2018 Audi A6 Avant 1.8 TFSI S Line

Overview

• Make: Audi
• Model: A6 Avant
• Trim: S Line
• Version: 1.8 TFSI S Line S tronic FWD Euro 6 5dr (187 bhp)
• Year: 2018
• Mileage: 61,000 miles
• Fuel: Petrol
• Body: Estate, 5 doors, 5 seats
• Engine: 1.8 litres, 187 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 137 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 61,000 miles on the clock, this 2018 Audi A6 Avant S Line has done roughly 21,900 fewer miles than a typical 2018 Audi A6 Avant. The AskCar estimate for this car is £14,670. It is priced at £13,990, which is £680 below that estimate. The AskCar estimate uses 778 UK dealer adverts for the Audi A6 Avant, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 158 days ago, and its asking price has since fallen by £2,300. Our latest MOT record expired on 29 April 2026. Check the current position with the dealer. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by SR Motor Company in Glasgow. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £680 (4%) under the AskCar estimate of £14,670.

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 778 priced Audi A6 Avant adverts across different ages and specifications, as of 2 November 2026.

A 2018 Audi A6 Avant with the 1.8 petrol engine is typically advertised at £13,900: the median of the 10 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Audi A6 Avant has been on sale for at least 158 days.

Price history

AskCar first saw this advert on 28 May 2026 at £16,290. Its asking price is now £13,990, £2,300 less. The latest price cut was seen on 7 October 2026.

Price changes recorded:

• 29 May 2026: £16,290
• 26 July 2026: £14,990
• 7 October 2026: £13,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 29 April 2026; ask the dealer for the current MOT.

It has had 5 MOTs. The latest, on 25 April 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 57,729 miles, which matches the advertised 61,000 miles.

Advertised mileage is about 21,900 miles lower than the median mileage of a 2018 Audi A6 Avant on AskCar.

Similar cars

4 other 2018 Audi A6 Avant S Line 1.8 petrol automatic estates are for sale at UK dealers, from £12,900 to £15,490, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A6 Avant S Line, 1.8 petrol estate, black. Mileage: 69,549 miles. Price: £12,900, £1,090 less than this car. Dealer: Perry Road Autos in Tiptree. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-256288123bf3
• 2018 Audi A6 Avant S Line, 1.8 petrol estate, grey. Mileage: 70,500 miles. Price: £13,190, £800 less than this car. Dealer: Carnet Midlands in Burntwood. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-350e71efd091
• 2018 Audi A6 Avant S Line, 1.8 petrol estate, black. Mileage: 47,345 miles. Price: £14,450, £460 more than this car. Dealer: Kayan Motors in Ealing. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-49851aa04ca2