2021 Audi S8

Introduction

The 2021 Audi S8 is a luxury performance sedan known for its powerful engine and advanced technological features. It is offered with a 4.0-liter twin-turbocharged V8 engine paired with an 8-speed automatic transmission. The V8 engine produces 563 horsepower and 590 lb-ft of torque, enabling the S8 to accelerate from 0-60 mph in 3.8 seconds. Despite its impressive performance, the S8 is also praised for its comfortable and well-appointed interior, as well as its intuitive infotainment system. However, there have been some reported issues with the vehicle.

Engine

4.0L Twin-Turbocharged V8 Engine

• Oil Leaks from Valve Cover Gaskets: Symptoms include a burning oil smell and oil stains under the vehicle. Solution: Replace the valve cover gaskets. Estimated Cost to Fix: $700 - $1,200+
• Timing Chain Tensioner Failure: Symptoms include a rattling noise from the engine and a loss of power. Solution: Replace the timing chain tensioner. Estimated Cost to Fix: $2,000 - $3,000+
• High-Pressure Fuel Pump Failure: Symptoms include engine stalling, rough idling, and difficulty starting. Solution: Replace the high-pressure fuel pump. Estimated Cost to Fix: $1,500 - $2,500+

Transmission

8-Speed Automatic Transmission

• Transmission Shuddering: Symptoms include vibrations and hesitation during gear changes. Solution: Replace the transmission fluid and filter. Estimated Cost to Fix: $200 - $400+
• Transmission Slipping: Symptoms include difficulty accelerating and a loss of power. Solution: Replace the transmission clutches and/or torque converter. Estimated Cost to Fix: $2,500 - $4,000+
• Valve Body Failure: Symptoms include delayed or erratic gear changes. Solution: Replace the transmission valve body. Estimated Cost to Fix: $1,000 - $2,000+

Suspension

• No Issues Found

Electrical

• Battery Drain: Symptoms include a dead battery after extended periods of parking. Solution: Replace the battery and/or investigate potential electrical drains. Estimated Cost to Fix: $200 - $600+
• Infotainment System Malfunctions: Symptoms include touchscreen freezing, navigation issues, and audio problems. Solution: Update the software or replace the infotainment unit. Estimated Cost to Fix: $500 - $1,500+
• Adaptive Cruise Control Failures: Symptoms include the system disconnecting or braking unexpectedly. Solution: Replace the radar sensor or update the software. Estimated Cost to Fix: $1,000 - $2,000+

Exterior

• No Issues Found

Interior

• Panoramic Sunroof Leaks: Symptoms include water leaking into the cabin during heavy rain. Solution: Replace the sunroof seals or adjust the sunroof alignment. Estimated Cost to Fix: $500 - $1,000+
• Climate Control Malfunctions: Symptoms include uneven temperatures and difficulty adjusting the temperature settings. Solution: Replace the climate control module or sensors. Estimated Cost to Fix: $500 - $1,500+
• Door Panel Buzzing: Symptoms include annoying noises coming from the door panels while driving. Solution: Replace the door panel clips or adjust the panel alignment. Estimated Cost to Fix: $200 - $500+

Summary

While the 2021 Audi S8 offers impressive performance and features, it has not been immune to issues. The reported problems include oil leaks, timing chain tensioner failures, and transmission shuddering. Some electrical issues, such as battery drain and infotainment malfunctions, have also been reported. Additionally, there have been instances of sunroof leaks, climate control malfunctions, and door panel buzzing. The severity and cost of these issues can vary significantly depending on the specific problem and the extent of the repairs required. Overall, it is important for potential owners to be aware of these issues and factor them into their purchase decision.