Last updated: 2026-03-28
Audi A5 vs BMW I4: Reliability Compared
Audi A5
BMW I4
Choosing between the Audi A5 and the BMW I4? 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 Audi A5 currently leads with an average score of 76/100 compared to 74/100. Scroll down for the full year-by-year breakdown, common problem areas, and repair cost comparison.
Verdict
The Audi A5 is more reliable than the BMW I4, scoring 76/100 vs 74/100.
Key Differences
- 1Audi A5 scores 2 points higher in reliability
- 2Audi A5 has 2 fewer total recalls
- 3Audi A5 has 0.2 fewer complaints per 10k sold
Category Scoreboard
Audi A5 vs BMW I4: Which Is More Reliable?
What Are the Common Problems With the Audi A5 and BMW I4?
| Component | Audi A5 | BMW I4 |
|---|---|---|
| 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 |
Complaints per 10,000 units sold, aggregated across all tracked model years from NHTSA owner reports.
How Does Audi A5 vs BMW I4 Reliability Compare by Year?
| Year | Audi A5 | BMW I4 | Edge |
|---|---|---|---|
| 2023 | 81/1000R / 0C | 73/1007R / 40C | Audi A5 |
| 2022 | 74/1003R / 5C | 72/1008R / 9C | Audi A5 |
Best years to cross-shop: The 2023 Audi A5 scored 81/100 and the 2023 BMW I4 scored 73/100 — these represent the strongest model years in our tracking range.
Audi A5 vs BMW I4: Common Questions
- Is the Audi A5 more reliable than the BMW I4?
- Based on our data, the Audi A5 is more reliable with an average score of 76/100 compared to 74/100. The difference is modest, so both are reasonable choices.
- Which has more recalls, the Audi A5 or the BMW I4?
- The BMW I4 has more recalls (18) compared to the Audi A5 (16). 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 BMW I4?
- Adjusted for sales volume, the Audi A5 has a lower complaint rate at 2.9 per 10,000 sold versus 3.1 for the BMW I4. This per-sales normalization gives a fairer comparison than raw totals.
Related Reliability Comparisons
More Audi A5 comparisons
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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