2023 Audi A6 Avant 2.0 TDI S Line

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: 30,361 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

With 30,361 miles on the clock, this 2023 Audi A6 Avant S Line has done roughly 4,200 fewer miles than a typical 2023 Audi A6 Avant. Priced at £28,450, it is advertised £738 below the AskCar estimate of £29,188. The AskCar estimate uses 789 UK dealer adverts for the Audi A6 Avant, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 39 days ago. Its asking price has since fallen by £1,145. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Group 1 Automotive Whetstone Audi, based in Whetstone. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £738 (2%) under the AskCar estimate of £29,188.

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 789 priced Audi A6 Avant adverts across different ages and specifications, as of 7 November 2026.

A 2023 Audi A6 Avant with the 2.0 diesel engine is typically advertised at £24,800: the median of the 97 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2023 Audi A6 Avant has been on sale for at least 39 days.

Price history

AskCar first saw this advert on 29 September 2026 at £29,595. Its asking price is now £28,450, £1,145 less. The latest price cut was seen on 6 November 2026.

Price changes recorded:

• 29 September 2026: £29,595
• 6 October 2026: £29,495
• 14 October 2026: £28,990
• 17 October 2026: £28,450
• 23 October 2026: £28,295
• 30 October 2026: £28,550
• 6 November 2026: £28,450

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 28 September 2027.

It has had 2 MOTs. The latest, on 29 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 30,361 miles, which matches the advertised 30,361 miles.

Advertised mileage is about 4,200 miles lower than the median mileage of a 2023 Audi A6 Avant on AskCar.

Similar cars

8 other 2023 Audi A6 Avant S Line 2.0 diesel automatic estates are for sale at UK dealers, from £21,990 to £30,990, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A6 Avant S Line, 2.0 diesel estate, grey. Mileage: 36,164 miles. Price: £26,775, £1,675 less than this car. Dealer: Lawrence Warner Specialist Cars in Havant. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-c8803ef08f38
• 2023 Audi A6 Avant S Line, 2.0 diesel estate, grey. Mileage: 23,503 miles. Price: £29,749, £1,299 more than this car. Dealer: Ballyrobert Mallusk in Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-3dc2896ceb02
• 2023 Audi A6 Avant S Line, 2.0 diesel estate, grey. Mileage: 23,503 miles. Price: £29,750, £1,300 more than this car. Dealer: Ballyrobert Mallusk in Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-d91940c40f87