2021 Audi A4 2.0 TFSI S Line

Overview

• Make: Audi
• Model: A4
• Trim: S Line
• Version: 2.0 TFSI 35 S Line S tronic FWD Euro 6 (s/s) 4dr (148 bhp)
• Year: 2021
• Mileage: 72,259 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 154 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 72,259 miles on the clock, this 2021 Audi A4 S Line has done roughly 22,100 more miles than a typical 2021 Audi A4. Priced at £15,000, it is advertised £708 above the AskCar estimate of £14,292. The AskCar estimate uses UK dealer asking prices, including 1,427 Audi A4 adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 3 days. The government's MOT record matches its advertised mileage. It is advertised by Fusion Motors in Grays. 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: £708 (4%) over the AskCar estimate of £14,292.

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 1,427 priced Audi A4 adverts across different ages and specifications, as of 4 November 2026.

A 2021 Audi A4 with the 2.0 petrol engine is typically advertised at £17,100: the median of the 95 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2021 Audi A4 advertised 3 days ago. About half of 2021 Audi A4 cars are gone from sale within a month of being advertised: 58 of the 123 first advertised between 11 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 1 November 2026 at £15,000. 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 24 March 2027.

It has had 4 MOTs. The latest, on 23 March 2026, passed.

Advisories at the latest test: nearside rear tyre slightly damaged; offside rear tyre slightly damaged.

Mileage at that test: 63,456 miles, which matches the advertised 72,259 miles.

Advertised mileage is about 22,100 miles higher than the median mileage of a 2021 Audi A4 on AskCar.

Similar cars

6 other 2021 Audi A4 S Line 2.0 petrol automatic saloons are for sale at UK dealers, from £17,100 to £21,745, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A4 S Line, 2.0 petrol saloon, blue. Mileage: 48,709 miles. Price: £17,498, £2,498 more than this car. Dealer: Arnold Clark Lenzie Vauxhall in Lenzie. AskCar page: https://askcar.co.uk/car/audi-a4-2021-baed951e7b4c
• 2021 Audi A4 S Line, 2.0 petrol saloon, black. Mileage: 47,400 miles. Price: £17,490, £2,490 more than this car. Dealer: Stow Car Company in Chelmsford. AskCar page: https://askcar.co.uk/car/audi-a4-2021-16627277c0b6
• 2021 Audi A4 S Line, 2.0 petrol saloon, white. Mileage: 33,568 miles. Price: £19,999, £4,999 more than this car. Dealer: Bridgend Motor Group in Gateshead. AskCar page: https://askcar.co.uk/car/audi-a4-2021-3dc8fc35c99a

• The nearest: 2021 Audi A4 S Line, 2.0 petrol saloon, grey, 16 miles from this car. Mileage: 15,297 miles. Price: £21,745, £6,745 more than this car. Dealer: Group 1 Automotive Chingford Audi in Chingford. AskCar page: https://askcar.co.uk/car/audi-a4-2021-e9f0be540ded