2018 Audi A6 3.0 S Line

Overview

• Make: Audi
• Model: A6
• Trim: S Line
• Version: 3.0 S Line Auto 4WD Euro 6 5dr
• Year: 2018
• Mileage: 60,000 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 155 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A6 S Line is advertised with 60,000 miles on the clock. The dealer is asking £20,990, which is £1,283 above the AskCar estimate of £19,707. To work out the AskCar estimate, we analyse UK dealer adverts for 64 Audi A6 cars across different ages and specifications. It first appeared in our advert records 14 days ago. The latest MOT recorded 66,917 miles, above the advertised mileage. Check this with the dealer. Our latest MOT record expired on 21 October 2026. Check the current position with the dealer. The seller is Derby Trade Cars, based in Derby. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,283 (6%) over the AskCar estimate of £19,707.

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 64 priced Audi A6 adverts across different ages and specifications, as of 4 November 2026.

Time on sale

This 2018 Audi A6 has been on sale for at least 14 days.

Price history

AskCar first saw this advert on 21 October 2026 at £20,990. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: the latest record we hold ran out on 21 October 2026; ask the dealer for the current MOT.

It has had 6 MOTs. The latest, on 21 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 66,917 miles. The advert says 60,000 miles, fewer than the MOT record, so ask the dealer which is right.

Similar cars

1 other 2018 Audi A6 S Line 3.0 diesel automatic estate is for sale at UK dealers, as of 4 November 2026.

The closest to this car in mileage:

• 2018 Audi A6 S Line, 3.0 diesel estate, white. Mileage: 15,000 miles. Price: £39,985, £18,995 more than this car. Dealer: Bedford Specialist Cars in Bedford. AskCar page: https://askcar.co.uk/car/audi-a6-2018-7db6d259e863