2020 Audi A3 1.5 TFSI S Line
Version: 1.5 TFSI 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
Price: £18,995. Fair price: £207 (1%) under the AskCar estimate of £19,202, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,475 priced Audi A3 adverts on AskCar as of 30 October 2026.
AskCar lists 6,654 used Audi A3 from 2,240 UK dealerships, as of 30 October 2026.
Overview
- Make
- Audi
- Model
- A3
- Trim
- S Line
- Version
- 1.5 TFSI 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
- Mileage
- 31,000 miles
- Year
- 2020
- Fuel type
- Petrol
- Body type
- Hatchback
- Engine
- 1.5 L
- Gearbox
- Automatic
- Power
- 148 bhp
- Seats
- 5
- CO2
- 135 g/km
- Colour
- Black
- Doors
- 5
- Driven wheels
- Front Wheel Drive
- Gearbox version
- S tronic
- Engine badge
- TFSI
- Hybrid type
- Mild hybrid
- Emissions standard
- Euro 6
About this car
At 31,000 miles, this 2020 Audi A3 S Line has covered about 19,300 fewer miles than other 2020 Audi A3 cars. Priced at £18,995, it is advertised £207 below the AskCar estimate of £19,202. To work out the AskCar estimate, we analyse UK dealer adverts for 6,475 Audi A3 cars across different ages and specifications. We first recorded this car for sale today. MOT records show an expiry date of 9 June 2027, and the latest recorded mileage is consistent with the advert. The seller is Group 1 Automotive Whetstone Audi, based in Whetstone.
Stock data as of 30 October 2026.
Price history
AskCar first saw this advert on 30 October 2026.
| Date observed | Asking price |
|---|---|
| 30 October 2026 | £18,995 |
Price and mileage comparison
Fair price: £207 (1%) under the AskCar estimate of £19,202.
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 6,475 priced Audi A3 adverts across different ages and specifications, as of 30 October 2026.
Advertised mileage is about 19,300 miles lower than the median mileage of a 2020 Audi A3 on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 9 June 2027. 28,303 miles at the last test.
Other matching cars
39 other 2020 Audi A3 S Line automatic petrol cars are for sale at UK dealers from £13,450 to £20,750, as of 30 October 2026.
The 5 cheapest:
- 2020 Audi A3. Price: £13,450. Mileage: 73,084 miles. Dealer: Listers Honda Northampton in Northampton. AskCar page: https://askcar.co.uk/car/audi-a3-2020-d10a50c25b5f
- 2020 Audi A3. Price: £13,900. Mileage: 61,380 miles. Dealer: Hilton Garage in Derby. AskCar page: https://askcar.co.uk/car/audi-a3-2020-443e3aba4390
- 2020 Audi A3. Price: £13,990. Mileage: 96,414 miles. Dealer: Colin Bryan T/A CB Autosales in Kirkcaldy. AskCar page: https://askcar.co.uk/car/audi-a3-2020-54481c94a689
- 2020 Audi A3. Price: £13,990. Mileage: 98,000 miles. Dealer: Brooke MOT Centre BMC Car Sales Group in Norwich. AskCar page: https://askcar.co.uk/car/audi-a3-2020-7f85c3b9c3e8
- 2020 Audi A3. Price: £14,450. Mileage: 51,334 miles. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/audi-a3-2020-edda87edf116
The 39 matching cars have covered 15,051 to 98,000 miles, compared with 31,000 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all Audi A3 cars for sale · 2020 Audi A3 price guide
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Photos
32 photos of this car are on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.