The 2019 Audi S5 represents a pivotal point in the B9 generation lifecycle, offering a refined blend of turbocharged power, sophisticated quattro all-wheel-drive dynamics, and luxury interior appointments. Available in Coupe, Cabriolet, and Sportback body styles, the 2019 model is powered by a 3.0-liter TFSI V6 engine paired with an 8-speed Tiptronic transmission, delivering 354 horsepower and 369 lb-ft of torque.
Powertrain and Mechanical Specifications
At the heart of the 2019 Audi S5 lies a 3.0-liter twin-scroll turbocharged V6 engine. Unlike the supercharged units found in previous generations, this powerplant utilizes a twin-scroll turbocharger mounted within the "V" of the engine block, a configuration Audi terms "Hot V." This design minimizes the distance exhaust gases must travel to the turbocharger, effectively reducing turbo lag and providing near-instant throttle response.
The engine produces 354 horsepower between 5,400 and 6,400 rpm and maintains a robust 369 lb-ft of peak torque from 1,370 to 4,500 rpm. This torque curve is particularly significant for daily driving, as it provides substantial pulling power at low engine speeds, making highway merging and passing maneuvers effortless.
Supporting this engine is an 8-speed Tiptronic automatic transmission. Unlike the dual-clutch transmissions (S-tronic) found in lower-tier Audi models or older S-series variants, the Tiptronic is a torque-converter automatic specifically tuned for the high-torque output of the V6 engine. It offers quick, smooth shifts and operates with an emphasis on both refinement and long-term durability.
The quattro All-Wheel-Drive System
The defining characteristic of the 2019 S5 is its permanent quattro all-wheel-drive system with self-locking center differential. Under normal driving conditions, the system directs 60 percent of the torque to the rear wheels and 40 percent to the front, providing a rear-biased feel that enthusiasts prefer for handling balance.
If the system detects wheel slip, the mechanical center differential can instantaneously shift up to 70 percent of torque to the front wheels or up to 85 percent to the rear wheels. This mechanical versatility ensures consistent traction in various weather conditions, from dry mountain roads to rain-slicked urban streets. Furthermore, the available Sport Rear Differential, often found in models equipped with the S Sport Package, allows for active torque vectoring across the rear axle, significantly sharpening the vehicle's turn-in and reducing understeer during aggressive cornering.
Exterior and Chassis Dimensions
The 2019 S5 maintains the signature Audi "Sport" aesthetic, characterized by lower ground clearance, wider side sills, a platinum-gray front grille with horizontal double bars, and the classic quad-exhaust tailpipe arrangement.
The vehicle's dimensions vary slightly by body style:
- Coupe: Designed with a 108.9-inch wheelbase, focusing on a balanced silhouette and tighter handling dynamics.
- Sportback: Features a slightly extended wheelbase to accommodate rear-seat legroom and the hatchback utility, measuring 111.2 inches.
- Cabriolet: Shares the coupe's footprint but includes a reinforced chassis to compensate for the retractable fabric roof mechanism, resulting in a slightly higher curb weight.
The suspension geometry consists of a five-link setup both front and rear, utilizing extensive aluminum components to reduce unsprung weight. This engineering choice is critical, as it allows the dampers to react more quickly to road imperfections, balancing ride comfort with the taut handling expected of an S-badged model.
Interior Technology and Features
The interior of the 2019 Audi S5 serves as a benchmark for late-2010s automotive ergonomics. The centerpiece is the optional Audi virtual cockpit—a 12.3-inch high-resolution digital display that replaces traditional analog gauges. This system allows the driver to toggle between views, including a "Sport" mode that centers a large tachometer, providing critical performance data directly in the line of sight.
Connectivity and infotainment are managed via the MMI (Multi-Media Interface) system, which includes a center-mounted screen and a rotary control dial with an integrated touchpad. In 2019, Apple CarPlay and Android Auto were standard across the lineup, facilitating seamless integration with smartphones.
