2023 Audi A6 Avant 2.0 TDI S Line
Price: £29,749. Fair price: £22 (under 1%) under the AskCar estimate of £29,771, our expected asking price for this car from its model, age, mileage and specification, drawing on 774 priced Audi A6 Avant adverts on AskCar as of 4 November 2026.
AskCar lists 794 used Audi A6 Avant from 586 UK dealerships, as of 4 November 2026.
Overview
- Make: Audi
- Model: A6 Avant
- Trim: S Line
- Version: 2.0 TDI 40 S Line S tronic 4WD Euro 6 (s/s) 5dr (201 bhp)
- Year: 2023
- Mileage: 23,503 miles
- Fuel: Diesel
- Body: Estate, 5 doors, 5 seats
- Engine: 2.0 litres, 201 bhp
- Gearbox: Automatic (S tronic)
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 152 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2023 Audi A6 Avant S Line is advertised with 23,503 miles, approximately 11,300 below the typical mileage for its age. Priced at £29,749, it is advertised £22 below the AskCar estimate of £29,771. The AskCar estimate uses 774 UK dealer adverts for the Audi A6 Avant, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 60 days ago. Its asking price has since fallen by £746. It is for sale at Ballyrobert Mallusk in Newtownabbey. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Fair price: £22 (under 1%) under the AskCar estimate of £29,771.
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 774 priced Audi A6 Avant adverts across different ages and specifications, as of 4 November 2026.
A 2023 Audi A6 Avant with the 2.0 diesel engine is typically advertised at £25,400: the median of the 97 for sale on AskCar, as of 4 November 2026.
Time on sale
This 2023 Audi A6 Avant has been on sale for at least 60 days.
Price history
AskCar first saw this advert on 5 September 2026 at £30,495. Its asking price is now £29,749, £746 less. The latest price cut was seen on 3 November 2026.
Price changes recorded:
- 5 September 2026: £30,495
- 3 November 2026: £29,749
Mileage and MOT
Advertised mileage is about 11,300 miles lower than the median mileage of a 2023 Audi A6 Avant on AskCar.
Similar cars
7 other 2023 Audi A6 Avant S Line 2.0 diesel automatic estates are for sale at UK dealers, from £21,990 to £29,750, as of 4 November 2026.
The 3 closest to this car in mileage:
- 2023 Audi A6 Avant S Line, 2.0 diesel estate, grey. Mileage: 23,503 miles. Price: £29,750, the same price as this car. Dealer: Ballyrobert Mallusk in Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-d91940c40f87
- 2023 Audi A6 Avant S Line, 2.0 diesel estate, black. Mileage: 24,403 miles. Price: £28,595, £1,154 less than this car. Dealer: Wynyard Motor Company in Stockton-on-Tees. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-f56bc567d39f
- 2023 Audi A6 Avant S Line, 2.0 diesel estate, grey. Mileage: 22,201 miles. Price: £29,500, £249 less than this car. Dealer: Sytner Select Swindon in Swindon. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-78017b459917
Browse all Audi A6 Avant cars for sale · 2023 Audi A6 Avant price guide
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Photos
15 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.