2018 Audi A8 3.0
Price: £21,000. Good value: £2,108 (9%) under the AskCar estimate of £23,108, our expected asking price for this car from its model, age, mileage and specification, drawing on 219 priced Audi A8 adverts on AskCar as of 4 November 2026.
AskCar lists 229 used Audi A8 from 195 UK dealerships, as of 4 November 2026.
Overview
- Make: Audi
- Model: A8
- Version: 3.0 50 TDI Tiptronic 4WD Euro 6 4dr (282 bhp)
- Year: 2018
- Mileage: 51,873 miles
- Fuel: Diesel
- Body: Saloon, 4 doors, 5 seats
- Engine: 3.0 litres, 282 bhp
- Gearbox: Automatic (Tiptronic)
- Drive: Four-wheel drive
- Colour: Blue
- CO2: 152 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 Audi A8 is advertised with 51,873 miles, approximately 3,900 below the typical mileage for its age. Priced at £21,000, it is advertised £2,108 below the AskCar estimate of £23,108. The AskCar estimate uses UK dealer asking prices, including 219 Audi A8 adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 1 day. Its advertised mileage matches the government's MOT record. It is advertised by Car Planet Watford in Rickmansworth. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Good value: £2,108 (9%) under the AskCar estimate of £23,108.
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 219 priced Audi A8 adverts across different ages and specifications, as of 4 November 2026.
A 2018 Audi A8 with the 3.0 diesel engine is typically advertised at £21,200: the median of the 24 for sale on AskCar, as of 4 November 2026.
Time on sale
AskCar first saw this 2018 Audi A8 advertised 1 day ago.
Price history
AskCar first saw this advert on 3 November 2026 at £21,000. 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 4 November 2026: valid until 12 October 2027.
It has had 6 MOTs. The latest, on 13 October 2026, passed.
Advisories at the latest test: nearside front tyre slightly damaged/cracking or perishing; offside front tyre slightly damaged/cracking or perishing.
Mileage at that test: 51,661 miles, which matches the advertised 51,873 miles.
Advertised mileage is about 3,900 miles lower than the median mileage of a 2018 Audi A8 on AskCar.
Browse all Audi A8 cars for sale · 2018 Audi A8 price guide
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Photos
1 photo of this car is on its AskCar page.
As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.