Comprehensive Buyer’s Guide for the Third Generation Audi S8 (D4; 2012-2018)

The introduction of the Audi S8 third generation (D4; 2012–2018) marked a significant advancement in Audi’s lineup of performance luxury sedans. Released in 2012, the D4 S8 embodied a refined yet assertive character in the luxury market, prioritizing not only thrilling performance but also comfort.

At its core, the D4 S8 is powered by a robust 4.0-liter twin-turbocharged V8 engine that generates 512 horsepower and 479 lb-ft of torque. This powerful engine is paired with an 8-speed automatic transmission, allowing the S8 to go from 0 to 60 mph in merely 4.1 seconds, making it one of the most rapid sedans of its era. Audi’s Quattro all-wheel-drive system also provides exceptional traction and handling, even under difficult driving conditions.

Additionally, the engine incorporates a cylinder deactivation feature that enhances fuel efficiency during light driving, boosting its environmental credentials alongside its performance reputation.

The S8’s exterior is characterized by a sleek and understated design, boasting aggressive features such as larger air intakes, quad exhaust outlets, and distinctive LED headlights that contribute to its modern aesthetic. Its aerodynamic shape and lightweight aluminum body not only enhance performance but also provide a smooth and confident ride at high speeds.

A facelift in 2015 refined the S8’s appearance further, introducing a sharper front grille and updated Matrix LED headlights that elevated its visual allure.

Inside, the S8’s cabin is a testament to exceptional craftsmanship, featuring high-quality leather upholstery, carbon fiber or wood trims, and an advanced MMI (Multi Media Interface) system. Audi’s Virtual Cockpit and heads-up display ensure that the driver has access to vital information in an organized and intuitive manner.

Comfort was equally prioritized, with the S8 providing adjustable sport seats equipped with memory functions, in addition to an optional Bang & Olufsen sound system for a captivating audio experience.

During its production run, the Audi S8 faced competition from other high-performance luxury sedans, including the BMW 7 Series M760Li and the Mercedes-AMG S63.

Each of these contenders offered unique advantages, but the Audi S8 stood out with its blend of all-wheel-drive capability and powerful twin-turbo V8, making it an exciting option for automotive enthusiasts.

Model Changes (Breakdown by Year)

2012 Audi S8

The third generation of the Audi S8 was unveiled in 2012 on the D4 A8 platform, featuring the same 4.0-liter twin-turbocharged V8 that delivered 512 horsepower, supported by an 8-speed automatic transmission and Audi’s Quattro all-wheel-drive system. This setup enabled the S8 to accelerate from 0 to 60 mph in just 4.1 seconds, emphasizing its performance potential.

A notable innovation included Audi’s cylinder-on-demand (COD) technology, enhancing fuel efficiency by shutting off half of the engine’s cylinders during lighter driving scenarios. The vehicle also featured adaptive air suspension, dynamic steering, and a sport-tuned chassis, ensuring a balanced ride that seamlessly blends comfort and performance.

Visually, the S8 showcased its sporty yet refined styling, characterized by larger air intakes, quad exhaust outlets, and signature LED lights. The interior exuded luxury with leather materials, carbon fiber finishes, and the latest MMI infotainment system, creating an elegant atmosphere for both drivers and passengers.

The starting price of the 2012 Audi S8 was around $110,000.

2013 Audi S8

For 2013, the Audi S8 largely retained the features of its inaugural year.

The starting price for the 2013 Audi S8 continued at approximately $110,000.

2014 Audi S8

The 2014 Audi S8 had no significant mechanical or visual changes.

The starting price for the 2014 Audi S8 was around $112,500.

2015 Audi S8

In 2015, Audi refreshed the S8 with a mid-cycle update, enhancing its design for a more contemporary appeal. The front was redesigned with a new single-frame grille, sharper LED Matrix headlights, and revised air intakes, giving the car a more aggressive look. At the back, updated taillights and quad exhaust tips completed the transformation.

