2020 Audi S4 Avant 3.0 TDI V6

Overview

• Make: Audi
• Model: S4 Avant
• Version: 3.0 TDI V6 Tiptronic 4WD Euro 6 (s/s) 5dr (342 bhp)
• Year: 2020
• Mileage: 55,266 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 342 bhp
• Gearbox: Automatic (Tiptronic)
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 163 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Audi S4 Avant has covered 55,266 miles, around 5,600 fewer miles than is typical for its age. Its asking price of £27,850 is £1,447 below the AskCar estimate of £29,297. The AskCar estimate uses UK dealer asking prices, including 125 Audi S4 Avant adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 8 days ago, the asking price has dropped by £100. We checked its advertised mileage against the government's MOT record, and they match. The seller is Mon Motors Cheltenham Audi, based in Cheltenham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,447 (4%) under the AskCar estimate of £29,297.

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 125 priced Audi S4 Avant adverts across different ages and specifications, as of 5 November 2026.

A 2020 Audi S4 Avant with the 3.0 diesel engine is typically advertised at £27,700: the median of the 21 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2020 Audi S4 Avant has been on sale for at least 8 days.

Price history

AskCar first saw this advert on 28 October 2026 at £27,950. Its asking price is now £27,850, £100 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 28 October 2026: £27,950
• 5 November 2026: £27,850

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 26 February 2027.

It has had 4 MOTs. The latest, on 27 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 46,097 miles, which matches the advertised 55,266 miles.

Advertised mileage is about 5,600 miles lower than the median mileage of a 2020 Audi S4 Avant on AskCar.