Last updated: 2026-10-10
Audi Q8 Reliability by Year
Audi Q8 used buyer's guide: reliability rates good, but a failed 48-volt starter generator can shut the SUV down while driving.
Audi Q8 Reliability Overview
A failing 48-volt starter generator is the Q8's biggest weakness, since it can shut the SUV down while moving, and acceleration lag from a stop is the other common complaint. Reliability rates good but below average among SUVs, and 2019 draws the most complaints while 2023 is the better used pick. Repairs average about $1127 a year.
Current generation: 1st gen (2019–2023), facelifted 2024.
Best & Worst Audi Q8 Years
Best Audi Q8 Years to Buy
Based on reliability index scoreThe 2023 has only 2 owner complaints, against 103 for the 2019, and 3 recalls in federal records. Its complaints are about brakes and unspecified issues, not the generator shutdown that dominates older years. It has also been on the road long enough to show a real record, unlike 2025 and 2026.
Audi Q8 Years to Avoid
Owners filed 103 complaints, mostly about the power train and electrical system. Acceleration lags for a few seconds from a stop, and the starter generator can fail so the SUV shuts down while moving. Parts are often back ordered, so repairs drag on for weeks or months. Some owners also describe heavy steering after the shutdown.
Audi Q8 Reliability Score Trend
Audi Q8 reliability has improved in recent years, with newer models scoring an average of 67/100 compared to 60/100 for older years.
Scores 0–100. Higher is better.
| Year | Score | Rating |
|---|---|---|
| 2019 | 53/100 | Mixed |
| 2020 | 63/100 | Good |
| 2021 | 60/100 | Good |
| 2022 | 65/100 | Good |
| 2023 | 67/100 | Good |
| 2024 | 64/100 | Good |
| 2025 | 67/100 | Good |
| 2026 | 70/100 | Good |
Year-by-Year Reliability
2026 Audi Q8
0 recalls · 0 complaints
Good standing with no complaints or recalls on file, but a new year with little road time, and it rates below average among 2026 SUVs.
2025 Audi Q8
2 recalls · 1 complaints
Rates among the stronger Q8 years with two recalls and a single crash-related complaint, far fewer problems than the 2024 model's 16 complaints.
2024 Audi Q8
8 recalls · 16 complaints
Middle of the pack among Q8 years, with brake shudder and charging failures that the neighboring 2023 and 2025 model years report far less often.
2023 Audi Q8
3 recalls · 2 complaints
Last year of the first generation, with fewer complaints and recalls than both 2022 and 2024, and a good standing close to the class average.
2022 Audi Q8
7 recalls · 5 complaints
Only 5 complaints, but three describe sudden electrical shutdowns at highway speed, and this year ranks below average among 2022 SUVs.
2021 Audi Q8
14 recalls · 28 complaints
Weaker than most Q8 years, with alternator failures that cut power while driving and 14 recalls; the 2020 and 2022 models both rate better.
2020 Audi Q8
4 recalls · 25 complaints
Sits mid-pack among Q8 years, with four recalls and engine and electrical complaints, but far fewer complaints than the 2019 model.
2019 Audi Q8
5 recalls · 103 complaints
Weakest of the eight scored Q8 years, with starter generator shutdowns and five recalls in the first year of its generation.
Found Your Audi Q8? Check Its History
Air bags (1) problems come up most in Audi Q8 owner complaints, and 43 recalls cover the years we track. A VIN check shows whether the car you found had its recall work done, plus accident and title history.
- Accidents
- Open Recalls
- Title History
- Odometer Rollback
Audi Q8 Repair Costs
Reliability Rating
2.5/5
Annual Repair Cost
$1127
Repair Frequency
0.7/yr
Audi Q8 Years to Avoid
See which model years have the most problems
Most Reliable Audi Models
Compare all Audi models by reliability
Compare Audi Q8 With Similar SUVs
The Audi Q8 competes with other full-size suvs such as BMW X5, Land Rover Range Rover Sport, and Mercedes-Benz GLE.
Q8 vs BMW X5
9 years tracked · 647 complaints
Q8 vs Land Rover Range Rover Sport
9 years tracked · 757 complaints
Q8 vs Mercedes-Benz GLE
8 years tracked · 410 complaints
Q8 vs BMW X6
5 years tracked · 22 complaints
Q8 vs Porsche Cayenne
8 years tracked · 111 complaints
More Audi Q8 comparisons
Frequently Asked Questions
- What is the best year for the Audi Q8?
- The 2023 is the best used pick. It has been on the road long enough to build a record, and it shows only 2 owner complaints and 3 recalls. The 2026 also rates well, but it is too new to judge fairly.
- Is the Audi Q8 reliable?
- Yes, it rates good, though it ranks below average among SUVs. Most years rate good, and the 2019 is the weak one. The biggest risk is the 48-volt starter generator, which can fail and shut the SUV down while driving.
- What are the most common Audi Q8 problems?
- Electrical system complaints lead with 54, followed by power train with 43. Steering and engine each have 15. Many of them trace back to the mild hybrid starter generator failing, which causes warnings, a shutdown, and heavy steering.
- How much does it cost to repair an Audi Q8?
- Independent repair-cost data puts the estimated annual repair cost at $1127. That is an average. A shutdown caused by the starter generator can mean a long wait, because owners report the part is often back ordered for weeks or months.
- Does the Audi Q8 have engine problems?
- Some do. Owners describe piston slap, and dealer inspections found scratched cylinder walls. They say Audi extended engine coverage from 50k to 80k miles for this, but cars just past the limit were turned down. Misfires and worn engine mounts also appear.
How we score the Audi Q8
Scores weight complaint severity at 35%, repair costs at 30%, recall impact at 20%, and the spread of complaints across systems at 15%, with complaint counts adjusted for US sales. Read the full methodology.
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