The AUDI A4 (2001-05) 4DR SALOON 2.5 TDI 155 SE MTRON AUTO is a mid-sized executive saloon for buyers seeking a comfortable, smart-looking four-door car. In the UK used market, it competes with BMW 3 Series and Mercedes-Benz C-Class models, and offers a more understated choice for commuting, business travel and family journeys. These figures come from just two mycarcheck.com checks, covering two different cars, so treat them as a small snapshot rather than a market-wide picture. The checks show an average recorded mileage of 120,000 miles, around 4,000 miles driven yearly, and three previous keepers. The average private-sale valuation recorded was £200, a dated-data indicator, not a current price guide. Diesel power and an automatic gearbox suit commuting and longer trips. The A4 appeals to drivers wanting a comfortable used saloon, with understated styling and composed road manners. Check age, service history and condition carefully against newer rivals today.