2020 Audi A4 2.0 TFSI S Line

Price: £17,495. Fair price: £17 (under 1%) over the AskCar estimate of £17,478, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,428 priced Audi A4 adverts on AskCar as of 2 November 2026.

AskCar lists 1,493 used Audi A4 from 984 UK dealerships, as of 2 November 2026.

Overview

  • Make: Audi
  • Model: A4
  • Trim: S Line
  • Version: 2.0 TFSI 40 S Line S tronic FWD Euro 6 (s/s) 4dr (187 bhp)
  • Year: 2020
  • Mileage: 49,000 miles
  • Fuel: Petrol
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.0 litres, 187 bhp
  • 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 has covered 49,000 miles, around 4,000 fewer miles than is typical for its age. Priced at £17,495, it is advertised £17 above the AskCar estimate of £17,478. The AskCar estimate draws on 1,428 Audi A4 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 124 days ago. Our latest MOT record expired on 30 July 2026. Check the current position with the dealer. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at SSS Car Sales in London. 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: £17 (under 1%) over the AskCar estimate of £17,478.

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 124 days.

Price history

AskCar first saw this advert on 1 July 2026 at £17,495. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 30 July 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 8 July 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 42,278 miles, which matches the advertised 49,000 miles.

Advertised mileage is about 4,000 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, grey. Mileage: 54,010 miles. Price: £16,880, £615 less than this car. Dealer: Bridgend Motor Group, Ayr in Prestwick. AskCar page: https://askcar.co.uk/car/audi-a4-2020-2475d7ced717
  • 2020 Audi A4 S Line, 2.0 petrol saloon, blue. Mileage: 37,750 miles. Price: £17,499, the same price as 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, black. Mileage: 33,600 miles. Price: £17,990, £495 more than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/audi-a4-2020-d447160ff9fa
  • The nearest: 2020 Audi A4 S Line, 2.0 petrol saloon, grey, 8 miles from this car. Mileage: 32,020 miles. Price: £18,000, £505 more than this car. Dealer: Sytner Group West London Audi in London. AskCar page: https://askcar.co.uk/car/audi-a4-2020-cc63787d1a67

Browse all Audi A4 cars for sale · 2020 Audi A4 price guide

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Photos

45 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.