2020 Audi A3 2.0 TDI S Line
Price: £13,890. Good value: £1,585 (10%) under the AskCar estimate of £15,475, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,542 priced Audi A3 adverts on AskCar as of 2 November 2026.
AskCar lists 6,720 used Audi A3 from 2,302 UK dealerships, as of 2 November 2026.
Overview
- Make: Audi
- Model: A3
- Trim: S Line
- Version: 2.0 TDI 35 S Line Manual FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
- Year: 2020
- Mileage: 49,397 miles
- Fuel: Diesel
- Body: Hatchback, 5 doors, 5 seats
- Engine: 2.0 litres, 148 bhp
- Gearbox: Manual
- Drive: Front-wheel drive
- Colour: White
- CO2: 115 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2020 Audi A3 S Line is advertised with 49,397 miles on the clock. Priced at £13,890, it is advertised £1,585 below the AskCar estimate of £15,475. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. It first appeared in our advert records 3 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Days Motorpark Cardiff, based in Cardiff. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Good value: £1,585 (10%) under the AskCar estimate of £15,475.
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 6,542 priced Audi A3 adverts across different ages and specifications, as of 2 November 2026.
A 2020 Audi A3 with the 2.0 diesel engine is typically advertised at £16,800: the median of the 52 for sale on AskCar, as of 2 November 2026.
Time on sale
AskCar first saw this 2020 Audi A3 advertised 3 days ago. About half of 2020 Audi A3 cars are gone from sale within a month of being advertised: 226 of the 433 first advertised between 8 July 2026 and 29 September 2026.
Price history
AskCar first saw this advert on 30 October 2026 at £13,890. 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: valid until 13 February 2027.
It has had 4 MOTs. The latest, on 10 February 2026, passed.
Advisories at the latest test: nearside front brake disc worn, but not excessively; offside front brake disc worn, but not excessively; offside front brake pad(s) wearing thin; and 3 more.
Mileage at that test: 44,771 miles, which matches the advertised 49,397 miles.
Advertised mileage is about 1,000 miles lower than the median mileage of a 2020 Audi A3 on AskCar.
Similar cars
2 other 2020 Audi A3 S Line 2.0 diesel manual hatchbacks are for sale at UK dealers, from £11,795 to £15,490, as of 2 November 2026.
The 2 closest to this car in mileage:
- 2020 Audi A3 S Line, 2.0 diesel hatchback, grey. Mileage: 54,143 miles. Price: £15,490, £1,600 more than this car. Dealer: Whitley Bay Motors in Washington. AskCar page: https://askcar.co.uk/car/audi-a3-2020-ecac7ba12530
- 2020 Audi A3 S Line, 2.0 diesel hatchback, black. Mileage: 83,067 miles. Price: £11,795, £2,095 less than this car. Dealer: Prestige Motors Kent in Sevenoaks. AskCar page: https://askcar.co.uk/car/audi-a3-2020-dfa16760bc07
Browse all Audi A3 cars for sale · 2020 Audi A3 price guide
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- Used Audi A3 for sale near Cardiff
Photos
2 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.