Audi A4 Best and Worst Years (2005–2024)
Avoid Audi A4 model years 2005, 2006, 2008, 2009, and 2020, which carry the highest complaint indexes (79-100) and center on electrical faults and airbag failures. Best years, relative to the rest, are 2011, 2012, 2016, and 2022, with complaint indexes as low as 5 to 21.
Based on NHTSA owner complaints and recalls per model-year, ranked within this model — not a reliability rating. Methodology.
Avoid 2005Avoid 2006Avoid 2008Avoid 2009Avoid 2020Best 2011Best 2012Best 2016Best 2022
- Model years
- 20
- 2005–2024
- NHTSA complaints
- 1,450
- Recall campaigns
- 12
- Crashes reported
- 45
- Fires reported
- 15
- Top problem area
- Electrical System
A4 Complaint Index by year
Higher = more complaints, crashes, fires, injuries, deaths and Do-Not-Drive recalls per year on the road, relative to other years of this model.
Audi A4 problems and recalls by year
| Year | Verdict | Index | Complaints | Crashes | Fires | Recalls | Top issue | MPG | NCAP |
|---|---|---|---|---|---|---|---|---|---|
| 2005 | Avoid | 79 | 219 | 7 | 3 | 3 | Electrical System | 22 | — |
| 2006 | Avoid | 100 | 295 | 8 | 4 | 3 | Electrical System | 22 | — |
| 2007 | Caution | 74 | 196 | 4 | 0 | 3 | Airbags | 22 | — |
| 2008 | Avoid | 84 | 175 | 8 | 1 | 4 | Airbags | 22 | — |
| 2009 | Avoid | 89 | 120 | 6 | 3 | 2 | Engine | 24 | — |
| 2010 | Caution | 68 | 64 | 0 | 0 | 0 | Engine | 25 | — |
| 2011 | Best | 5 | 11 | 0 | 0 | 0 | Engine | 25 | 4★ |
| 2012 | Best | 21 | 19 | 0 | 1 | 0 | Engine | 25 | 4★ |
| 2013 | Good | 37 | 24 | 1 | 2 | 0 | Steering | 25 | 5★ |
| 2014 | Good | 26 | 32 | 0 | 0 | 0 | Engine | 26 | 5★ |
| 2015 | Good | 32 | 19 | 1 | 0 | 0 | Engine | 26 | 5★ |
| 2016 | Best | 16 | 11 | 0 | 1 | 0 | Engine | 26 | 5★ |
| 2017 | Caution | 63 | 55 | 2 | 0 | 1 | Engine | 27.5 | 5★ |
| 2018 | Caution | 58 | 44 | 1 | 0 | 1 | Electrical System | 27 | 5★ |
| 2019 | Good | 42 | 10 | 2 | 0 | 1 | Electrical System | 28.5 | — |
| 2020 | Avoid | 95 | 127 | 1 | 0 | 3 | Electrical System | 28.5 | 5★ |
| 2021 | Caution | 53 | 11 | 3 | 0 | 4 | Electrical System | 27.5 | 5★ |
| 2022 | Best | 11 | 6 | 0 | 0 | 3 | Engine | 28 | — |
| 2023 | Good | 47 | 10 | 1 | 0 | 0 | Engine | 27.5 | — |
| 2024 | No verdict | 0 | 2 | 0 | 0 | 0 | Airbags | 28.5 | 5★ |
A4 years to avoid: what went wrong
2006 Audi A4 Index 100 · 295 complaints · 3 recalls
The 2006 A4 carries the worst complaint index of the whole model, 100, ranking 1st worst of 20 years. Electrical System issues make up 56% of complaints with a median failure mileage of 56,250. Owners described engine bay fires with smoke and explosions, plus a case of the car rolling on a hill with the parking brake engaged. Airbag complaints (25% share) showed failures around a much higher median of 98,500 miles. Three recall campaigns target airbag inflators and control units for this year.
