83.11 in.) |
| Height | 1471 mm (57.91 in.) |
| Wheelbase | 3122 mm (122.91 in.) |
| Front track | 1644 mm (64.72 in.) |
| Rear track | 1635 mm (64.37 in.) |
| Front overhang | 1003 mm (39.49 in.) |
| Rear overhang | 1142 mm (44.96 in.) |
| Drag coefficient (Cd) | 0.26 |
| Minimum turning circle | 12.7 m (41.67 ft.) |
| Drivetrain Architecture | ICE, Front wheel drive |
| Number of gears | 8 |
| Gearbox type | automatic transmission tiptronic |
| Front suspension | Independent multi-link suspension, Air suspension |
| Rear suspension | Independent on trapezoidal lever, Air suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 235/60 R17 |
| Wheel rims size | 8J x 17 |
Powertrain & Engine Architecture
The heart of this A8 L variant is the CVBA engine, a 2.5-liter naturally aspirated V6. This engine belongs to Audi’s FSI (Fuel Stratified Injection) family, utilizing direct injection technology to deliver fuel directly into the combustion chamber. This improves efficiency and power output compared to traditional port fuel injection. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, optimizing airflow for enhanced performance. The 12.3:1 compression ratio further contributes to the engine’s efficiency. Paired with this engine is the ZF 8HP80 eight-speed automatic transmission, marketed by Audi as “tiptronic.” This transmission is known for its smooth shifting and wide gear ratio spread, contributing to both fuel economy and acceptable acceleration. The transmission allows for manual gear selection via the shift lever or steering wheel-mounted paddles.
Driving Characteristics
The 204 horsepower and 250 Nm (184 lb-ft) of torque produced by the 2.5 FSI V6, while adequate for comfortable cruising, doesn’t deliver the exhilarating performance of the higher-spec A8 models. Acceleration from 0-60 mph takes around 9.1 seconds. The tiptronic transmission is well-matched to the engine, providing smooth and relatively quick shifts. However, the engine can feel strained when pushed hard, particularly during overtaking maneuvers. The long wheelbase and air suspension contribute to a comfortable ride, absorbing bumps and imperfections in the road effectively. The steering is precise but lacks the feedback found in more sporting luxury sedans. Compared to the 3.0T supercharged V6, this variant feels noticeably slower, but offers a significant improvement in fuel economy.
Equipment & Trim Levels
The 2.5 FSI tiptronic A8 L typically came standard with a generous array of features, reflecting its luxury positioning. These included leather upholstery, power-adjustable front seats with memory function, a multi-function steering wheel, a premium sound system, dual-zone automatic climate control, and xenon headlights. Optional extras included a sunroof, upgraded leather packages, a rear-seat entertainment system, adaptive cruise control, and a Bang & Olufsen sound system. Trim levels varied by market, but generally focused on aesthetic enhancements like wood or aluminum interior trim options and different wheel designs.
Chassis & Braking
The A8 L (D4) features an independent suspension system all around, with air suspension standard on this variant. The air suspension allows for adjustable ride height and damping, further enhancing ride comfort. Front brakes are ventilated discs, while rear brakes are also ventilated discs, providing adequate stopping power for the vehicle’s weight. Anti-lock braking system (ABS) is standard. The chassis is constructed primarily of aluminum, contributing to a relatively lightweight body for its size. Stabilizer bars are fitted front and rear to reduce body roll during cornering.
Market Reception & Comparison
The 2.5 FSI tiptronic A8 L was generally well-received by critics as a comfortable and refined luxury sedan. However, its performance was often criticized as being underwhelming, particularly compared to its more powerful siblings. Fuel economy was a strong point, making it an attractive option for buyers prioritizing efficiency. Compared to the 3.0T model, the 2.5 FSI offered a lower purchase price and better fuel economy, but at the expense of performance. The 3.0T was the more popular choice for buyers seeking a balance of performance and efficiency. The 4.2T offered significantly more power but came with a substantial price premium and higher running costs.
Legacy
The CVBA engine, while not known for any major inherent flaws, requires regular maintenance to ensure longevity. The eight-speed tiptronic transmission is generally reliable, but fluid changes are crucial to prevent issues. Today, the 2.5 FSI A8 L represents an affordable entry point into Audi’s flagship luxury sedan range on the used car market. While it may not offer the same performance as the higher-spec models, it provides a comfortable and well-equipped driving experience at a reasonable price. Its relatively simple engine design, compared to the supercharged or turbocharged variants, can potentially translate to lower long-term maintenance costs.
