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: 112,225 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 112,225 miles, this 2018 Audi S4 Avant has covered about 41,100 more miles than other 2018 Audi S4 Avant cars. Priced at £16,490, it is advertised £10 below the AskCar estimate of £16,500. 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 8 days ago, the asking price has dropped by £259. We checked its advertised mileage against the government's MOT record, and they match. The seller is A Star Motor Unit, based in Peterborough. 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: £10 (under 1%) under the AskCar estimate of £16,500.

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 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 8 days.

Price history

AskCar first saw this advert on 31 October 2026 at £16,749. Its asking price is now £16,490, £259 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 31 October 2026: £16,749
• 4 November 2026: £16,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 2 January 2027.

It failed its MOT on 10 December 2025 (offside rear coil spring fractured or broken) and passed 2 days later, on 12 December 2025.

Advisories at the latest test: oil leak.

Mileage at that test: 96,463 miles, which matches the advertised 112,225 miles.

Advertised mileage is about 41,100 miles higher than the median mileage of a 2018 Audi S4 Avant on AskCar.