Alongside design tweaks, Audi also increased the engine output to 520 hp while maintaining the torque of 479 lb-ft.

The 2015 model also saw enhancements in its technology, especially in driver assistance features. Updates included improved active lane assist, adaptive cruise control, and new safety technologies like night vision assist and Audi pre-sense, all designed to elevate the S8’s safety and technological sophistication.

The starting price for the 2015 Audi S8 was about $112,500.

2016 Audi S8

In 2016, the Audi S8 Plus was introduced, offering enhanced performance with 605 hp and 553 lb-ft of torque, which could be boosted to 590 lb-ft via an over-boost feature. This added power allowed the S8 Plus to reach 0 to 60 mph in just 3.7 seconds, ranking it among the swiftest sedans at that time.

The S8 Plus was electronically limited to a top speed of 155 mph; however, with the optional Dynamic Package, it could achieve 190 mph. This version also included various exterior upgrades, including carbon-fiber accents, black trim, and sportier styling with unique 21-inch wheels. 

Enhanced quad exhausts and a more aggressive rear diffuser set it apart from the standard S8 model.

Interior upgrades for the S8 Plus featured high-end materials, including exclusive leather and Alcantara, and additional carbon-fiber inlays. 

The starting price for the 2016 Audi S8 Plus was roughly $115,825, while the S8 Plus variant began at around $128,500.

2017 Audi S8

The 2017 Audi S8 experienced no major mechanical or cosmetic changes.

The starting price for the 2017 Audi S8 was approximately $116,850 in the U.S. Meanwhile, by 2017, Audi had shifted focus significantly towards the S8 Plus variant, which commenced at about $128,700.

2018 Audi S8

The 2018 model represented the final year for the D4 generation of the Audi S8. As Audi prepared to release the next-generation S8, no significant updates were implemented in this model year. 

The starting price for the 2018 Audi S8 Plus was around $116,875.

Audi S8 3rd Generation Common Problems

The third-generation Audi S8 (2012–2018) does present some common issues that can impact various components, such as the engine, suspension, and electronics. Awareness of these issues can assist owners in maintaining their S8 and avoiding expensive repairs. Below are some typical problems associated with the S8, including turbocharger failures and electrical issues.

It’s essential to recognize that all vehicles, even high-end models, can experience problems, making it crucial to conduct a Pre-Purchase Inspection (PPI) with an authorized dealer or an experienced independent mechanic to uncover any underlying issues.

Turbocharger Failure: This may occur due to oil starvation or leaks, resulting in significant engine power loss and possibly causing engine damage. Repairs can be costly due to the extensive labor required for turbocharger replacement.

Carbon Build-Up: The direct injection system may develop carbon deposits on the intake valves, leading to misfires, poor fuel efficiency, and rough idling. Regular carbon cleaning is advisable to prevent this issue.

Air Suspension Problems: The adaptive air suspension system in the S8 can develop leaks and compressor failures as it ages. In instances of suspension failure, the vehicle may drop to its lowest setting, negatively affecting ride quality and necessitating expensive replacements of suspension parts.

Electrical Malfunctions: Numerous electronic systems in the Audi S8 may fail, affecting the infotainment system, sensors, or control modules. Common issues include faulty backup cameras, navigation systems, or sporadic electrical glitches, which can pose diagnostic challenges.

Brake Wear: Due to the high-performance nature of the S8, components such as pads and rotors typically wear more rapidly than those in standard vehicles. Owners often report frequent replacements, particularly if the vehicle is driven aggressively.

Recalls

2013 to 2017 Audi S8 vehicles

Engine and engine cooling (Recall no. 22V178000)

The turbocharger oil supply strainer might become obstructed, leading to bearing wear from inadequate lubrication. Deteriorated bearings can result in the turbine wheel contacting the turbocharger housing or breaking the shaft, resulting in an engine stall, elevating the risk of a crash.

2013 to 2018 Audi S8 vehicles

Structure (Recall no. 20V397000)

The seal around the engine compartment may become loose and touch hot engine parts. Contact between the seal and heated components could heighten the risk of a fire.

