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: 60,608 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: Black
• CO2: 142 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A4 Avant S Line is advertised with 60,608 miles on the clock. The AskCar estimate for this car is £18,555. It is priced at £18,149, which is £406 below that estimate. The AskCar estimate uses UK dealer asking prices, including 1,202 Audi A4 Avant adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 145 days ago. Its asking price has since fallen by £976. The latest recorded MOT expiry date is 1 July 2026, which has passed. Confirm its status with the dealer. The government's MOT record matches its advertised mileage. You can find this car at Second Chance Car Finance in Wetherby. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £406 (2%) under the AskCar estimate of £18,555.

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 1,202 priced Audi A4 Avant adverts across different ages and specifications, as of 2 November 2026.

A 2021 Audi A4 Avant with the 2.0 diesel engine is typically advertised at £18,500: the median of the 93 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 Audi A4 Avant has been on sale for at least 145 days.

Price history

AskCar first saw this advert on 10 June 2026 at £19,125. Its asking price is now £18,149, £976 less. The latest price cut was seen on 14 October 2026.

Price changes recorded:

• 26 June 2026: £19,125
• 10 July 2026: £18,725
• 31 August 2026: £18,425
• 14 October 2026: £18,149

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 1 July 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 6 June 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 58,035 miles, which matches the advertised 60,608 miles.

Advertised mileage is about 900 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 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A4 Avant S Line, 2.0 diesel estate, white. Mileage: 60,000 miles. Price: £18,107, the same price as this car. Dealer: David Hayton Autostore Penrith in Penrith. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-301c53af4bae
• 2021 Audi A4 Avant S Line, 2.0 diesel estate, black. Mileage: 65,309 miles. Price: £17,998, £151 less than this car. Dealer: Arnold Clark Glasgow BMW in Glasgow. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-fa0ba6af319d
• 2021 Audi A4 Avant S Line, 2.0 diesel estate, white. Mileage: 54,820 miles. Price: £17,995, £154 less than this car. Dealer: P W Millar Ford in Barry. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-a5badf95220c

• The nearest: 2021 Audi A4 Avant S Line, 2.0 diesel estate, black, 48 miles from this car. Mileage: 108,000 miles. Price: £13,995, £4,154 less than this car. Dealer: Enzo Cars & Vans in Blackburn. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-8873dff9afb5