Last updated: 2026-03-15
Audi A4 Reliability by Year
The Audi A4 averages 73/100 across 6 model years, rated good.
Audi A4 Reliability Overview
The Audi A4, evaluated across multiple model years, maintains a Good reliability rating with an average score of 73/100, though specific years like 2020 saw higher complaint rates, particularly concerning the electrical system and MMI issues. Repair costs for the A4 align with the luxury midsize car segment average at $739 annually, and recent models show improvement, with the 2025 model year having no recorded complaints. This vehicle is best suited for those prioritizing a balance of performance and reliability, with attention to potential electronic system concerns in earlier years.
Current generation: 1st gen (1995–2001), facelifted 1999.
Best & Worst Audi A4 Years
Comprehensive reliability analysis based on NHTSA data, owner complaints, and historical performance.
Best Audi A4 Years to Buy
Based on reliability index scoreThe best Audi A4 year is 2025 with a reliability score of 81/100, rated excellent. Other strong picks include 2023 (77/100) and 2022 (72/100).
Audi A4 Years to Avoid
The worst Audi A4 year is 2020 with a score of 65/100, primarily due to electrical system (89) issues.
Audi A4 Reliability Score Trend
Audi A4 reliability has improved in recent years, with newer models scoring an average of 77/100 compared to 69/100 for older years.
Scores 0–100. Higher is better.
| Year | Score | Rating |
|---|---|---|
| 2018 | 71/100 | Good |
| 2020 | 65/100 | Good |
| 2021 | 71/100 | Good |
| 2022 | 72/100 | Good |
| 2023 | 77/100 | Good |
| 2025 | 81/100 | Excellent |
Year-by-Year Reliability
2025 Audi A4
0 recalls · 0 complaints
The 2025 Audi A4 has excellent reliability. There are 0 recalls and 0 owner complaints on file for the 2025 Audi A4.
2023 Audi A4
0 recalls · 8 complaints
The 2023 Audi A4 has good reliability. There are 0 recalls and 8 owner complaints on file for the 2023 Audi A4. Severity signals include 1 crash-related complaint. The most commonly reported problem areas are: Electrical System (3), Back Over Prevention (1), Wheels (1).
2022 Audi A4
4 recalls · 3 complaints
The 2022 Audi A4 has good reliability. There are 4 recalls and 3 owner complaints on file for the 2022 Audi A4. The most commonly reported problem areas are: Unknown Or Other (2), Equipment (1).
2021 Audi A4
5 recalls · 12 complaints
The 2021 Audi A4 has good reliability. There are 5 recalls and 12 owner complaints on file for the 2021 Audi A4. Severity signals include 3 crash-related complaints. The most commonly reported problem areas are: Electrical System (3), Power Train (2), Unknown Or Other (2).
2020 Audi A4
3 recalls · 122 complaints
The 2020 Audi A4 has good reliability. There are 3 recalls and 122 owner complaints on file for the 2020 Audi A4. Severity signals include 1 crash-related complaint. The most commonly reported problem areas are: Electrical System (89), Unknown Or Other (28), Back Over Prevention (3).
2018 Audi A4
4 recalls · 35 complaints
The 2018 Audi A4 has good reliability. There are 4 recalls and 35 owner complaints on file for the 2018 Audi A4. Severity signals include 4 crash-related complaints. The most commonly reported problem areas are: Unknown Or Other (8), Electrical System (6), Air Bags (6).
Found Your Audi A4? Check Its History
Every Audi A4 has a different past. Before you buy, a VIN check reveals hidden accidents, title problems, and open recalls.
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Audi A4 Repair Costs
Reliability Rating
3.5/5
Annual Repair Cost
$739
Repair Frequency
0.4/yr
Major Repair Risk
13%
Matches the luxury midsize cars average of $739/yr.
Ranked #14 of 31 among luxury midsize cars.
Audi A4 Years to Avoid
See which model years have the most problems
Most Reliable Audi Models
Compare all Audi models by reliability
Compare Audi A4 With Similar Sedans
The Audi A4 competes with other midsize sedans such as Mercedes-Benz C-Class, BMW 4-Series, and Lexus IS.
Mercedes-Benz C-Class reliability
8 years tracked · 2186 complaints
BMW 4-Series reliability
9 years tracked · 579 complaints
Lexus IS reliability
9 years tracked · 44 complaints
BMW 5-Series reliability
8 years tracked · 330 complaints
Mercedes-Benz E-Class reliability
8 years tracked · 469 complaints
Frequently Asked Questions
- Is the Audi A4 reliable?
- The Audi A4 has good reliability with an average score of 73/100. Some model years are stronger than others — check individual years before buying.
- What is the best year for the Audi A4?
- The best year for the Audi A4 is 2025 with a reliability score of 81/100, rated excellent. It has 0 recalls and 0 owner complaints on record. See full 2025 Audi A4 analysis →
- What are the Audi A4 years to avoid?
- The Audi A4 years to avoid include 2020 (65/100). These model years score significantly below the model average due to higher recall and complaint volumes. See the full years-to-avoid analysis for details. See full years-to-avoid analysis →
- How much does it cost to maintain a Audi A4?
- The Audi A4 has an estimated annual repair cost of $739, which matches the luxury midsize cars average. This includes both scheduled maintenance and unscheduled repairs based on independent repair data.
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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