2018 Audi A3 Cabriolet 1.5 TFSI CoD S Line

Overview

• Make: Audi
• Model: A3 Cabriolet
• Trim: S Line
• Version: 1.5 TFSI CoD S Line S tronic FWD Euro 6 (s/s) 2dr (148 bhp)
• Year: 2018
• Mileage: 37,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 118 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A3 Cabriolet S Line has covered 37,000 miles. Its asking price of £19,995 is £2,319 above the AskCar estimate of £17,676. The AskCar estimate draws on 232 Audi A3 Cabriolet adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 158 days ago. The seller is Bedford Specialist Cars, based in Bedford. 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: £2,319 (13%) over the AskCar estimate of £17,676.

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 232 priced Audi A3 Cabriolet adverts across different ages and specifications, as of 2 November 2026.

Time on sale

This 2018 Audi A3 Cabriolet has been on sale for at least 158 days.

Price history

AskCar first saw this advert on 28 May 2026 at £19,995. Its asking price has not changed.

Similar cars

4 other 2018 Audi A3 Cabriolet S Line 1.5 petrol automatic convertibles are for sale at UK dealers, from £11,290 to £20,990, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A3 Cabriolet S Line, 1.5 petrol convertible, white. Mileage: 23,193 miles. Price: £17,199, £2,796 less than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/audi-a3-cabriolet-2018-2d638923e8d2
• 2018 Audi A3 Cabriolet S Line, 1.5 petrol convertible, silver. Mileage: 12,005 miles. Price: £20,990, £995 more than this car. Dealer: Stratstone Shrewsbury Audi in Shrewsbury. AskCar page: https://askcar.co.uk/car/audi-a3-cabriolet-2018-f9ae8a8b0530
• 2018 Audi A3 Cabriolet S Line, 1.5 petrol convertible, grey. Mileage: 84,406 miles. Price: £12,450, £7,545 less than this car. Dealer: NK Car Sales in Sheffield. AskCar page: https://askcar.co.uk/car/audi-a3-cabriolet-2018-401883ad6307