2020 Audi A4 2.0 TFSI S Line

Overview

• Make: Audi
• Model: A4
• Trim: S Line
• Version: 2.0 TFSI 40 S Line S tronic FWD Euro 6 (s/s) 4dr
• Year: 2020
• Mileage: 32,020 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 163 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Audi A4 S Line is advertised with 32,020 miles, approximately 21,000 below the typical mileage for its age. Its asking price of £18,000 is £1,145 below the AskCar estimate of £19,145. The AskCar estimate uses 1,428 UK dealer adverts for the Audi A4, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 39 days ago, and its asking price has since fallen by £750. Its advertised mileage matches the government's MOT record. It is for sale at Sytner Group West London Audi in Brentford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,145 (5%) under the AskCar estimate of £19,145.

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 1,428 priced Audi A4 adverts across different ages and specifications, as of 2 November 2026.

A 2020 Audi A4 with the 2.0 petrol engine is typically advertised at £17,300: the median of the 103 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2020 Audi A4 has been on sale for at least 39 days.

Price history

AskCar first saw this advert on 24 September 2026 at £18,750. Its asking price is now £18,000, £750 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 24 September 2026: £18,750
• 16 October 2026: £18,500
• 29 October 2026: £18,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 30 July 2027.

It failed its MOT on 22 July 2026 (exhaust lambda reading after 2nd fast idle outside specified limits; windscreen damaged but not adversely affecting driver's view; offside front headlamp aim too high) and passed 7 days later, on 29 July 2026.

Advisories at the latest test: windscreen damaged but not adversely affecting driver's view; nearside front tyre has a cut but not deep enough to reach the ply or cords; under tray fitted.

Mileage at that test: 31,162 miles, which matches the advertised 32,020 miles.

Advertised mileage is about 21,000 miles lower than the median mileage of a 2020 Audi A4 on AskCar.

Similar cars

6 other 2020 Audi A4 S Line 2.0 petrol automatic saloons are for sale at UK dealers, from £14,988 to £19,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2020 Audi A4 S Line, 2.0 petrol saloon, black. Mileage: 33,600 miles. Price: £17,990, the same price as this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/audi-a4-2020-d447160ff9fa
• 2020 Audi A4 S Line, 2.0 petrol saloon, blue. Mileage: 37,750 miles. Price: £17,499, £501 less than this car. Dealer: Gates Of Woodford in Woodford. AskCar page: https://askcar.co.uk/car/audi-a4-2020-6afc35dac6ba
• 2020 Audi A4 S Line, 2.0 petrol saloon, grey. Mileage: 49,000 miles. Price: £17,495, £505 less than this car. Dealer: SSS Car Sales in London. AskCar page: https://askcar.co.uk/car/audi-a4-2020-5156ef720f6d