2018 Audi Q8 3.0 TDI V6 S Line

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: 115,000 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: Blue
• CO2: 178 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi Q8 S Line is advertised with 115,000 miles, approximately 46,600 above the typical mileage for its age. The AskCar estimate for this car is £22,288. It is priced at £22,950, which is £662 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 435 Audi Q8 cars across different ages and specifications. The asking price is now £1,995 lower than when we first recorded the advert 105 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Boss Motor Company in Chesham. 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: £662 (2%) over the AskCar estimate of £22,288.

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 435 priced Audi Q8 adverts across different ages and specifications, as of 4 November 2026.

A 2018 Audi Q8 with the 3.0 diesel engine is typically advertised at £31,000: the median of the 35 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 Audi Q8 has been on sale for at least 105 days.

Price history

AskCar first saw this advert on 22 July 2026 at £24,945. Its asking price is now £22,950, £1,995 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 22 July 2026: £24,945
• 19 August 2026: £24,450
• 29 September 2026: £23,950
• 14 October 2026: £23,450
• 27 October 2026: £22,950

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 29 November 2026.

It has had 5 MOTs. The latest, on 17 November 2025, passed.

Advisories at the latest test: windscreen damaged but not adversely affecting driver's view.

Mileage at that test: 102,989 miles, which matches the advertised 115,000 miles.

Advertised mileage is about 46,600 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 £25,490 to £39,995, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi Q8 S Line, 3.0 diesel SUV, white. Mileage: 100,000 miles. Price: £28,450, £5,500 more than this car. Dealer: E & E Car Sales in Canvey Island. AskCar page: https://askcar.co.uk/car/audi-q8-2018-65b9f043c10a
• 2018 Audi Q8 S Line, 3.0 diesel SUV, white. Mileage: 83,454 miles. Price: £25,490, £2,540 more than this car. Dealer: Westfield Prestige Cars in Kirkby-in-Ashfield. AskCar page: https://askcar.co.uk/car/audi-q8-2018-5a274ef2f1b3
• 2018 Audi Q8 S Line, 3.0 diesel SUV, grey. Mileage: 77,680 miles. Price: £31,489, £8,539 more than this car. Dealer: A6 Motors in Luton. AskCar page: https://askcar.co.uk/car/audi-q8-2018-13f0abb89c9f

• The nearest: 2018 Audi Q8 S Line, 3.0 diesel SUV, white, 9 miles from this car. Mileage: 67,500 miles. Price: £32,449, £9,499 more than this car. Dealer: Paragon Cars London in Watford. AskCar page: https://askcar.co.uk/car/audi-q8-2018-f1ce3534ff8e