2020 Audi A3 1.5 TFSI CoD S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI CoD 35 S Line S tronic FWD Euro 6 (s/s) 4dr (148 bhp)
• Year: 2020
• Mileage: 51,334 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 117 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Audi A3 S Line has covered 51,334 miles. Its asking price of £14,450 is £1,471 below the AskCar estimate of £15,921. The AskCar estimate uses UK dealer asking prices, including 6,542 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 45 days ago, and its asking price has since fallen by £650. Its advertised mileage matches the government's MOT record. You can find this car at Car Planet Watford in Rickmansworth. 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

Good value: £1,471 (9%) under the AskCar estimate of £15,921.

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 1.5 petrol engine is typically advertised at £16,000: the median of the 134 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2020 Audi A3 has been on sale for at least 45 days.

Price history

AskCar first saw this advert on 18 September 2026 at £15,100. Its asking price is now £14,450, £650 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 18 September 2026: £15,100
• 16 October 2026: £14,800
• 21 October 2026: £14,650
• 28 October 2026: £14,450

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 26 March 2027.

It failed its MOT on 27 March 2026 (nearside front headlamp aim too low; offside front headlamp aim too low) and passed later the same day.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge worn inner tread... strong advise; nearside front tyre has a cut but not deep enough to reach the ply or cords outer wall.

Mileage at that test: 47,348 miles, which matches the advertised 51,334 miles.

Advertised mileage is about 900 miles higher than the median mileage of a 2020 Audi A3 on AskCar.

Similar cars

12 other 2020 Audi A3 S Line 1.5 petrol automatic saloons are for sale at UK dealers, from £13,990 to £21,200, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2020 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 54,308 miles. Price: £16,921, £2,471 more than this car. Dealer: Lookers Audi Glasgow in Glasgow. AskCar page: https://askcar.co.uk/car/audi-a3-2020-870fd3b88905
• 2020 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 54,806 miles. Price: £16,030, £1,580 more than this car. Dealer: Evans Halshaw MG Banbury in Banbury. AskCar page: https://askcar.co.uk/car/audi-a3-2020-d973fb48c7f9
• 2020 Audi A3 S Line, 1.5 petrol saloon, white. Mileage: 44,534 miles. Price: £16,785, £2,335 more than this car. Dealer: Autochoice Car Supermarket in Blackburn. AskCar page: https://askcar.co.uk/car/audi-a3-2020-abb83743ad6a

• The nearest: 2020 Audi A3 S Line, 1.5 petrol saloon, grey, 27 miles from this car. Mileage: 4,600 miles. Price: £21,200, £6,750 more than this car. Dealer: Marshall Motor Group Bexley Audi in Bexley. AskCar page: https://askcar.co.uk/car/audi-a3-2020-6c86ee2cdec7