2020 Audi A3 2.0 TDI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 2.0 TDI 35 S Line S tronic FWD Euro 6 (s/s) 4dr (148 bhp)
• Year: 2020
• Mileage: 86,507 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Audi A3 S Line is advertised with 86,507 miles, approximately 36,100 above the typical mileage for its age. Its asking price of £14,998 is £1,311 above the AskCar estimate of £13,687. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. We first recorded this car for sale 1 day ago. Its advertised mileage matches the government's MOT record. The seller is Arnold Clark Glenrothes Vauxhall Fiat Abarth Leapmotor, based in Glenrothes. 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

Above the going rate: £1,311 (9%) over the AskCar estimate of £13,687.

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 1 day 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 1 November 2026 at £14,998. 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 18 October 2027.

It has had 4 MOTs. The latest, on 19 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 86,428 miles, which matches the advertised 86,507 miles.

Advertised mileage is about 36,100 miles higher than the median mileage of a 2020 Audi A3 on AskCar.

Similar cars

5 other 2020 Audi A3 S Line 2.0 diesel automatic saloons are for sale at UK dealers, from £14,999 to £18,000, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2020 Audi A3 S Line, 2.0 diesel saloon, black. Mileage: 63,397 miles. Price: £14,999, the same price as this car. Dealer: Stratstone Liverpool Audi in Liverpool. AskCar page: https://askcar.co.uk/car/audi-a3-2020-04218e84faa6
• 2020 Audi A3 S Line, 2.0 diesel saloon, grey. Mileage: 59,508 miles. Price: £16,985, £1,987 more than this car. Dealer: Listers Birmingham Audi in Birmingham. AskCar page: https://askcar.co.uk/car/audi-a3-2020-6c692897ad01
• 2020 Audi A3 S Line, 2.0 diesel saloon, blue. Mileage: 45,971 miles. Price: £16,995, £1,997 more than this car. Dealer: Hitchfields in Huddersfield. AskCar page: https://askcar.co.uk/car/audi-a3-2020-1c5b11733d40