2009 Audi A4

The 2009 Audi A4 marks a transitional point in its generation, with federal complaint data showing a notable decline from the 298 complaints in 2006 to 142 in 2009, though still elevated compared to the 64 complaints in 2010. Recalls remained steady at 6 for 2009, consistent with 2008 but higher than the zero recalls in 2010 and 2011, suggesting lingering unresolved issues from earlier model years. The sharp rise in TSBs—peaking at 841 in 2009—indicates Audi’s proactive response to emerging problems, particularly in air bags (50 complaints) and engine systems (30 complaints), though the data doesn’t specify root causes. Compared to the post-2010 models, the 2009 A4 sits at the tail end of a high-complaint, high-recall phase, with subsequent years showing marked improvement in reliability. While the 2009’s complaint volume isn’t the worst in its generation, its position in the trend arc—coupled with persistent airbag and engine concerns—suggests higher risk of unresolved defects. **Takeaway: The 2009 A4 is a riskier buy than later model years, and thorough pre-purchase inspection of airbag and engine systems is critical.**