2006 electrical system problems →2006 airbags problems →2006 engine problems →
2020 Audi A4 Index 95 · 127 complaints · 3 recalls
The 2020 A4 has a complaint index of 95, ranking 2nd worst. Electrical System complaints dominate at 72% share with a median failure mileage of 54,000, including SOS emergency call and MMI infotainment systems failing entirely. Collision Avoidance & Cameras complaints add another 37% share, with owners describing the infotainment system restarting repeatedly while driving, disabling the backup camera and parking sensors. Three recall campaigns apply to this year, covering suspension lock nuts, seat heating cables, and rear axle wear.
2020 electrical system problems →2020 collision avoidance & cameras problems →
2009 Audi A4 Index 89 · 120 complaints · 2 recalls
The 2009 A4 has a complaint index of 89, ranking 3rd worst. Engine complaints lead at 43% share with a median failure mileage of 77,800, including reports of unintended acceleration and oil leaking from a failed rear main seal. Airbags follow at 28% share with a median failure mileage of 85,000, including a case where the driver airbag did not deploy in a rear-end crash. Two recall campaigns address airbag inflator and control unit corrosion for this year.
2009 engine problems →2009 airbags problems →2009 steering problems →
2008 Audi A4 Index 84 · 175 complaints · 4 recalls
The 2008 A4 has a complaint index of 84, ranking 4th worst. Airbags are the leading problem area at 66% share, with a median failure mileage of 77,000. Owners reported airbags failing to deploy during collisions, including a rollover crash, and a passenger seat heater that burned holes through the seat. Three recall campaigns cover airbag inflator and control unit replacement for this year, none requiring drivers to stop driving immediately.
2008 airbags problems →2008 engine problems →2008 electrical system problems →
2005 Audi A4 Index 79 · 219 complaints · 3 recalls
The 2005 A4 has a complaint index of 79 and ranks 5th worst of 20 model years. Electrical System complaints dominate at 50% share, with a median failure mileage of 59,000. Airbags account for another 25% of complaints, also failing near 59,000 miles. Owners reported airbags that did not deploy in crashes and electrical fires occurring while the car was parked and off. NHTSA lists three recall campaigns for this year, all covering airbag inflator or control unit replacement, none marked do-not-drive.
2005 electrical system problems →2005 airbags problems →2005 engine problems →
Most common Audi A4 problems (all years)
Share of NHTSA complaints by component group across all model years.
- Electrical System458 (32%)
- Airbags420 (29%)
- Engine313 (22%)
- Other137 (9%)
- Transmission & Powertrain89 (6%)
- Fuel System85 (6%)
- Collision Avoidance & Cameras65 (4%)
- Steering61 (4%)
- Suspension, Wheels & Tires41 (3%)
- Structure & Body40 (3%)
A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.
Frequently asked questions
- What Audi A4 years should I avoid?
- Based on NHTSA owner complaints and recalls, the 2005, 2006, 2008, 2009, and 2020 Audi A4 model years are rated Avoid, with complaint indexes ranging from 79 to 100, the highest of the 20 years covered.
- What is the best Audi A4 year to buy?
- Relative to other A4 years, 2011, 2012, 2016, and 2022 are rated Best, with complaint indexes as low as 5, 21, 16, and 11 respectively.
- Why is the 2006 Audi A4 rated so poorly?
- The 2006 A4 has the highest complaint index of any year, 100, and ranks 1st worst of 20 years covered. Electrical System complaints make up 56% of its total, with a median failure mileage of 56,250, including engine bay fires.
- Does the Audi A4 have airbag recalls?
- Yes. NHTSA recalls for airbag inflator or control unit issues cover the 2005, 2006, 2008, and 2009 A4 model years, tied to Airbags complaint shares as high as 66% for 2008.
- How many total complaints does the Audi A4 have on record?
- NHTSA lists 1,450 total complaints across the 2005-2024 Audi A4, with Electrical System (32%) and Airbags (29%) as the top two problem areas overall.