The AUDI A4 (2008-12) 5DR AVANT QUATTRO 2.0 TDI CR DPF 170 S LINE is a premium five-door estate, aimed at buyers wanting more space than a saloon without moving to an SUV. In the UK used-car market, it sits among established family and executive estates, competing with BMW 3 Series Touring and Mercedes-Benz C-Class Estate models. Mycarcheck.com records 30 look-ups covering 17 different VINs, a useful snapshot rather than a full picture of every car. Across those checks, the average private-sale valuation was £3,500, average recorded mileage 147,000, annual mileage 7,000, and previous keepers 3.4. Use figures as context when viewing a car. The 170-horsepower diesel and four-wheel drive offer confident, composed progress, while the S line trim adds a sportier look. Its roomy boot and long-distance comfort suit families, commuters and regular travellers; the 7,000-mile sample average suggests modest use, but check service history and condition carefully before buying.