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: 40,000 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: Black
• CO2: 178 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 40,000 miles on the clock, this 2018 Audi Q8 S Line has done roughly 27,500 fewer miles than a typical 2018 Audi Q8. The dealer is asking £39,995, which is £5,496 above the AskCar estimate of £34,499. To work out the AskCar estimate, we analyse UK dealer adverts for 433 Audi Q8 cars across different ages and specifications. This car was first seen in our listings data 156 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at AH Specialist Cars in Watford. 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

Above the going rate: £5,496 (15%) over the AskCar estimate of £34,499.

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

This 2018 Audi Q8 has been on sale for at least 156 days.

Price history

AskCar first saw this advert on 30 May 2026 at £39,995. 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 10 March 2027.

It has had 6 MOTs. The latest, on 11 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 40,242 miles, which matches the advertised 40,000 miles.

Advertised mileage is about 27,500 miles lower 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 £36,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi Q8 S Line, 3.0 diesel SUV, blue. Mileage: 42,065 miles. Price: £32,989, £7,006 less than this car. Dealer: A6 Motors in Luton. AskCar page: https://askcar.co.uk/car/audi-q8-2018-3e0f372edee9
• 2018 Audi Q8 S Line, 3.0 diesel SUV, black. Mileage: 37,864 miles. Price: £30,227, £9,768 less than this car. Dealer: Hitchfields in Huddersfield. AskCar page: https://askcar.co.uk/car/audi-q8-2018-9ef3fee1c43b
• 2018 Audi Q8 S Line, 3.0 diesel SUV, black. Mileage: 31,650 miles. Price: £31,490, £8,505 less than this car. Dealer: Group 1 Automotive Lowestoft Audi in Lowestoft. AskCar page: https://askcar.co.uk/car/audi-q8-2018-f5945593ef7e

• The nearest: 2018 Audi Q8 S Line, 3.0 diesel SUV, black, under a mile from this car. Mileage: 59,000 miles. Price: £31,995, £8,000 less than this car. Dealer: AH Specialist Cars in Watford. AskCar page: https://askcar.co.uk/car/audi-q8-2018-955d0c617188