2018 Audi S4 Avant 3.0 TFSI V6

Price: £17,295. Good value: £1,834 (9%) under the AskCar estimate of £19,129, our expected asking price for this car from its model, age, mileage and specification, drawing on 128 priced Audi S4 Avant adverts on AskCar as of 8 November 2026.

AskCar lists 129 used Audi S4 Avant from 117 UK dealerships, as of 8 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: 90,000 miles
  • Fuel: Petrol
  • Body: Estate, 5 doors, 5 seats
  • Engine: 3.0 litres, 349 bhp
  • Gearbox: Automatic (Tiptronic)
  • Drive: Four-wheel drive
  • Colour: Blue
  • CO2: 175 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

At 90,000 miles, this 2018 Audi S4 Avant has covered about 18,900 more miles than other 2018 Audi S4 Avant cars. The AskCar estimate for this car is £19,129. It is priced at £17,295, which is £1,834 below that estimate. The AskCar estimate uses 128 UK dealer adverts for the Audi S4 Avant, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 89 days ago, the asking price has dropped by £1,200. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Noya Cars in Borehamwood. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Good value: £1,834 (9%) under the AskCar estimate of £19,129.

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 128 priced Audi S4 Avant adverts across different ages and specifications, as of 8 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 8 November 2026.

Time on sale

This 2018 Audi S4 Avant has been on sale for at least 89 days.

Price history

AskCar first saw this advert on 11 August 2026 at £18,495. Its asking price is now £17,295, £1,200 less. The latest price cut was seen on 10 October 2026.

Price changes recorded:

  • 11 August 2026: £18,495
  • 2 September 2026: £18,295
  • 10 October 2026: £17,295

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 19 March 2027.

It has had 9 MOTs. The latest, on 28 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 83,091 miles, which matches the advertised 90,000 miles.

Advertised mileage is about 18,900 miles higher 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

99 photos of this car are on its AskCar page.

As of 8 November 2026, AskCar lists 595,762 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.