2021 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: 2021
• Mileage: 37,172 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

With 37,172 miles on the clock, this 2021 Audi Q8 S Line has done roughly 14,400 fewer miles than a typical 2021 Audi Q8. The dealer is asking £33,900, which is £3,981 below the AskCar estimate of £37,881. To work out the AskCar estimate, we analyse UK dealer adverts for 433 Audi Q8 cars across different ages and specifications. Since we first spotted the advert 110 days ago, the asking price has dropped by £5,172. Our records show an MOT expiry date of 29 October 2026, which has passed. Ask the dealer for an update. We checked its advertised mileage against the government's MOT record, and they match. The seller is Vindis Group Cambridge Audi, based in Cambridge. 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

Good value: £3,981 (10%) under the AskCar estimate of £37,881.

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 2021 Audi Q8 with the 3.0 diesel engine is typically advertised at £36,000: the median of the 46 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 Audi Q8 has been on sale for at least 110 days.

Price history

AskCar first saw this advert on 15 July 2026 at £39,072. Its asking price is now £33,900, £5,172 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 16 July 2026: £39,072
• 20 July 2026: £38,913
• 21 July 2026: £38,930
• 22 July 2026: £38,918
• 23 July 2026: £38,890
• 24 July 2026: £38,931
• 26 July 2026: £38,756
• 28 July 2026: £38,795
• 29 July 2026: £38,796
• 31 July 2026: £38,697
• 1 August 2026: £38,748
• 2 August 2026: £38,649
• 4 August 2026: £38,663
• 6 August 2026: £38,662
• 7 August 2026: £38,612
• 9 August 2026: £38,494
• 14 August 2026: £38,065
• 15 August 2026: £38,018
• 16 August 2026: £37,919
• 18 August 2026: £37,926
• 19 August 2026: £37,917
• 20 August 2026: £37,913
• 21 August 2026: £37,858
• 22 August 2026: £37,812
• 23 August 2026: £37,713
• 26 August 2026: £37,704
• 27 August 2026: £37,686
• 28 August 2026: £37,677
• 29 August 2026: £37,693
• 31 August 2026: £37,594
• 2 September 2026: £37,554
• 3 September 2026: £37,417
• 4 September 2026: £37,387
• 5 September 2026: £37,288
• 6 September 2026: £37,279
• 8 September 2026: £37,298
• 9 September 2026: £37,314
• 10 September 2026: £37,329
• 11 September 2026: £37,261
• 12 September 2026: £37,162
• 13 September 2026: £36,400
• 24 September 2026: £35,900
• 3 October 2026: £36,334
• 4 October 2026: £35,400
• 8 October 2026: £34,400
• 22 October 2026: £33,900

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 29 October 2026; ask the dealer for the current MOT.

It failed its MOT on 30 October 2025 (front registration plate does not conform to the specified requirements tinted and incorrectly spaced; rear registration plate does not conform to the specified requirements tinted and incorrectly spaced) and passed later the same day.

Advisories at the latest test: offside rear child seat fitted not allowing full inspection of adult belt; offside front tyre has a cut but not deep enough to reach the ply or cords; nearside front tyre worn close to legal limit/worn on edge 1.6mm; and 3 more.

Mileage at that test: 34,632 miles, which matches the advertised 37,172 miles.

Advertised mileage is about 14,400 miles lower than the median mileage of a 2021 Audi Q8 on AskCar.

Similar cars

11 other 2021 Audi Q8 S Line 3.0 diesel automatic SUVs are for sale at UK dealers, from £30,990 to £38,750, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi Q8 S Line, 3.0 diesel SUV, silver. Mileage: 38,358 miles. Price: £32,190, £1,710 less than this car. Dealer: Evans Halshaw BYD Bury in Bury. AskCar page: https://askcar.co.uk/car/audi-q8-2021-c77d9a42bc60
• 2021 Audi Q8 S Line, 3.0 diesel SUV, grey. Mileage: 44,992 miles. Price: £36,000, £2,100 more than this car. Dealer: Sytner Group Wakefield Audi in Wakefield. AskCar page: https://askcar.co.uk/car/audi-q8-2021-bc7b6ad0451a
• 2021 Audi Q8 S Line, 3.0 diesel SUV, grey. Mileage: 48,155 miles. Price: £33,990, £90 more than this car. Dealer: Group 1 Automotive Finchley Road Audi in Camden. AskCar page: https://askcar.co.uk/car/audi-q8-2021-be9fd5e80d57

• The nearest: 2021 Audi Q8 S Line, 3.0 diesel SUV, grey, 19 miles from this car. Mileage: 51,443 miles. Price: £32,900, £1,000 less than this car. Dealer: Vindis Group Huntingdon Audi in Huntingdon. AskCar page: https://askcar.co.uk/car/audi-q8-2021-42651b06df3b