2018 Audi S4 3.0
Price: £20,900. Fair price: £42 (under 1%) under the AskCar estimate of £20,942, our expected asking price for this car from its model, age, mileage and specification, drawing on 93 priced Audi S4 adverts on AskCar as of 6 November 2026.
AskCar lists 95 used Audi S4 from 84 UK dealerships, as of 6 November 2026.
Overview
- Make: Audi
- Model: S4
- Version: 3.0 V6 TFSI Tiptronic 4WD Euro 6 4dr (349 bhp)
- Year: 2018
- Mileage: 55,465 miles
- Fuel: Petrol
- Body: Saloon, 4 doors, 5 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
With 55,465 miles on the clock, this 2018 Audi S4 has done roughly 9,100 fewer miles than a typical 2018 Audi S4. The dealer is asking £20,900, which is £42 below the AskCar estimate of £20,942. To work out the AskCar estimate, we analyse UK dealer adverts for 93 Audi S4 cars across different ages and specifications. We have tracked this advert for 8 days. Its advertised mileage matches the government's MOT record. The seller is Sytner Select Northampton, based in Northampton. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 6 November 2026.
Price
Fair price: £42 (under 1%) under the AskCar estimate of £20,942.
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 93 priced Audi S4 adverts across different ages and specifications, as of 6 November 2026.
A 2018 Audi S4 with the 3.0 petrol engine is typically advertised at £20,000: the median of the 15 for sale on AskCar, as of 6 November 2026.
Time on sale
This 2018 Audi S4 has been on sale for at least 8 days.
Price history
AskCar first saw this advert on 29 October 2026 at £20,900. 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 6 November 2026: valid until 29 July 2027.
It has had 7 MOTs. The latest, on 30 July 2026, passed.
Advisories at the latest test: offside rear lower suspension arm corroded but not seriously weakened spring seat corroded.
Mileage at that test: 54,483 miles, which matches the advertised 55,465 miles.
Advertised mileage is about 9,100 miles lower than the median mileage of a 2018 Audi S4 on AskCar.
Browse all Audi S4 cars for sale · 2018 Audi S4 price guide
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Photos
9 photos of this car are on its AskCar page.
As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.