2023 Audi A4 2.0 TFSI S Line

Price: £19,995. Fair price: £1,121 (5%) under the AskCar estimate of £21,116, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,428 priced Audi A4 adverts on AskCar as of 2 November 2026.

AskCar lists 1,493 used Audi A4 from 984 UK dealerships, as of 2 November 2026.

Overview

  • Make: Audi
  • Model: A4
  • Trim: S Line
  • Version: 2.0 TFSI S Line Auto FWD Euro 6 4dr
  • Year: 2023
  • Mileage: 31,288 miles
  • Fuel: Petrol
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.0 litres
  • Gearbox: Automatic
  • Drive: Front-wheel drive
  • Colour: Green
  • CO2: 154 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A4 S Line is advertised with 31,288 miles, approximately 2,600 above the typical mileage for its age. The dealer is asking £19,995, which is £1,121 below the AskCar estimate of £21,116. To work out the AskCar estimate, we analyse UK dealer adverts for 1,428 Audi A4 cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 158 days, and its asking price has been cut by £3,000. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Roadside Motors Edwin May Ballymena in Mid and East Antrim. 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: £1,121 (5%) under the AskCar estimate of £21,116.

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 1,428 priced Audi A4 adverts across different ages and specifications, as of 2 November 2026.

A 2023 Audi A4 with the 2.0 petrol engine is typically advertised at £20,900: the median of the 206 for sale on AskCar, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2023 Audi A4 has been on sale for at least 158 days, and its asking price has been cut by £3,000. About half of 2023 Audi A4 cars are gone from sale within a month of being advertised: 123 of the 240 first advertised between 8 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 28 May 2026 at £22,995. Its asking price is now £19,995, £3,000 less. The latest price cut was seen on 9 October 2026.

Price changes recorded:

  • 28 May 2026: £22,995
  • 2 June 2026: £21,995
  • 19 July 2026: £20,995
  • 9 October 2026: £19,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 9 December 2026.

It has had one MOT, on 10 December 2025, and passed.

There were no advisories at the latest test.

Mileage at that test: 30,568 miles, which matches the advertised 31,288 miles.

Advertised mileage is about 2,600 miles higher than the median mileage of a 2023 Audi A4 on AskCar.

Similar cars

82 other 2023 Audi A4 S Line 2.0 petrol automatic saloons are for sale at UK dealers, from £14,300 to £22,999, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2023 Audi A4 S Line, 2.0 petrol saloon, grey. Mileage: 31,363 miles. Price: £20,498, £503 more than this car. Dealer: Arnold Clark Linwood Vauxhall / Jeep / Alfa Romeo in Linwood. AskCar page: https://askcar.co.uk/car/audi-a4-2023-52891c83aa7d
  • 2023 Audi A4 S Line, 2.0 petrol saloon, white. Mileage: 31,615 miles. Price: £21,298, £1,303 more than this car. Dealer: Arnold Clark Derby Motorstore in Derby. AskCar page: https://askcar.co.uk/car/audi-a4-2023-e741c5f1dfbf
  • 2023 Audi A4 S Line, 2.0 petrol saloon, black. Mileage: 30,834 miles. Price: £20,459, £464 more than this car. Dealer: Drift Bridge Walton Audi in Walton-on-Thames. AskCar page: https://askcar.co.uk/car/audi-a4-2023-7b57c0459713
  • The nearest: 2023 Audi A4 S Line, 2.0 petrol saloon, white, 39 miles from this car. Mileage: 35,240 miles. Price: £21,990, £1,995 more than this car. Dealer: Roadside Motors Armagh in Armagh. AskCar page: https://askcar.co.uk/car/audi-a4-2023-d9aea4f92188

Browse all Audi A4 cars for sale · 2023 Audi A4 price guide

More like this

Photos

16 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.