2018 Audi S4 Avant 3.0 TFSI V6

Overview

• Make: Audi
• Model: S4 Avant
• Version: 3.0 TFSI V6 Tiptronic 4WD Euro 6 (s/s) 5dr (349 bhp)
• Year: 2018
• Mileage: 46,667 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 46,667 miles on the clock, this 2018 Audi S4 Avant has done roughly 24,500 fewer miles than a typical 2018 Audi S4 Avant. Its asking price of £23,499 is £1,754 below the AskCar estimate of £25,253. The AskCar estimate uses 128 UK dealer adverts for the Audi S4 Avant, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 104 days ago. Its asking price has since fallen by £1,500. Our records show an MOT expiry date of 22 October 2026, which has passed. Ask the dealer for an update. Its advertised mileage matches the government's MOT record. The seller is Gates Of Waltham Cross, based in Waltham Cross. 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

Fair price: £1,754 (6%) under the AskCar estimate of £25,253.

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 104 days.

Price history

AskCar first saw this advert on 27 July 2026 at £24,999. Its asking price is now £23,499, £1,500 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 27 July 2026: £24,999
• 11 September 2026: £25,000
• 24 September 2026: £24,799
• 6 October 2026: £23,799
• 31 October 2026: £23,499

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: the latest record we hold ran out on 22 October 2026; ask the dealer for the current MOT.

It has had 6 MOTs. The latest, on 23 October 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 42,672 miles, which matches the advertised 46,667 miles.

Advertised mileage is about 24,500 miles lower than the median mileage of a 2018 Audi S4 Avant on AskCar.