Audi A4 2021

2021 Audi A4: what owners report

• In the UK Driver Power owner survey for 2024 the A4 placed 46th of 50 cars for reliability, near the bottom of the table.2016–2021
• Corrosion is practically absent on the B9 and uncommon on the B8, and lights and brakes on both generations generally hold up well at inspection, though brake lines on 12–13-year-old B8s are flagged more often than average.2009–2021
• The 2019 facelifted B9 with the 2.0 TDI and the wet-clutch S tronic gearbox is regarded as the most dependable mainstream A4 on the used market.2019–2021