2018 Audi S4 Avant 3.0 TFSI V6
Price: £21,995. Fair price: £1,505 (6%) under the AskCar estimate of £23,500, our expected asking price for this car from its model, age, mileage and specification, drawing on 126 priced Audi S4 Avant adverts on AskCar as of 7 November 2026.
AskCar lists 128 used Audi S4 Avant from 118 UK dealerships, as of 7 November 2026.
Overview
- Make: Audi
- Model: S4 Avant
- Version: 3.0 TFSI V6 Tiptronic 4WD Euro 6 (s/s) 5dr (349 bhp)
- Year: 2018
- Mileage: 60,400 miles
- Fuel: Petrol
- Body: Estate, 5 doors, 5 seats
- Engine: 3.0 litres, 349 bhp
- Gearbox: Automatic (Tiptronic)
- Drive: Four-wheel drive
- Colour: Black
- CO2: 175 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 60,400 miles on the clock, this 2018 Audi S4 Avant has done roughly 10,700 fewer miles than a typical 2018 Audi S4 Avant. Its asking price of £21,995 is £1,505 below the AskCar estimate of £23,500. The AskCar estimate uses UK dealer asking prices, including 126 Audi S4 Avant adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 112 days ago, and its asking price has since fallen by £955. Its advertised mileage matches the government's MOT record. The seller is Harris-Mayes Country Cars, based in Rickmansworth. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 7 November 2026.
Price
Fair price: £1,505 (6%) under the AskCar estimate of £23,500.
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 126 priced Audi S4 Avant adverts across different ages and specifications, as of 7 November 2026.
A 2018 Audi S4 Avant with the 3.0 petrol engine is typically advertised at £21,500: the median of the 20 for sale on AskCar, as of 7 November 2026.
Time on sale
This 2018 Audi S4 Avant has been on sale for at least 112 days.
Price history
AskCar first saw this advert on 18 July 2026 at £22,950. Its asking price is now £21,995, £955 less. The latest price cut was seen on 3 October 2026.
Price changes recorded:
- 8 September 2026: £22,950
- 3 October 2026: £21,995
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 26 July 2027.
It has had 9 MOTs. The latest, on 21 July 2026, passed.
Advisories at the latest test: nearside rear child seat fitted not allowing full inspection of adult belt.
Mileage at that test: 59,893 miles, which matches the advertised 60,400 miles.
Advertised mileage is about 10,700 miles lower than the median mileage of a 2018 Audi S4 Avant on AskCar.
Browse all Audi S4 Avant cars for sale · 2018 Audi S4 Avant price guide
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Photos
9 photos of this car are on its AskCar page.
As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.