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: 69,549 miles
• Fuel: Petrol
• Body: Estate, 5 doors, 5 seats
• Engine: 1.8 litres, 187 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 137 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 69,549 miles, this 2018 Audi A6 Avant S Line has covered about 13,400 fewer miles than other 2018 Audi A6 Avant cars. The AskCar estimate for this car is £13,772. It is priced at £12,900, which is £872 below that estimate. The AskCar estimate draws on 778 Audi A6 Avant adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 41 days ago. Its asking price has since fallen by £595. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Perry Road Autos in Colchester. 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: £872 (6%) under the AskCar estimate of £13,772.

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 41 days.

Price history

AskCar first saw this advert on 22 September 2026 at £13,495. Its asking price is now £12,900, £595 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 22 September 2026: £13,495
• 2 November 2026: £12,900

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 1 March 2027.

It has had 7 MOTs. The latest, on 14 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 64,837 miles, which matches the advertised 69,549 miles.

Advertised mileage is about 13,400 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 £13,190 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, grey. Mileage: 70,500 miles. Price: £13,190, £290 more 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, white. Mileage: 61,000 miles. Price: £13,990, £1,090 more than this car. Dealer: SR Motor Company in Hillington. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-79b9a861797a
• 2018 Audi A6 Avant S Line, 1.8 petrol estate, black. Mileage: 47,345 miles. Price: £14,450, £1,550 more than this car. Dealer: Kayan Motors in Ealing. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-49851aa04ca2