2023 Audi A6 Saloon 2.0 TDI S Line

Version: 2.0 TDI 40 S Line S tronic 4WD Euro 6 (s/s) 4dr (201 bhp)

Price: £21,999. Fair price: £797 (3%) under the AskCar estimate of £22,796, our expected asking price for this car from its model, age, mileage and specification, drawing on 850 priced Audi A6 Saloon adverts on AskCar as of 1 November 2026.

AskCar lists 877 used Audi A6 Saloon from 646 UK dealerships, as of 1 November 2026.

Overview

Make
Audi
Model
A6 Saloon
Trim
S Line
Version
2.0 TDI 40 S Line S tronic 4WD Euro 6 (s/s) 4dr (201 bhp)
Mileage
67,136 miles
Year
2023
Fuel type
Diesel
Body type
Saloon
Engine
2.0 L
Gearbox
Automatic
Power
201 bhp
Seats
5
CO2
147 g/km
Colour
Grey
Doors
4
Driven wheels
Four Wheel Drive
Gearbox version
S tronic
Engine badge
TDI
Emissions standard
Euro 6

About this car

At 67,136 miles, this 2023 Audi A6 Saloon S Line has covered about 33,400 more miles than other 2023 Audi A6 Saloon cars. Its asking price of £21,999 is £797 below the AskCar estimate of £22,796. The AskCar estimate uses 850 UK dealer adverts for the Audi A6 Saloon, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. MOT records show an expiry date of 2 March 2027, and the latest recorded mileage is consistent with the advert. The seller is SG Petch Durham, based in Durham.

Stock data as of 1 November 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 1 November 2026.

Recorded asking prices
Date observedAsking price
1 November 2026£21,999

Price and mileage comparison

Fair price: £797 (3%) under the AskCar estimate of £22,796.

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 850 priced Audi A6 Saloon adverts across different ages and specifications, as of 1 November 2026.

Advertised mileage is about 33,400 miles higher than the median mileage of a 2023 Audi A6 Saloon on AskCar.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT: valid until 2 March 2027. 56,277 miles at the last test.

Other matching cars

9 other 2023 Audi A6 Saloon S Line automatic diesel cars are for sale at UK dealers from £19,590 to £29,750, as of 1 November 2026.

The 5 cheapest:

The 9 matching cars have covered 19,518 to 94,900 miles, compared with 67,136 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.

Browse all Audi A6 Saloon cars for sale · 2023 Audi A6 Saloon price guide

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Photos

1 photo of this car is on its AskCar page.

How to contact the dealer and its opening hours are on this AskCar page.

As of 1 November 2026, AskCar lists 578,994 cars and vans from 12,654 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.