The AUDI A4 (2001-05) 5DR AVANT 2.5 TDI 155 SE MTRON AUTO is a premium mid-sized estate, offering more luggage space than the A4 saloon while remaining easier to park than a large family car. In the UK used market, it sits among established alternatives such as the BMW 3 Series Touring and Volvo V40, appealing to buyers wanting an upmarket, practical diesel. With a 155-horsepower diesel engine and automatic gearbox, this Avant is suited to family journeys, commuting and carrying bulky everyday loads. Its comfortable cabin, useful estate shape and relaxed long-distance character are key attractions; the V6 diesel also gives stronger performance than many ordinary family estates, though age and running costs deserve consideration. Mycarcheck.com has recorded six checks across five VINs: average mileage was 169,000, annual use 5,000 miles, and previous keepers about six. The £300 average private-sale figure is indicative only, given the small number of checks.