2020 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI 35 S Line S tronic FWD Euro 6 (s/s) 4dr (148 bhp)
• Year: 2020
• Mileage: 26,204 miles
• Fuel: Petrol, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 131 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 26,204 miles on the clock, this 2020 Audi A3 S Line has done roughly 23,800 fewer miles than a typical 2020 Audi A3. The AskCar estimate for this car is £19,610. It is priced at £19,499, which is £111 below that estimate. The AskCar estimate uses 6,620 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. Its advertised mileage matches the government's MOT record. The seller is Thurlow Nunn Norwich, based in Norwich. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £111 (under 1%) under the AskCar estimate of £19,610.

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 6,620 priced Audi A3 adverts across different ages and specifications, as of 8 November 2026.

A 2020 Audi A3 with the 1.5 petrol engine is typically advertised at £15,900: the median of the 149 for sale on AskCar, as of 8 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: 261 of the 496 first advertised between 8 July 2026 and 5 October 2026.

Price history

AskCar first saw this advert on 8 November 2026 at £19,499. 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 8 November 2026: valid until 11 August 2027.

It has had 5 MOTs. The latest, on 12 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 25,478 miles, which matches the advertised 26,204 miles.

Advertised mileage is about 23,800 miles lower than the median mileage of a 2020 Audi A3 on AskCar.

Similar cars

13 other 2020 Audi A3 S Line 1.5 petrol automatic saloons are for sale at UK dealers, from £13,790 to £18,900, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2020 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 22,000 miles. Price: £16,490, £3,009 less than this car. Dealer: Swift Cars in Blackwood. AskCar page: https://askcar.co.uk/car/audi-a3-2020-95135ff8fcdb
• 2020 Audi A3 S Line, 1.5 petrol saloon, blue. Mileage: 35,520 miles. Price: £15,495, £4,004 less than this car. Dealer: V12 Sports & Classics Ltd -Worksop in Worksop. AskCar page: https://askcar.co.uk/car/audi-a3-2020-1fac43c63c98
• 2020 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 36,684 miles. Price: £18,900, £599 less than this car. Dealer: Sytner Select Swindon in Swindon. AskCar page: https://askcar.co.uk/car/audi-a3-2020-47bd0de1a310

• The nearest: 2020 Audi A3 S Line, 1.5 petrol saloon, black, 3 miles from this car. Mileage: 98,000 miles. Price: £13,790, £5,709 less than this car. Dealer: Brooke MOT Centre BMC Car Sales Group in Norwich. AskCar page: https://askcar.co.uk/car/audi-a3-2020-7f85c3b9c3e8