2021 Audi A4 2.0 TFSI S Line
Price: £16,490. Fair price: £94 (under 1%) over the AskCar estimate of £16,396, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,427 priced Audi A4 adverts on AskCar as of 5 November 2026.
AskCar lists 1,489 used Audi A4 from 965 UK dealerships, as of 5 November 2026.
Overview
- Make: Audi
- Model: A4
- Trim: S Line
- Version: 2.0 TFSI 35 S Line Manual FWD Euro 6 (s/s) 4dr (148 bhp)
- Year: 2021
- Mileage: 41,966 miles
- Fuel: Petrol
- Body: Saloon, 4 doors, 5 seats
- Engine: 2.0 litres, 148 bhp
- Gearbox: Manual
- Drive: Front-wheel drive
- Colour: Black
- CO2: 137 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 41,966 miles on the clock, this 2021 Audi A4 S Line has done roughly 8,200 fewer miles than a typical 2021 Audi A4. The AskCar estimate for this car is £16,396. It is priced at £16,490, which is £94 above that estimate. The AskCar estimate uses 1,427 UK dealer adverts for the Audi A4, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 161 days ago. Its asking price has since fallen by £1,009. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Bridgend Motor Group in Leeds. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £94 (under 1%) over the AskCar estimate of £16,396.
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 5 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 5 November 2026.
Time on sale
This 2021 Audi A4 has been on sale for at least 161 days.
Price history
AskCar first saw this advert on 28 May 2026 at £17,499. Its asking price is now £16,490, £1,009 less. The latest price cut was seen on 16 October 2026.
Price changes recorded:
- 28 May 2026: £17,499
- 9 July 2026: £17,492
- 4 September 2026: £16,999
- 16 October 2026: £16,490
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 1 July 2027.
It has had 3 MOTs. The latest, on 12 June 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 41,991 miles, which matches the advertised 41,966 miles.
Advertised mileage is about 8,200 miles lower than the median mileage of a 2021 Audi A4 on AskCar.
Similar cars
2 other 2021 Audi A4 S Line 2.0 petrol manual saloons are for sale at UK dealers, from £15,980 to £16,528, as of 5 November 2026.
The 2 closest to this car in mileage:
- 2021 Audi A4 S Line, 2.0 petrol saloon, white. Mileage: 44,966 miles. Price: £15,980, £510 less than this car. Dealer: Sandicliffe Ford Loughborough in Loughborough. AskCar page: https://askcar.co.uk/car/audi-a4-2021-fee3496a3008
- 2021 Audi A4 S Line, 2.0 petrol saloon, white. Mileage: 36,000 miles. Price: £16,528, the same price as this car. Dealer: Peoples Liverpool Speke in Speke. AskCar page: https://askcar.co.uk/car/audi-a4-2021-f48ad95a562a
Browse all Audi A4 cars for sale · 2021 Audi A4 price guide
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Photos
25 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.