2023 Audi A4 2.0 TDI S Line

Price: £19,355. Fair price: £436 (2%) under the AskCar estimate of £19,791, 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 4 November 2026.

AskCar lists 1,488 used Audi A4 from 972 UK dealerships, as of 4 November 2026.

Overview

  • Make: Audi
  • Model: A4
  • Trim: S Line
  • Version: 2.0 TDI S Line S tronic FWD Euro 6 4dr (160 bhp)
  • Year: 2023
  • Mileage: 43,242 miles
  • Fuel: Diesel
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.0 litres, 160 bhp
  • Gearbox: Automatic (S tronic)
  • Drive: Front-wheel drive
  • Colour: Grey
  • CO2: 137 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 43,242 miles on the clock, this 2023 Audi A4 S Line has done roughly 14,900 more miles than a typical 2023 Audi A4. The AskCar estimate for this car is £19,791. It is priced at £19,355, which is £436 below that estimate. The AskCar estimate draws on 1,427 Audi A4 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 40 days ago. Its asking price has since fallen by £1,152. We checked its advertised mileage against the government's MOT record, and they match. The seller is Prestige Cars Kent, based in Orpington. 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: £436 (2%) under the AskCar estimate of £19,791.

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 2023 Audi A4 with the 2.0 diesel engine is typically advertised at £20,800: the median of the 219 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2023 Audi A4 has been on sale for at least 40 days.

Price history

AskCar first saw this advert on 25 September 2026 at £20,507. Its asking price is now £19,355, £1,152 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

  • 25 September 2026: £20,507
  • 6 October 2026: £20,332
  • 10 October 2026: £20,211
  • 15 October 2026: £20,017
  • 17 October 2026: £19,967
  • 20 October 2026: £19,857
  • 24 October 2026: £19,711
  • 31 October 2026: £19,483
  • 3 November 2026: £19,355

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 6 August 2027.

It has had 5 MOTs. The latest, on 7 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 42,921 miles, which matches the advertised 43,242 miles.

Advertised mileage is about 14,900 miles higher than the median mileage of a 2023 Audi A4 on AskCar.

Similar cars

18 other 2023 Audi A4 S Line 2.0 diesel automatic saloons are for sale at UK dealers, from £19,633 to £31,995, as of 4 November 2026.

The 3 closest to this car in mileage:

  • 2023 Audi A4 S Line, 2.0 diesel saloon, grey. Mileage: 42,529 miles. Price: £19,633, £278 more than this car. Dealer: Oakwood Motor Company in Bury. AskCar page: https://askcar.co.uk/car/audi-a4-2023-5b1bcfe562c2
  • 2023 Audi A4 S Line, 2.0 diesel saloon, grey. Mileage: 38,971 miles. Price: £19,734, £379 more than this car. Dealer: Prestige Cars Kent in Bromley. AskCar page: https://askcar.co.uk/car/audi-a4-2023-538abfadcc7d
  • 2023 Audi A4 S Line, 2.0 diesel saloon, grey. Mileage: 35,636 miles. Price: £19,723, £368 more than this car. Dealer: Carbase Bristol in Bristol. AskCar page: https://askcar.co.uk/car/audi-a4-2023-0d95dbfeb478

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

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Photos

51 photos of this car are on its AskCar page.

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.