2019-2020 Audi A8L (D5) 60 TDI V8 (435 Hp) Mild Hybrid quattro tiptronic

The Audi A8 L (D5) 60 TDI V8, produced from December 2019 to September 2020, represents a high-performance iteration of the fourth-generation A8 flagship sedan. Positioned as a premium offering within the D5 range, this variant combined a potent diesel V8 engine with mild-hybrid technology and Audi’s renowned quattro all-wheel-drive system. It aimed to deliver both exhilarating performance and refined luxury, primarily targeting discerning buyers in markets where large, technologically advanced sedans remained popular. The “L” designation signifies a long-wheelbase version, prioritizing rear passenger comfort. This model competed with other luxury sedans such as the BMW 7 Series and Mercedes-Benz S-Class.

Technical Specifications

INTRODUCTION

The Audi A8 L 60 TDI V8 (D5) debuted in late 2019 as a top-tier offering in Audi’s flagship sedan lineup. Built on the modular longitudinal platform (MLB evo), also known as the D5 platform, it represented a significant step forward in terms of technology, luxury, and performance. The “60 TDI” designation indicated the engine’s approximate power output in traditional Audi nomenclature, while the “V8” confirmed the engine configuration. The inclusion of “Mild Hybrid” signified the integration of a 48-volt electrical system to enhance fuel efficiency and provide a smoother driving experience. This variant was primarily sold in European and Asian markets, where diesel engines remained popular due to their fuel economy and torque characteristics.

Powertrain & Engine Architecture

At the heart of the A8 L 60 TDI V8 lies the CVXB engine, a 4.0-liter turbocharged diesel V8. This engine utilizes a sophisticated diesel commonrail fuel injection system and a bi-turbocharger setup with an intercooler to deliver a substantial 435 horsepower at 3750-4750 rpm and a massive 900 Nm (663.81 lb.-ft.) of torque between 1250-3250 rpm. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder and a high compression ratio of 16:1. The mild-hybrid system incorporates a belt-driven starter-generator (BSG) and a small lithium-ion battery, enabling features like extended engine-off coasting, smoother start-stop operation, and a slight power boost during acceleration. The engine is paired with an eight-speed tiptronic automatic transmission, known for its quick and smooth shifts. This transmission is specifically tuned to handle the high torque output of the diesel V8.

Driving Characteristics

The A8 L 60 TDI V8 delivers a remarkably refined and powerful driving experience. The abundant torque available from low engine speeds provides effortless acceleration in virtually any situation. The eight-speed tiptronic transmission is well-matched to the engine, offering seamless gear changes and contributing to a smooth and comfortable ride. While the 0-60 mph time is around 4.2 seconds, the true strength of this powertrain lies in its ability to provide relaxed and confident cruising at highway speeds. Compared to lower-powered A8 variants, the 60 TDI offers significantly more performance, while remaining more fuel-efficient than the gasoline-powered alternatives. The quattro all-wheel-drive system ensures excellent traction and stability in all weather conditions.

Equipment & Trim Levels

The A8 L 60 TDI V8 came standard with a comprehensive array of luxury features, including leather upholstery, heated and ventilated front seats with massage function, a premium sound system, a panoramic sunroof, and a sophisticated infotainment system with dual touchscreens. Standard safety features included adaptive cruise control, lane keeping assist, and automatic emergency braking. Optional extras included a rear-seat entertainment system, a head-up display, and various customization options for interior trim and exterior paint. The long-wheelbase configuration provided generous rear legroom, enhancing passenger comfort.

Chassis & Braking

The A8 L 60 TDI V8 features an independent multi-link suspension system at both the front and rear, coupled with an adaptive air suspension system. This suspension system automatically adjusts to road conditions and driving style, providing a comfortable ride while maintaining excellent handling. The car is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Additional safety features include ABS (Anti-lock braking system) and 4-wheel steering (4WS), which enhances maneuverability at low speeds and stability at high speeds.

Market Reception & Comparison

The A8 L 60 TDI V8 was generally well-received by automotive critics, who praised its powerful engine, refined ride, and luxurious interior. However, some reviewers noted that the infotainment system could be complex to use. Compared to the A8 50 TDI, the 60 TDI offered a significant performance upgrade, but at a higher price point. The 60 TDI also provided a more fuel-efficient alternative to the gasoline-powered A8 60 TFSI. In terms of reliability, the CVXB engine has proven to be generally robust, although diesel engines can be more susceptible to issues with the emissions control system.

Legacy

The Audi A8 L 60 TDI V8 (D5) represents a high point in Audi’s diesel engine technology. While diesel engines have faced increasing scrutiny in recent years, this variant remains a desirable option for those seeking a blend of performance, luxury, and fuel efficiency. On the used car market, these models typically command a premium price due to their high specification and powerful engine. The CVXB engine, when properly maintained, is known for its longevity and reliability, making the A8 L 60 TDI V8 a potentially sound long-term investment for discerning buyers.