2020 Audi A3 1.5 TFSI S Line
Price: £16,995. Fair price: £380 (2%) over the AskCar estimate of £16,615, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,691 priced Audi A3 adverts on AskCar as of 7 November 2026.
AskCar lists 6,887 used Audi A3 from 2,316 UK dealerships, as of 7 November 2026.
Overview
- Make: Audi
- Model: A3
- Trim: S Line
- Version: 1.5 TFSI 35 S Line Manual FWD Euro 6 (s/s) 4dr (148 bhp)
- Year: 2020
- Mileage: 34,087 miles
- Fuel: Petrol
- Body: Saloon, 4 doors, 5 seats
- Engine: 1.5 litres, 148 bhp
- Gearbox: Manual
- Drive: Front-wheel drive
- Colour: White
- CO2: 133 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 34,087 miles, this 2020 Audi A3 S Line has covered about 15,900 fewer miles than other 2020 Audi A3 cars. The AskCar estimate for this car is £16,615. It is priced at £16,995, which is £380 above that estimate. The AskCar estimate uses UK dealer asking prices, including 6,691 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale 2 days ago. Its advertised mileage matches the government's MOT record. The seller is Park's Honda Ayr, based in AYR. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 7 November 2026.
Price
Fair price: £380 (2%) over the AskCar estimate of £16,615.
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 6,691 priced Audi A3 adverts across different ages and specifications, as of 7 November 2026.
A 2020 Audi A3 with the 1.5 petrol engine is typically advertised at £15,900: the median of the 150 for sale on AskCar, as of 7 November 2026.
Time on sale
AskCar first saw this 2020 Audi A3 advertised 2 days ago. About half of 2020 Audi A3 cars are gone from sale within a month of being advertised: 261 of the 496 first advertised between 8 July 2026 and 4 October 2026.
Price history
AskCar first saw this advert on 5 November 2026 at £16,995. 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 7 November 2026: valid until 23 October 2027.
It has had 4 MOTs. The latest, on 17 October 2026, passed.
Advisories at the latest test: front brake disc worn, pitted or scored, but not seriously weakened.
Mileage at that test: 33,926 miles, which matches the advertised 34,087 miles.
Advertised mileage is about 15,900 miles lower than the median mileage of a 2020 Audi A3 on AskCar.
Similar cars
7 other 2020 Audi A3 S Line 1.5 petrol manual saloons are for sale at UK dealers, from £15,159 to £17,390, as of 7 November 2026.
The 3 closest to this car in mileage:
- 2020 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 34,000 miles. Price: £16,395, £600 less than this car. Dealer: Motor Trust UK Garstang in Preston. AskCar page: https://askcar.co.uk/car/audi-a3-2020-513d9efe3633
- 2020 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 33,418 miles. Price: £16,499, £496 less than this car. Dealer: Available Car Supermarket - Castle Donington in Castle Donington. AskCar page: https://askcar.co.uk/car/audi-a3-2020-974520cf317e
- 2020 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 41,263 miles. Price: £15,499, £1,496 less than this car. Dealer: HPL Preston in Preston. AskCar page: https://askcar.co.uk/car/audi-a3-2020-888a045696a2
Browse all Audi A3 cars for sale · 2020 Audi A3 price guide
More like this
- Used Audi A3 S Line prices
- Used Audi A3 for sale under £20,000
- Used manual Audi A3 for sale
- Used petrol Audi A3 for sale
- Used Audi A3 for sale near Kilmarnock
As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.