2010-2013 Audi A8L (D4 4H) 4.2 TDI V8 (350 Hp) quattro Tiptronic

The Audi A8 L (D4, 4H) 4.2 TDI V8 quattro Tiptronic represents a high-performance, luxury iteration of the third-generation A8, produced between 2010 and 2013. Positioned as the flagship within the D4 A8 range, it combined a potent diesel V8 engine with Audi’s renowned quattro all-wheel-drive system and an eight-speed Tiptronic automatic transmission. This variant catered to buyers seeking a blend of effortless power, sophisticated technology, and long-distance comfort, primarily in European and Asian markets where large luxury sedans with diesel engines were highly favored. The “L” designation signifies a long-wheelbase version, prioritizing rear passenger space.

Technical Specifications

Powertrain & Engine Architecture

The heart of the A8 L 4.2 TDI is the CDSB engine, a 4.134-liter (252.27 cubic inches) V8 diesel. This engine utilizes a common rail direct injection system, delivering fuel at extremely high pressure for optimized combustion. It’s equipped with a variable geometry turbocharger and an intercooler to maximize power and efficiency. The engine produces 350 horsepower at 4000 rpm and a substantial 800 Nm (590 lb-ft) of torque between 1750 and 2750 rpm. The high torque output is a hallmark of diesel engines, providing strong acceleration without the need for frequent gear changes. The eight-speed Tiptronic automatic transmission, a ZF-sourced unit, is designed to handle the engine’s torque and provide smooth, responsive shifts. The Tiptronic system allows for both fully automatic operation and manual gear selection via steering wheel-mounted paddles or the gear selector.

Driving Characteristics

The combination of the 4.2 TDI engine and the eight-speed Tiptronic transmission results in a driving experience characterized by effortless power and refinement. Acceleration from 0 to 60 mph takes approximately 5.3 seconds, and the car feels remarkably composed even at high speeds. The quattro all-wheel-drive system provides excellent traction in all weather conditions, enhancing stability and control. Compared to the 3.0 TDI variants, the 4.2 TDI offers significantly more power and torque, resulting in noticeably quicker acceleration and more confident overtaking. While the 3.0 TDI models prioritize fuel economy, the 4.2 TDI focuses on delivering a more luxurious and performance-oriented driving experience. The Tiptronic transmission, while smooth, doesn’t offer the same level of engagement as a manual gearbox, but its seamless shifts contribute to the overall comfort and refinement of the A8 L.

Equipment & Trim Levels

The A8 L 4.2 TDI typically came generously equipped as standard. Features included leather upholstery, power-adjustable and heated front and rear seats, a premium sound system, a navigation system, and a sunroof. The long-wheelbase configuration provided ample rear legroom, making it a particularly appealing choice for chauffeured transport. Optional extras included advanced driver-assistance systems such as adaptive cruise control, lane departure warning, and a night vision system. Interior trim options included a variety of wood veneers and aluminum accents, allowing buyers to personalize the cabin to their preferences. Exterior options included different wheel designs and paint colors.

Chassis & Braking

The A8 L 4.2 TDI features an independent suspension system on all four wheels, designed to provide a comfortable ride and precise handling. The front suspension utilizes a multi-link setup, while the rear suspension employs a trapezoidal link design. The car is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) and electronic stability control (ESC) are standard features, enhancing safety and control. The steering is a rack-and-pinion system with electric power assistance, offering a balanced feel and responsive steering.

Market Reception & Comparison

The Audi A8 L 4.2 TDI was generally well-received by automotive critics, who praised its powerful engine, luxurious interior, and refined driving experience. It was often compared to its rivals from BMW and Mercedes-Benz, and consistently ranked among the top contenders in the luxury sedan segment. Fuel economy was considered respectable for a vehicle of its size and performance, although it was not as fuel-efficient as the 3.0 TDI models. Reliability was generally good, although some owners reported issues with the air suspension system and the complex electronic systems. The 4.2 TDI was positioned as a premium offering within the A8 lineup, commanding a higher price than the 3.0 TDI variants.

Legacy

The Audi A8 L 4.2 TDI (D4) remains a desirable used car today, particularly for those seeking a luxurious and powerful diesel-powered sedan. The CDSB engine, while complex, is generally considered robust and reliable when properly maintained. However, potential buyers should be aware of the potential for costly repairs to the air suspension system and the electronic systems. The car’s sophisticated technology and comfortable ride continue to appeal to buyers who value refinement and performance. Its status as a flagship model from a prestigious brand ensures its continued desirability in the used car market.