The median 2009 Audi A4 in the Canadian market sits at $9,800. That's your anchor number. If a car is priced right around there with reasonable kilometres, you're paying a fair market rate, not overpaying and not stumbling onto a steal.
The typical range runs from $4,499 to $11,888. That's a wide spread, and the reason is mostly condition and history at this age. Cars near the bottom of that band are usually higher-mileage, rougher, or carrying deferred maintenance. The ones pushing toward $11,888 tend to be cleaner examples with records to back it up.
What to actually pay
Median kilometres for this year land at about 163,000 km. So when you see a listing, judge it against that. A car at $9,800 with 160,000-ish km is textbook average. Fewer kilometres than that at the same price is worth a closer look. More kilometres and a price near the top of the range, and you'd want a real reason for the premium.
My take on a car this age: the price tag matters less than the paperwork behind it. Two 2009 A4s can both ask $9,800 and be worth wildly different money once you see the service history. Get a pre-purchase inspection before you commit. Anything under roughly $6,000 is priced for a reason, and the reason is usually in the maintenance you'll inherit.
Numbers reflect live listings across Canada over the last 90 days, filtered for outliers. Data as of . Prices in CAD.