Last updated: 2026-10-10
Audi A4 Reliability by Year
Audi A4 used-buyer guide: a good reliability standing, 2023 as the pick, and 2020 to skip because of MMI screen reboots.
Audi A4 Reliability Overview
Reliability is good and repair costs match other luxury midsize cars, so the A4 is a sound used buy if you pick the right year. Favor 2023 and skip 2020, when the MMI screen rebooted on its own and took out the backup camera and parking sensors. Electrical trouble is the main complaint, so test the screen and camera before buying.
Current generation: 1st gen (1995–2001), facelifted 1999.
Best & Worst Audi A4 Years
Best Audi A4 Years to Buy
Based on reliability index scoreThe 2023 model has no recalls and only 8 owner complaints, against 122 for 2020. Its complaints are few and spread across different areas. It has also been on the road long enough to judge, unlike 2025. A few owners report the car shutting off while driving, so ask about service history.
Audi A4 Years to Avoid
Owners filed 122 complaints, far more than any other year tracked, mostly about the MMI screen going black and rebooting by itself, sometimes every minute or two. Each reboot drops the backup camera, parking sensors, and navigation. Dealers often find no fault codes, and replacing the MMI unit has not always stopped it.
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
Ranks first of six scored years with no complaints or recalls on file, though that clean record reflects limited time on the road.
2023 Audi A4
0 recalls · 8 complaints
Final year of the B9 generation, with no recalls and standing above other 2023 sedans, though owners report sudden shutdowns while driving.
2022 Audi A4
4 recalls · 3 complaints
Middle of the pack among A4 years, with few owner complaints but four recalls, fewer than 2021's five and more than 2023's none.
2021 Audi A4
5 recalls · 12 complaints
Close to average among 2021 sedans but among the weaker A4 years, with instrument cluster blackouts and five federal recalls as the main concerns.
2020 Audi A4
3 recalls · 122 complaints
Weakest of the six scored A4 years, mainly because the MMI screen reboots and drops the backup camera, though its standing is still good.
2018 Audi A4
4 recalls · 35 complaints
A mid-ranked A4 year with good reliability and a 5-star crash rating, held back by airbag recall repair delays and AWD clutch complaints.
Found Your Audi A4? Check Its History
Electrical system (3) problems come up most in Audi A4 owner complaints, and 16 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 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 Volvo S60, BMW 3 Series, and Mercedes-Benz C-Class.
A4 vs Volvo S60
6 years tracked · 65 complaints
A4 vs BMW 3 Series
9 years tracked · 183 complaints
A4 vs Mercedes-Benz C-Class
8 years tracked · 2186 complaints
A4 vs BMW 4 Series
9 years tracked · 579 complaints
A4 vs Mercedes-Benz A-Class
7 years tracked · 146 complaints
More Audi A4 comparisons
Frequently Asked Questions
- Is the Audi A4 reliable?
- Yes, for the most part. Its reliability standing is good and close to average among sedans on the site. Most trouble is electrical, such as the backup camera cutting out or the MMI screen rebooting, and it clusters in certain model years rather than spreading across all of them.
- What is the best year for the Audi A4?
- The 2023 model is the best pick. It has no recalls and few owner complaints, and it has been on the road long enough to trust that record. The 2025 model shows no complaints, but it is too new to judge fairly.
- What are the most common Audi A4 problems?
- Electrical faults lead by a wide margin. Owners describe the backup camera failing to come on in reverse, the camera shutting off mid-maneuver, and safety systems acting on their own. One dealer traced a camera fault to wiring pinched by the trunk mechanism.
- How much does it cost to repair an Audi A4?
- Independent repair-cost data puts the estimated yearly cost at $739. That matches the average for luxury midsize cars, so the A4 is not unusually costly to keep. Out-of-warranty all-wheel-drive repairs can run far higher.
- Does the Audi A4 have all-wheel-drive problems?
- Some owners report them, though the count is small. A failing AWD clutch causes heavy vibration or thumping when pulling away with the wheels turned. One owner paid $4,308.85 after the warranty ran out, at under 48,000 miles, and the dealer tied it to a service bulletin.
How we score the Audi A4
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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