2018 Audi Q8 3.0 TDI V6 S Line

Price: £28,995. Fair price: £837 (2%) under the AskCar estimate of £29,832, our expected asking price for this car from its model, age, mileage and specification, drawing on 433 priced Audi Q8 adverts on AskCar as of 2 November 2026.

AskCar lists 441 used Audi Q8 from 299 UK dealerships, as of 2 November 2026.

Overview

  • Make: Audi
  • Model: Q8
  • Trim: S Line
  • Version: 3.0 TDI V6 50 S Line Tiptronic 4WD Euro 6 (s/s) 5dr (282 bhp)
  • Year: 2018
  • Mileage: 68,385 miles
  • Fuel: Diesel, mild hybrid
  • Body: SUV, 5 doors, 5 seats
  • Engine: 3.0 litres, 282 bhp
  • Gearbox: Automatic (Tiptronic)
  • Drive: Four-wheel drive
  • Colour: Grey
  • CO2: 178 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi Q8 S Line is advertised with 68,385 miles on the clock. Priced at £28,995, it is advertised £837 below the AskCar estimate of £29,832. The AskCar estimate draws on 433 Audi Q8 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 2 days ago. Its advertised mileage matches the government's MOT record. The seller is John Clark Motor Group Dundee Audi, based in Dundee. 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: £837 (2%) under the AskCar estimate of £29,832.

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 433 priced Audi Q8 adverts across different ages and specifications, as of 2 November 2026.

A 2018 Audi Q8 with the 3.0 diesel engine is typically advertised at £31,000: the median of the 33 for sale on AskCar, as of 2 November 2026.

Time on sale

AskCar first saw this 2018 Audi Q8 advertised 2 days ago.

Price history

AskCar first saw this advert on 31 October 2026 at £28,995. 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 2 November 2026: valid until 26 September 2027.

It has had 7 MOTs. The latest, on 1 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 66,361 miles, which matches the advertised 68,385 miles.

Advertised mileage is about 900 miles higher than the median mileage of a 2018 Audi Q8 on AskCar.

Similar cars

22 other 2018 Audi Q8 S Line 3.0 diesel automatic SUVs are for sale at UK dealers, from £22,950 to £39,995, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2018 Audi Q8 S Line, 3.0 diesel SUV, grey. Mileage: 68,389 miles. Price: £28,489, £506 less than this car. Dealer: Essex Prestige in Harlow. AskCar page: https://askcar.co.uk/car/audi-q8-2018-384543d894b6
  • 2018 Audi Q8 S Line, 3.0 diesel SUV, grey. Mileage: 68,800 miles. Price: £27,500, £1,495 less than this car. Dealer: Reverie Autos in Hatfield. AskCar page: https://askcar.co.uk/car/audi-q8-2018-21bfad79e379
  • 2018 Audi Q8 S Line, 3.0 diesel SUV, white. Mileage: 67,500 miles. Price: £32,449, £3,454 more than this car. Dealer: Paragon Cars London in Watford. AskCar page: https://askcar.co.uk/car/audi-q8-2018-f1ce3534ff8e
  • The nearest: 2018 Audi Q8 S Line, 3.0 diesel SUV, white, under a mile from this car. Mileage: 27,707 miles. Price: £32,998, £4,003 more than this car. Dealer: Arnold Clark Dundee Kia in Dundee. AskCar page: https://askcar.co.uk/car/audi-q8-2018-565d5658af1d

Browse all Audi Q8 cars for sale · 2018 Audi Q8 price guide

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Photos

28 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.