2018 Audi S5 3.0 TFSI V6
Price: £16,999. Good value: £2,213 (11%) under the AskCar estimate of £19,212, our expected asking price for this car from its model, age, mileage and specification, drawing on 354 priced Audi S5 adverts on AskCar as of 2 November 2026.
AskCar lists 366 used Audi S5 from 294 UK dealerships, as of 2 November 2026.
Overview
- Make: Audi
- Model: S5
- Version: 3.0 TFSI V6 Tiptronic 4WD Euro 6 (s/s) 2dr (349 bhp)
- Year: 2018
- Mileage: 79,000 miles
- Fuel: Petrol
- Body: Coupe, 2 doors, 4 seats
- Engine: 3.0 litres, 349 bhp
- Gearbox: Automatic (Tiptronic)
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 170 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 Audi S5 has covered 79,000 miles. The dealer is asking £16,999, which is £2,213 below the AskCar estimate of £19,212. To work out the AskCar estimate, we analyse UK dealer adverts for 354 Audi S5 cars across different ages and specifications. We have tracked this advert for 132 days. The last MOT shows 79,508 miles, more than the advert. This is worth checking with the dealer. MOT records show an expiry date of 8 June 2027. You can find this car at Fabian Motor Company in Swansea. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Good value: £2,213 (11%) under the AskCar estimate of £19,212.
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 354 priced Audi S5 adverts across different ages and specifications, as of 2 November 2026.
A 2018 Audi S5 with the 3.0 petrol engine is typically advertised at £20,500: the median of the 57 for sale on AskCar, as of 2 November 2026.
Time on sale
This 2018 Audi S5 has been on sale for at least 132 days.
Price history
AskCar first saw this advert on 23 June 2026 at £16,999. 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 8 June 2027.
It has had 6 MOTs. The latest, on 4 June 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 79,508 miles. The advert says 79,000 miles, fewer than the MOT record, so ask the dealer which is right.
Advertised mileage is about 12,900 miles higher than the median mileage of a 2018 Audi S5 on AskCar.
Browse all Audi S5 cars for sale · 2018 Audi S5 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.