2018 Audi A5 Cabriolet 2.0 TFSI S Line

Overview

• Make: Audi
• Model: A5 Cabriolet
• Trim: S Line
• Version: 2.0 TFSI S Line S tronic FWD Euro 6 (s/s) 2dr (187 bhp)
• Year: 2018
• Mileage: 29,540 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 133 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 29,540 miles on the clock, this 2018 Audi A5 Cabriolet S Line has done roughly 18,000 fewer miles than a typical 2018 Audi A5 Cabriolet. Its asking price of £16,995 is £919 above the AskCar estimate of £16,076. The AskCar estimate uses UK dealer asking prices, including 211 Audi A5 Cabriolet adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 34 days. Its advertised mileage matches the government's MOT record. It is advertised by Rodden Road Cars in Frome. 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: £919 (5%) over the AskCar estimate of £16,076.

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 2018 Audi A5 Cabriolet with the 2.0 petrol engine is typically advertised at £14,800: the median of the 20 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Audi A5 Cabriolet has been on sale for at least 34 days.

Price history

AskCar first saw this advert on 29 September 2026 at £16,995. 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 2 November 2026: valid until 7 November 2026.

It has had 6 MOTs. The latest, on 27 October 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 24,689 miles, which matches the advertised 29,540 miles.

Advertised mileage is about 18,000 miles lower than the median mileage of a 2018 Audi A5 Cabriolet on AskCar.

Similar cars

6 other 2018 Audi A5 Cabriolet S Line 2.0 petrol automatic convertibles are for sale at UK dealers, from £10,000 to £20,899, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, grey. Mileage: 28,050 miles. Price: £20,899, £3,904 more than this car. Dealer: Eastern Western Motor Group Car Deal Warehouse Superstore Newbridge in Edinburgh. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-b1336936f687
• 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, black. Mileage: 32,589 miles. Price: £16,790, £205 less than this car. Dealer: NFS Autos in Bromley. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-07251ce64b7b
• 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, grey. Mileage: 47,700 miles. Price: £15,599, £1,396 less than this car. Dealer: Fords Of Winsford Car Supermarket in Winsford. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-0913e5292495

• The nearest: 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, white, 62 miles from this car. Mileage: 56,000 miles. Price: £15,590, £1,405 less than this car. Dealer: Stratus in Basingstoke. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-db9c9f417bc3