2018 Audi A6 Saloon 3.0 TDI V6 S Line

Overview

• Make: Audi
• Model: A6 Saloon
• Trim: S Line
• Version: 3.0 TDI V6 50 S Line Tiptronic 4WD Euro 6 (s/s) 4dr (282 bhp)
• Year: 2018
• Mileage: 131,000 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 282 bhp
• Gearbox: Automatic (Tiptronic)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A6 Saloon S Line is advertised with 131,000 miles, approximately 61,500 above the typical mileage for its age. The dealer is asking £11,490, which is £773 below the AskCar estimate of £12,263. To work out the AskCar estimate, we analyse UK dealer adverts for 858 Audi A6 Saloon cars across different ages and specifications. Since we first spotted the advert 158 days ago, the asking price has dropped by £2,500. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at 2Us 4 Cars in Bacup. 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: £773 (6%) under the AskCar estimate of £12,263.

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

A 2018 Audi A6 Saloon with the 3.0 diesel engine is typically advertised at £17,500: the median of the 13 for sale on AskCar, as of 2 November 2026.

Time on sale

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

Price history

AskCar first saw this advert on 28 May 2026 at £13,990. Its asking price is now £11,490, £2,500 less. The latest price cut was seen on 16 October 2026.

Price changes recorded:

• 28 May 2026: £13,990
• 22 July 2026: £12,990
• 11 August 2026: £13,990
• 17 September 2026: £12,990
• 2 October 2026: £11,990
• 16 October 2026: £11,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 28 January 2027.

It has had 5 MOTs. The latest, on 29 January 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 130,781 miles, which matches the advertised 131,000 miles.

Advertised mileage is about 61,500 miles higher than the median mileage of a 2018 Audi A6 Saloon on AskCar.

Similar cars

10 other 2018 Audi A6 Saloon S Line 3.0 diesel automatic saloons are for sale at UK dealers, from £13,990 to £21,998, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A6 Saloon S Line, 3.0 diesel saloon, black. Mileage: 116,650 miles. Price: £13,990, £2,500 more than this car. Dealer: Harvey Cooper Cars in Ripon. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-6fc4b430171b
• 2018 Audi A6 Saloon S Line, 3.0 diesel saloon, white. Mileage: 103,347 miles. Price: £15,494, £4,004 more than this car. Dealer: Alisons Automotive Group in Cam. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-c60d46fecc22
• 2018 Audi A6 Saloon S Line, 3.0 diesel saloon, black. Mileage: 91,370 miles. Price: £15,690, £4,200 more than this car. Dealer: SR Motors in Swindon. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-1264248cfbfe

• The nearest: 2018 Audi A6 Saloon S Line, 3.0 diesel saloon, white, 12 miles from this car. Mileage: 60,450 miles. Price: £19,250, £7,760 more than this car. Dealer: Blackline Motors in Oldham. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-b40b1a5fc07c