The materials used throughout the cabin—Nappa leather, brushed aluminum, and optional carbon fiber inlays—are assembled with a focus on tactile quality. The "S" sport seats, which feature pneumatic side bolsters and massage functions in some trim levels, are designed to hold occupants securely during cornering without sacrificing long-term seating comfort on long commutes.
Comparative Specifications Table
| Feature | 3.0L TFSI V6 Specs |
|---|---|
| Engine Type | V6, Turbocharged (Single Twin-Scroll) |
| Horsepower | 354 hp @ 5,400–6,400 rpm |
| Torque | 369 lb-ft @ 1,370–4,500 rpm |
| Transmission | 8-speed Tiptronic Automatic |
| 0–60 MPH (Coupe) | Approx. 4.4 seconds |
| Drive System | quattro All-Wheel Drive |
| Curb Weight (Coupe) | ~3,825 lbs |
Practical Considerations: Fuel Economy and Maintenance
While the S5 is a performance-oriented vehicle, the 2019 model features efficiency-minded engineering such as an engine start-stop system and a "coasting" mode in the transmission when in Comfort mode. EPA-estimated fuel economy typically averages around 20 mpg in city driving and 27–29 mpg on the highway, depending on the body style and wheel size.
Maintenance requirements for the 2019 model follow the standard Audi intervals, typically every 10,000 miles or 12 months. Owners should prioritize the following:
- Transmission Fluid Service: While advertised as a "lifetime" fluid by some, technicians recommend fluid and filter changes every 60,000 to 80,000 miles to ensure the longevity of the Tiptronic unit.
- Carbon Cleaning: Direct injection engines can experience carbon buildup on the intake valves over long durations. While the B9 engine is more resilient than its predecessors, periodic inspection is advised for high-mileage vehicles.
- Brake Systems: The high-performance S-model brakes offer excellent stopping power but require high-quality components. Using OEM-spec pads and rotors is essential to prevent noise and maintain the engineered pedal feel.
Common Questions and Clarifications
Does the 2019 Audi S5 use a dual-clutch transmission?
No. The 2019 S5 uses an 8-speed Tiptronic torque-converter automatic transmission. This decision was made to handle the high torque output of the 3.0-liter turbocharged engine more reliably and to provide a smoother driving experience in stop-and-go traffic compared to early dual-clutch designs.
Is there a significant weight difference between the Sportback and the Coupe?
Yes, the Sportback is generally heavier than the Coupe due to the addition of rear doors, a larger glass hatch, and a slightly longer wheelbase. While the performance gap is negligible for most drivers, the Sportback offers significantly better utility.
Can I add the Sport Rear Differential if the car doesn't have it?
Retrofitting the Sport Rear Differential is highly complex and generally not recommended. It involves not just the mechanical differential itself, but also integration with the car's dynamic steering and suspension controllers, as well as updated software coding. It is best to purchase a vehicle that already has this option equipped.
What is the primary difference between the 2018 and 2019 models?
The 2019 model year saw minor adjustments to standard equipment and trim packages, such as the addition of more standard driver-assistance features in specific markets. Mechanically, the 2019 S5 remains part of the same production cycle as the 2018 model, meaning parts and technical service manuals are largely interchangeable.
How does the "Hot V" turbo layout affect heat management?
By placing the turbocharger inside the V of the engine, the engine bay temperatures can be higher than naturally aspirated engines. Audi utilizes robust cooling systems, including electric auxiliary water pumps, to circulate coolant through the turbocharger even after the engine is turned off, preventing heat soak and protecting the bearings.
Final Recommendation
When considering a 2019 Audi S5, the vehicle remains a highly capable daily driver that bridges the gap between grand touring comfort and sports car performance. Prospective owners should prioritize vehicles with the S Sport Package, as the inclusion of the Sport Rear Differential and adjustable dampers fundamentally alters the vehicle's cornering character. Before finalizing any purchase, verify the service history to ensure that the 10,000-mile oil change intervals were strictly followed, as the turbocharger's longevity is highly dependent on oil cleanliness and quality.
