2020 Audi A3 1.5 TFSI S Line
Price: £15,950. Fair price: £852 (5%) under the AskCar estimate of £16,802, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,629 priced Audi A3 adverts on AskCar as of 10 November 2026.
AskCar lists 6,789 used Audi A3 from 2,285 UK dealerships, as of 10 November 2026.
Overview
- Make: Audi
- Model: A3
- Trim: S Line
- Version: 1.5 TFSI S Line S tronic FWD Euro 6 5dr (147 bhp)
- Year: 2020
- Mileage: 54,250 miles
- Fuel: Petrol
- Body: Hatchback, 5 doors, 5 seats
- Engine: 1.5 litres, 147 bhp
- Gearbox: Automatic (S tronic)
- Drive: Front-wheel drive
- Colour: White
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 54,250 miles, this 2020 Audi A3 S Line has covered about 4,200 more miles than other 2020 Audi A3 cars. Its asking price of £15,950 is £852 below the AskCar estimate of £16,802. The AskCar estimate uses UK dealer asking prices, including 6,629 Audi A3 adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data today. It is advertised by B M Autoexchange in Ards and North Down. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 10 November 2026.
B M Autoexchange is rated 4.8 out of 5 on Google.
Price
Fair price: £852 (5%) under the AskCar estimate of £16,802.
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 6,629 priced Audi A3 adverts across different ages and specifications, as of 10 November 2026.
A 2020 Audi A3 with the 1.5 petrol engine is typically advertised at £15,900: the median of the 153 for sale on AskCar, as of 10 November 2026.
Time on sale
AskCar first saw this 2020 Audi A3 advertised today. About half of 2020 Audi A3 cars are gone from sale within a month of being advertised: 265 of the 510 first advertised between 11 July 2026 and 7 October 2026.
Price history
AskCar first saw this advert on 10 November 2026 at £15,950. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 4,200 miles higher than the median mileage of a 2020 Audi A3 on AskCar.
Similar cars
27 other 2020 Audi A3 S Line 1.5 petrol automatic hatchbacks are for sale at UK dealers, from £13,100 to £20,750, as of 10 November 2026.
The 3 closest to this car in mileage:
- 2020 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 54,066 miles. Price: £16,795, £845 more than this car. Dealer: Hawco Group in Dundee. AskCar page: https://askcar.co.uk/car/audi-a3-2020-386555bf7269
- 2020 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 52,537 miles. Price: £16,632, £682 more than this car. Dealer: Carbase Bristol in Bristol. AskCar page: https://askcar.co.uk/car/audi-a3-2020-0821b03c844a
- 2020 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 51,407 miles. Price: £16,489, £539 more than this car. Dealer: Sandicliffe Mazda Nottingham in Nottingham. AskCar page: https://askcar.co.uk/car/audi-a3-2020-2c557fd847aa
- The nearest: 2020 Audi A3 S Line, 1.5 petrol hatchback, black, 141 miles from this car. Mileage: 68,000 miles. Price: £15,480, £470 less than this car. Dealer: 365 Motors in Chorley. AskCar page: https://askcar.co.uk/car/audi-a3-2020-076fbb1bfd56
Browse all Audi A3 cars for sale · 2020 Audi A3 price guide
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Photos
15 photos of this car are on its AskCar page.
As of 10 November 2026, AskCar lists 591,054 cars and vans from 12,888 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.