2018 Audi S5 3.0 TFSI V6

Price: £17,295. Fair price: £416 (2%) under the AskCar estimate of £17,711, 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 Sportback Tiptronic 4WD Euro 6 (s/s) 5dr (349 bhp)
  • Year: 2018
  • Mileage: 92,500 miles
  • Fuel: Petrol
  • Body: Hatchback, 5 doors, 4 seats
  • Engine: 3.0 litres, 349 bhp
  • Gearbox: Automatic (Tiptronic)
  • Drive: Four-wheel drive
  • Colour: Red
  • CO2: 174 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi S5 is advertised with 92,500 miles, approximately 26,400 above the typical mileage for its age. Priced at £17,295, it is advertised £416 below the AskCar estimate of £17,711. The AskCar estimate uses UK dealer asking prices, including 354 Audi S5 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 122 days ago. Its asking price has since fallen by £200. It is advertised by Nextgear Motors in Wigan. 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

Fair price: £416 (2%) under the AskCar estimate of £17,711.

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 122 days.

Price history

AskCar first saw this advert on 3 July 2026 at £17,495. Its asking price is now £17,295, £200 less. The latest price cut was seen on 12 July 2026.

Price changes recorded:

  • 4 July 2026: £17,495
  • 12 July 2026: £17,295

Mileage and MOT

Advertised mileage is about 26,400 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

57 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.