2020 Audi S8 Report
Known issues, recalls, running costs, and what to check before you buy.

Overall Score
Key Takeaways
- The 2020 Audi S8's reliability is rated average, with a notable concern being Engine Control Module (ECM) malfunction due to moisture.
- Multiple recalls, including critical ones for the ECM and rear axle, highlight potential for early-life issues. Confirm all recall work has been completed.
- A high Technical Service Bulletin (TSB) count of 210 indicates numerous minor to moderate issues that have required dealer attention.
- Despite 8 recalls, consumer complaints are zero, suggesting issues are often addressed proactively or via dealer service channels.
2020 Audi S8
The 2020 Audi S8 is a high-performance luxury sedan that blends potent V8 power with sophisticated technology. For the used car buyer, this means a compelling driving experience, but also a need for careful scrutiny. With 8 recalls and a high TSB count of 210, potential buyers must be aware of documented issues. The primary concern revolves around the Engine Control Module (ECM), susceptible to moisture ingress, which can lead to significant electrical problems. The vehicle's complexity and performance focus suggest that maintenance history and pre-purchase inspections are paramount.
Critical Failure Risk
Moisture can enter the ECM due to a missing sealing pin, potentially causing module malfunction or failure. This is a critical safety concern.
Early detection can help you avoid a $1,000-$3,000 repair.
Safety & Bulletins
Owner Complaints
No primary complaint themes found.
Performance & Efficiency
Reliability
Practicality
The score is mainly limited by high fuel consumption.
Who This Car Is For
Best for
Discerning buyers prioritizing performance and luxury over long-term, hassle-free ownership.
+2 more buyer-fit notes in the full report
Avoid if
Budget-conscious buyers seeking minimal running costs and predictable reliability.
+2 more buyer-fit warnings in the full report
2020 Audi S8 Reliability Analysis
Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2020 Audi S8.
Vehicle Specs
- Fuel Type
- Premium
- Transmission
- Automatic (S8)
- Drivetrain
- All-Wheel Drive
- Body Style
- Sedan
- EPA Combined MPG
- 16
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Most Common Issues
1. Engine Control Module (ECM) Moisture Ingress
Most reportedUsage data observed
2. Rear Axle Lock Nut Failure
Usage data observed
First Service Interval
- Oil Change (5W-40 Synthetic) (Parts: 5W-40 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection - Wiper Blade Check
Est. shop cost: $150 - $250
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FAQ
Is the 2020 Audi S8 reliable?
The CarFocal Reliability Score for the 2020 Audi S8 is 8.1/10. Reliability score is 8.1/10. NHTSA recalls: 8. Owner complaints: 0.
How practical is the 2020 Audi S8 for daily use?
Practicality score is 5.0/10. The score is mainly limited by high fuel consumption. EPA combined economy is 16 MPG.
What is the overall score for the 2020 Audi S8?
The CarFocal Overall Score for the 2020 Audi S8 is 6.1/10. Overall score is 6.1/10 (Mixed). Confidence 55%. Maintenance 7.8/10. Practicality 5.0/10.
What does it cost to own and maintain a 2020 Audi S8?
Based on Carfocal's data, First listed service: - Oil Change (5W-40 Synthetic) (Parts: 5W-40 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection - Wiper Blade Check at 10,000 miles. Estimated first-year maintenance: $500 - $1,000. Repair prediction highlight: Engine Control Module (ECM) (typical at 50,000 miles, estimated cost Min: $500 • Max: $2,500+).
What engine is in the 2020 Audi S8?
Engine specs list 8 • 4.0.
What transmission does the 2020 Audi S8 use?
According to CarFocal's specs for the 2020 Audi S8, transmission is Automatic (S8). The paired drivetrain is All-Wheel Drive.
Does the 2020 S8 require Premium gas?
Manufacturer fuel recommendation: Premium.
What is the combined EPA MPG for the 2020 Audi S8?
EPA combined estimate is 16 MPG.
What driver assistance and safety features are available on the 2020 Audi S8?
1 standard driver assistance features. Key features include Tire Pressure Monitoring System.
What body style is the 2020 Audi S8?
According to CarFocal's specs for the 2020 Audi S8, body style is sedan.
What drivetrain does the 2020 Audi S8 use?
According to CarFocal's specs for the 2020 Audi S8, drivetrain is All-Wheel Drive. Transmission is Automatic (S8).
Are there open safety recalls on the 2020 Audi S8?
This model year has 8 official safety campaigns listed.