Audi A4 reliability: common problems by model year

Across 23 model years, the Audi A4 has 5,090 owner-filed NHTSA complaints and 66 recalls on record. The most-reported areas are air bags and electrical system. 2007 drew the most complaints (673), 2019 the fewest (8).

Source: NHTSA complaints and recalls filed for Audi A4 vehicles (US, public record). Typical used asking price $10,061–$18,889.

Which A4 years have the most problems?

Complaint volume by model year. Raw NHTSA totals, not adjusted for sales volume or time on the road, so older and higher-selling years accumulate more. Every year links to its full breakdown.

Highest: 2007 (673 complaints). Lowest: 2019 (8).

Where owners report problems

What owners say

Sentiment is sharply divided by generation and is heavily dependent on diligent maintenance. The B9 generation (model years approximately 2017-2023) receives a generally positive to mixed assessment, with owners praising its refined driving dynamics, comfortab

• B8/B8.5 Generation (2008-2016) 2.0T:*
• Excessive oil consumption – very frequent.
• Timing chain tensioner/guide failure leading to catastrophic engine damage – very frequent.
• Water pump and thermostat housing failure – very frequent.
• High-pressure fuel pump (HPFP) cam follower wear – recurrent.

Owner insights cover all generations of the A4. Individual model years are broken down above.

Generations