2021 Audi A5 Cabriolet 2.0 TFSI S Line

Overview

• Make: Audi
• Model: A5 Cabriolet
• Trim: S Line
• Version: 2.0 35 TFSI S Line S tronic FWD Euro 6 2dr (147 bhp)
• Year: 2021
• Mileage: 33,900 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 147 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 163 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A5 Cabriolet S Line is advertised with 33,900 miles, approximately 6,300 below the typical mileage for its age. Priced at £21,990, it is advertised £210 below the AskCar estimate of £22,200. The AskCar estimate uses UK dealer asking prices, including 211 Audi A5 Cabriolet adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 11 days ago, the asking price has dropped by £500. The government's MOT record matches its advertised mileage. It is advertised by BSB Automotive in Dartford. 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

Fair price: £210 (under 1%) under the AskCar estimate of £22,200.

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 211 priced Audi A5 Cabriolet adverts across different ages and specifications, as of 2 November 2026.

A 2021 Audi A5 Cabriolet with the 2.0 petrol engine is typically advertised at £22,900: the median of the 10 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 Audi A5 Cabriolet has been on sale for at least 11 days.

Price history

AskCar first saw this advert on 22 October 2026 at £22,490. Its asking price is now £21,990, £500 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 22 October 2026: £22,490
• 1 November 2026: £21,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 14 May 2027.

It has had 4 MOTs. The latest, on 13 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 32,707 miles, which matches the advertised 33,900 miles.

Advertised mileage is about 6,300 miles lower than the median mileage of a 2021 Audi A5 Cabriolet on AskCar.

Similar cars

4 other 2021 Audi A5 Cabriolet S Line 2.0 petrol automatic convertibles are for sale at UK dealers, from £22,499 to £24,400, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A5 Cabriolet S Line, 2.0 petrol convertible, blue. Mileage: 33,771 miles. Price: £23,990, £2,000 more than this car. Dealer: Safwat Cars in Southend-on-Sea. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2021-60c7e470210d
• 2021 Audi A5 Cabriolet S Line, 2.0 petrol convertible, black. Mileage: 34,730 miles. Price: £24,400, £2,410 more than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2021-f27fa7953147
• 2021 Audi A5 Cabriolet S Line, 2.0 petrol convertible, grey. Mileage: 49,791 miles. Price: £22,499, £509 more than this car. Dealer: Lookers Volvo Bishop's Stortford in Bishop's Stortford. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2021-b06a695f4e4a