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2021 Audi A4 Reliability & Recall Report

Based on 4 NHTSA recalls and 11 owner complaints. All data sourced from the National Highway Traffic Safety Administration (NHTSA) — free, no signup required.

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This is one of the better years for the Audi A4

The 2021 model year shows below-average complaints compared to other years of this model — a good sign for reliability.

B
75/100

Good Choice — 2021 Audi A4

The 2021 Audi A4 has an acceptable safety and complaint profile with some areas to monitor. Review the open recalls and known problems below before buying.

4
NHTSA Recalls
4 recalls on record
11
Owner Complaints
Filed with NHTSA
3
Crashes + Injuries
In NHTSA complaints

Own or buying a 2021 Audi A4?

Check your specific VIN for open recalls, market value, full specs, and a free AI buyer summary.

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NHTSA Recalls — 2021 Audi A4 (4)

All recalls listed below must be repaired by an authorized Audi dealer at no charge to the owner.

🔧 Unknown Component
NHTSA #21V606000
🔧 Unknown Component
NHTSA #22V034000
🔧 Unknown Component
NHTSA #21V295000
🔧 Unknown Component
NHTSA #22V742000
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Most Common Problems — 2021 Audi A4

Based on 11 owner complaints filed with NHTSA. Bars show relative complaint frequency.

Electrical System
3
Power Train
2
Unknown Or Other
2
Suspension
2
Tires
1
Air Bags
1
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Audi A4 — Complaints by Year

Spike in a year = known problem year. The 2021 model year is highlighted.

2015 43 complaints 2016 24 complaints 2017 81 complaints 2018 27 complaints 2019 5 complaints 2020 124 complaints 2021 11 complaints 2022 0 complaints 2023 0 complaints 2024 2 complaints 2025 0 complaints

⚠ Years to avoid: 2017, 2020 — These model years show significantly elevated complaint activity.

✅ Best model years: 2019, 2021, 2022 — Lowest complaint rates for this model.

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Frequently Asked Questions — 2021 Audi A4

Is the 2021 Audi A4 reliable?
Based on NHTSA data, the 2021 Audi A4 has 4 recalls and 11 owner complaints. This is generally considered a reliable model year.
How many recalls does the 2021 Audi A4 have?
The 2021 Audi A4 has 4 NHTSA recalls. Affected systems include: see recall details above. All recalls are repaired free at authorized dealers.
What are the most common problems with the 2021 Audi A4?
The most commonly reported problems for the 2021 Audi A4 are: Electrical System, Power Train, Unknown Or Other, Suspension. See the complaint breakdown above for full details.
Is the 2021 Audi A4 safe to buy?
The 2021 Audi A4 has some safety and reliability items to review before buying. Ensure all 4 recalls are completed at a dealer. A pre-purchase inspection by an independent mechanic is strongly recommended.
What year Audi A4 should I buy?
Based on NHTSA complaint data, the best years for the Audi A4 are: 2019, 2021, 2022. These show the lowest complaint rates. Years to avoid: 2017, 2020.
Data source: All recall and complaint data is sourced directly from the National Highway Traffic Safety Administration (NHTSA) public API. Data is cached and refreshed every 7 days. Recall and complaint counts reflect data available at the time of last cache update. For the most current recall status on a specific vehicle, enter the VIN above or visit NHTSA.gov/recalls.