2013 to 2016 Audi S8 vehicles

Fuel system, gasoline (Recall no. 19V057000)

The fuel supply line for the high-pressure fuel pump could become porous and leak fuel. Fuel leakage near an ignition source can pose a fire hazard.

2013 to 2015 Audi S8 vehicles

Fuel system, gasoline (Recall no. 18V430000)

The high-pressure fuel pump’s supply line may gradually develop porosity, resulting in fuel leaks. A fuel leak in the presence of a spark can elevate the risk of fire.

2013 to 2014 Audi S8 vehicles equipped with a standard sunroof, manufactured from March 12, 2013, to July 15, 2013

Visibility (Recall no. 13V448000)

These vehicles may have sunroof glass panels that could shatter. If the glass breaks while the vehicle is in motion, it may injure occupants or distract the driver, heightening the crash risk.

Maintenance and Ownership Costs

In comparison to other high-performance luxury sedans, the 3rd generation Audi S8 is generally regarded as manageable in terms of maintenance costs, although it remains a premium vehicle. Routine maintenance, including oil changes, tire rotations, and brake servicing, is critical for optimal performance, with costs varying based on whether a dealership or independent mechanic is utilized for service. 

Regular maintenance and necessary repairs can incur costs that vary according to the service provider.

Below is the recommended service schedule and intervals as per Audi:

Every 5,000 MILES

• Rotate tires.
• Change oil and filter.

Every 15,000 MILES

• Perform comprehensive checks and necessary replacements.
• Battery service.
• Fuel filter replacement.
• Door lubrication.
• Cabin air filter replacement.

Every 25,000 MILES

• Continue with regular oil and filter changes for engine health maintenance.

Every 35,000 MILES

• Conduct more thorough maintenance checks.
• Lubricate the hood hinge.
• Service battery/cables.
• Change transmission fluid.
• Replace the cabin air filter.

Typical service costs for the Audi S8 include:

• Oil Change – Expect to pay $200 to $250 at independent shops or $300 to $400 at dealerships.
• Minor Service – Services that include fluid checks, tire rotations, and inspections average between $500 and $800, typically recommended every 10,000 miles.
• Major Service – A comprehensive service, usually every 40,000 miles, which includes thorough inspections, filter replacements, and sometimes spark plug changes, costs around $1,500 to $3,000.
• Tires – A set of four replacement tires, such as Michelin Pilot Super Sport, can range from $2,000 to $2,500.
• Brakes – Brake pad replacements cost between $600 to $1,000, with rotors costing an additional $1,200 to $1,500, although carbon ceramic brakes generally do not require replacement.

Options List

When considering options for the 3rd Generation Audi S8, buyers have several packages available.

The Dynamic Package is a highlight for performance enthusiasts, featuring carbon-ceramic brakes that enhance stopping power and increase the top speed to 190 mph, making it a popular choice for those seeking superior handling capabilities. The precision and endurance of these brakes are especially beneficial for high-speed driving.

For those who appreciate high-quality sound, the Bang & Olufsen Advanced Sound System offers a luxurious auditory experience, transforming the cabin into a mobile concert venue.

Delivering 1,400 watts through 19 speakers, this system offers exceptional audio quality, ensuring a vibrant and clear listening experience whether on the move or stationary. Designed with pop-up tweeters on the dashboard, it also adds a stylish touch to the interior.

For enhanced comfort, the Comfort Seating Package is recommended for long journeys, featuring 22-way power-adjustable seats equipped with ventilation and massage functions, ensuring maximum comfort for both driver and passengers. These seats are specifically designed to minimize fatigue during extended travels.

The Driver Assistance Package adds another layer of safety and convenience, integrating advanced driving aids such as adaptive cruise control, Audi pre-sense, active lane assist, and night vision assist. These technologies enhance driver awareness and safety in varying driving situations, particularly at night or during highway travel.