2018 Audi A3 Cabriolet 1.5 S Line

Overview

• Make: Audi
• Model: A3 Cabriolet
• Trim: S Line
• Version: 1.5 TFSI S Line S tronic FWD Euro 6 2dr (147 bhp)
• Year: 2018
• Mileage: 84,406 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 1.5 litres, 147 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 120 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A3 Cabriolet S Line is advertised with 84,406 miles on the clock. The AskCar estimate for this car is £12,194. It is priced at £12,450, which is £256 above that estimate. The AskCar estimate draws on 232 Audi A3 Cabriolet adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 38 days ago. Its asking price has since fallen by £200. The government's MOT record matches its advertised mileage. You can find this car at NK Car Sales in Sheffield. 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: £256 (2%) over the AskCar estimate of £12,194.

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 38 days.

Price history

AskCar first saw this advert on 25 September 2026 at £12,650. Its asking price is now £12,450, £200 less. The latest price cut was seen on 2 October 2026.

Price changes recorded:

• 25 September 2026: £12,650
• 2 October 2026: £12,450

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 31 May 2027.

It has had 7 MOTs. The latest, on 14 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 84,507 miles, which matches the advertised 84,406 miles.

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: 92,953 miles. Price: £11,290, £1,160 less than this car. Dealer: Evans Halshaw Vauxhall Newport in Newport. AskCar page: https://askcar.co.uk/car/audi-a3-cabriolet-2018-3ea71be30724
• 2018 Audi A3 Cabriolet S Line, 1.5 petrol convertible, white. Mileage: 37,000 miles. Price: £19,995, £7,545 more than this car. Dealer: Bedford Specialist Cars in Bedford. AskCar page: https://askcar.co.uk/car/audi-a3-cabriolet-2018-abbf129b49cb
• 2018 Audi A3 Cabriolet S Line, 1.5 petrol convertible, white. Mileage: 23,193 miles. Price: £17,199, £4,749 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/audi-a3-cabriolet-2018-2d638923e8d2

• The nearest: 2018 Audi A3 Cabriolet S Line, 1.5 petrol convertible, silver, 70 miles from this car. Mileage: 12,005 miles. Price: £20,990, £8,540 more than this car. Dealer: Stratstone Shrewsbury Audi in Shrewsbury. AskCar page: https://askcar.co.uk/car/audi-a3-cabriolet-2018-f9ae8a8b0530