2023 Audi A8 3.0 TDI V6 S Line

Price: £35,900. Fair price: £2,763 (7%) under the AskCar estimate of £38,663, our expected asking price for this car from its model, age, mileage and specification, drawing on 219 priced Audi A8 adverts on AskCar as of 4 November 2026.

AskCar lists 229 used Audi A8 from 195 UK dealerships, as of 4 November 2026.

Overview

  • Make: Audi
  • Model: A8
  • Trim: S Line
  • Version: 3.0 TDI V6 50 S Line Tiptronic 4WD Euro 6 (s/s) 4dr (282 bhp)
  • Year: 2023
  • Mileage: 34,611 miles
  • Fuel: Diesel
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 3.0 litres, 282 bhp
  • Gearbox: Automatic (Tiptronic)
  • Drive: Four-wheel drive
  • Colour: Grey
  • CO2: 189 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

At 34,611 miles, this 2023 Audi A8 S Line has covered about 5,300 more miles than other 2023 Audi A8 cars. The dealer is asking £35,900, which is £2,763 below the AskCar estimate of £38,663. To work out the AskCar estimate, we analyse UK dealer adverts for 219 Audi A8 cars across different ages and specifications. This car was first seen in our listings data 12 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Marshall Motor Group Maidstone Audi, based in Maidstone. 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: £2,763 (7%) under the AskCar estimate of £38,663.

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 219 priced Audi A8 adverts across different ages and specifications, as of 4 November 2026.

A 2023 Audi A8 with the 3.0 diesel engine is typically advertised at £35,900: the median of the 20 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2023 Audi A8 has been on sale for at least 12 days.

Price history

AskCar first saw this advert on 23 October 2026 at £35,500. Its asking price is now £35,900, £400 more.

Price changes recorded:

  • 23 October 2026: £35,500
  • 28 October 2026: £35,900

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 21 March 2027.

It has had one MOT, on 9 March 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 30,104 miles, which matches the advertised 34,611 miles.

Advertised mileage is about 5,300 miles higher than the median mileage of a 2023 Audi A8 on AskCar.

Similar cars

3 other 2023 Audi A8 S Line 3.0 diesel automatic saloons are for sale at UK dealers, from £36,195 to £54,169, as of 4 November 2026.

The 3 closest to this car in mileage:

  • 2023 Audi A8 S Line, 3.0 diesel saloon, black. Mileage: 35,622 miles. Price: £36,195, £295 more than this car. Dealer: Group 1 Automotive Whetstone Audi in Whetstone. AskCar page: https://askcar.co.uk/car/audi-a8-2023-109221d1c962
  • 2023 Audi A8 S Line, 3.0 diesel saloon, black. Mileage: 26,319 miles. Price: £39,000, £3,100 more than this car. Dealer: Sytner Group North Wales Audi in Conwy. AskCar page: https://askcar.co.uk/car/audi-a8-2023-0b7a51e27a4b
  • 2023 Audi A8 S Line, 3.0 diesel saloon, black. Mileage: 2,950 miles. Price: £54,169, £18,269 more than this car. Dealer: Drift Bridge Walton Audi in Walton-on-Thames. AskCar page: https://askcar.co.uk/car/audi-a8-2023-426c2765d915

Browse all Audi A8 cars for sale · 2023 Audi A8 price guide

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Photos

41 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.