Last updated: 2026-03-28
Audi A5 vs Lexus IS: Reliability Compared

Audi A5

Lexus IS
Choosing between the Audi A5 and the Lexus IS? This page compares their reliability scores, NHTSA recall history, owner-reported complaints, and estimated annual repair costs so you can make a confident long-term ownership decision between these two midsize sedans.
Our reliability scores are based on NHTSA recall and complaint data, independent repair cost estimates, and sales-normalized complaint rates. The Lexus IS currently leads with an average score of 82/100 compared to 75/100. Scroll down for the full year-by-year breakdown, common problem areas, and repair cost comparison.
How Do the Audi A5 and Lexus IS Generations Compare?
Verdict
The Lexus IS is more reliable than the Audi A5, scoring 82/100 vs 75/100.
The Lexus IS demonstrates superior reliability with an average score of 82/100 compared to the Audi A5's 75/100. With only six recalls over nine years and a low owner complaint rate of 0.7 per 10,000 sold, the Lexus IS stands out against the Audi A5, which has faced 16 recalls and a higher complaint rate of 2.9 per 10,000 sold. The Audi A5 also incurs an estimated annual repair cost of $739, which is not specified for the Lexus IS but suggests potential cost advantages for the Lexus. Overall, the Lexus IS is the more reliable choice, particularly due to its lower recall and complaint rates.
Key Differences
- 1Lexus IS has 10 fewer total recalls
- 2Lexus IS scores 7 points higher in reliability
- 3Lexus IS has 2.2 fewer complaints per 10k sold
Category Scoreboard
Audi A5 vs Lexus IS: Which Is More Reliable?
What Are the Common Problems With the Audi A5 and Lexus IS?
The Lexus IS has a relatively low number of total complaints, with issues primarily related to its structure, unidentified problems, and tires, with one tire-related complaint linked to a crash. In contrast, the Audi A5 exhibits a higher volume of complaints, particularly concerning its electrical system, which accounts for over half of its reported issues. Additionally, the A5 has a broader range of problem categories, including steering and vehicle speed control, both of which are critical to safety, with the steering category also having a crash-linked complaint. Overall, while both vehicles have tire-related issues, the Audi A5's significant electrical and safety-related complaints suggest areas of greater concern compared to the Lexus IS.
| Component | Audi A5 | Lexus IS |
|---|---|---|
| ELECTRICAL SYSTEM | 1.5Low | —None |
| UNKNOWN OR OTHER | 0.5Very Low | —None |
| STEERING | 0.1Very Low | —None |
| VEHICLE SPEED CONTROL | 0.1Very Low | —None |
| TIRES | 0.1Very Low | —None |
| BACK OVER PREVENTION | 0.1Very Low | —None |
| ENGINE | 0.1Very Low | —None |
| STRUCTURE | —None | —None |
Complaints per 10,000 units sold, aggregated across all tracked model years from NHTSA owner reports.
Which Is Cheaper to Maintain: Audi A5 or Lexus IS?
How Does Audi A5 vs Lexus IS Reliability Compare by Year?
| Year | Audi A5 | Lexus IS | Edge |
|---|---|---|---|
| 2025 | 77/1000R / 1C | 83/1000R / 1C | Lexus IS |
| 2023 | 81/1000R / 0C | 83/1000R / 9C | Lexus IS |
| 2022 | 74/1003R / 5C | 83/1000R / 13C | Lexus IS |
| 2021 | 71/1005R / 7C | 83/1000R / 1C | Lexus IS |
| 2020 | 70/1005R / 60C | 83/1000R / 3C | Lexus IS |
| 2019 | 73/1003R / 12C | 79/1004R / 8C | Lexus IS |
| 2018 | 77/1000R / 6C | 81/1002R / 6C | Lexus IS |
| 2026(predicted) | 77/100(predicted) | 83/100(predicted) | Lexus IS |
Best years to cross-shop: The 2023 Audi A5 scored 81/100 and the 2025 Lexus IS scored 83/100 — these represent the strongest model years in our tracking range.
Who Should Buy the Audi A5 vs the Lexus IS?
Audi A5 vs Lexus IS: Common Questions
- Is the Audi A5 more reliable than the Lexus IS?
- Based on our data, the Lexus IS is more reliable with an average score of 82/100 compared to 75/100. The difference is modest, so both are reasonable choices.
- Which has more recalls, the Audi A5 or the Lexus IS?
- The Audi A5 has more recalls (16) compared to the Lexus IS (6). More recalls don't always mean worse reliability — some are minor — but it's worth reviewing what each recall covers.
- Which has fewer owner complaints, the Audi A5 or the Lexus IS?
- Adjusted for sales volume, the Lexus IS has a lower complaint rate at 0.7 per 10,000 sold versus 2.9 for the Audi A5. This per-sales normalization gives a fairer comparison than raw totals.
Related Reliability Comparisons
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How We Calculate Reliability Scores
Auto Reliability Index scores are calculated on a 0–100 scale using a weighted formula that combines multiple public data sources. Each factor is weighted based on its predictive value for real-world ownership experience.
Key Ranking Factors
Complaint Severity
NHTSA owner complaints weighted by component category (e.g., powertrain, safety systems, electronics, cosmetic) — safety-critical issues carry more weight than cosmetic ones. Adjusted for sales volume so high-volume models aren't unfairly penalized.
Repair Costs
Independent reliability ratings based on repair frequency, average repair costs, and severity of typical repairs for each model.
Recall Impact
Number of NHTSA recalls weighted by severity. “Stop driving” and fire-risk recalls are penalized more heavily than minor software or labeling recalls.
Issue Diversity
Measures how many major vehicle systems (engine, transmission, electrical, braking, etc.) have recorded complaints. A vehicle with issues spread across many systems may indicate systemic quality issues.
Scores are grouped into four tiers:
- 80–100: Excellent — Top-tier reliability, minimal issues
- 60–79: Good — Reliable with some minor concerns
- 40–59: Mixed — Notable issues, research before buying
- 0–39: Risky — Significant problems, proceed with caution
Data is sourced from NHTSA recall records, owner complaint filings, and independent repair databases. Scores are recalculated as new data becomes available. While the weighting model is proprietary, all underlying data sources are public and traceable.
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