2021 Audi A4 Avant 2.0 TDI S Line

Overview

• Make: Audi
• Model: A4 Avant
• Trim: S Line
• Version: 2.0 TDI S Line S tronic FWD Euro 6 5dr (160 bhp)
• Year: 2021
• Mileage: 89,277 miles
• Fuel: Diesel, mild hybrid
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 160 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 140 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 89,277 miles on the clock, this 2021 Audi A4 Avant S Line has done roughly 29,600 more miles than a typical 2021 Audi A4 Avant. The AskCar estimate and the asking price are both £14,999. To work out the AskCar estimate, we analyse UK dealer adverts for 1,232 Audi A4 Avant cars across different ages and specifications. We first recorded this car for sale 5 days ago. The government's MOT record matches its advertised mileage. You can find this car at cinch Bellevue in Hart. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: the same as the AskCar estimate of £14,999.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 1,232 priced Audi A4 Avant adverts across different ages and specifications, as of 4 November 2026.

A 2021 Audi A4 Avant with the 2.0 diesel engine is typically advertised at £18,500: the median of the 95 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2021 Audi A4 Avant advertised 5 days ago. About 4 in 10 of 2021 Audi A4 Avant cars are gone from sale within a month of being advertised: 48 of the 109 first advertised between 11 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 30 October 2026 at £14,999. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 26 October 2027.

It has had 4 MOTs. The latest, on 27 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 89,276 miles, which matches the advertised 89,277 miles.

Advertised mileage is about 29,600 miles higher than the median mileage of a 2021 Audi A4 Avant on AskCar.

Similar cars

18 other 2021 Audi A4 Avant S Line 2.0 diesel automatic estates are for sale at UK dealers, from £8,999 to £22,000, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A4 Avant S Line, 2.0 diesel estate, black. Mileage: 89,437 miles. Price: £18,500, £3,501 more than this car. Dealer: Jack Reid Cars in Carrickfergus. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-072c4c412b54
• 2021 Audi A4 Avant S Line, 2.0 diesel estate, blue. Mileage: 90,002 miles. Price: £14,800, £199 less than this car. Dealer: Marshall Volkswagen Newbury in Newbury. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-90de791d49fe
• 2021 Audi A4 Avant S Line, 2.0 diesel estate, grey. Mileage: 82,481 miles. Price: £16,495, £1,496 more than this car. Dealer: Edinburgh Car Sales in Edinburgh. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-ae9e93329907

• The nearest: 2021 Audi A4 Avant S Line, 2.0 diesel estate, black, 3 miles from this car. Mileage: 42,000 miles. Price: £20,290, £5,291 more than this car. Dealer: Stratus in Basingstoke. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-5c4e0c48c174