2018 Audi A5 Cabriolet 3.0 TDI V6 S Line

Price: £11,995. Fair price: £750 (5%) under the AskCar estimate of £12,745, our expected asking price for this car from its model, age, mileage and specification, drawing on 211 priced Audi A5 Cabriolet adverts on AskCar as of 2 November 2026.

AskCar lists 220 used Audi A5 Cabriolet from 194 UK dealerships, as of 2 November 2026.

Overview

  • Make: Audi
  • Model: A5 Cabriolet
  • Trim: S Line
  • Version: 3.0 TDI V6 S Line S tronic 4WD Euro 6 (s/s) 2dr (215 bhp)
  • Year: 2018
  • Mileage: 97,000 miles
  • Fuel: Diesel
  • Body: Convertible, 2 doors, 4 seats
  • Engine: 3.0 litres, 215 bhp
  • Gearbox: Automatic (S tronic)
  • Drive: Four-wheel drive
  • Colour: White
  • CO2: 134 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 97,000 miles on the clock, this 2018 Audi A5 Cabriolet S Line has done roughly 49,500 more miles than a typical 2018 Audi A5 Cabriolet. The dealer is asking £11,995, which is £750 below the AskCar estimate of £12,745. To work out the AskCar estimate, we analyse UK dealer adverts for 211 Audi A5 Cabriolet cars across different ages and specifications. The asking price is now £1,000 lower than when we first recorded the advert 69 days ago. Its advertised mileage matches the government's MOT record. You can find this car at Leaside Cars in Hemel Hempstead. 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: £750 (5%) under the AskCar estimate of £12,745.

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.

Time on sale

This 2018 Audi A5 Cabriolet has been on sale for at least 69 days.

Price history

AskCar first saw this advert on 25 August 2026 at £12,995. Its asking price is now £11,995, £1,000 less. The latest price cut was seen on 14 October 2026.

Price changes recorded:

  • 25 August 2026: £12,995
  • 10 October 2026: £12,500
  • 14 October 2026: £11,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 19 August 2027.

It has had 6 MOTs. The latest, on 27 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 97,258 miles, which matches the advertised 97,000 miles.

Advertised mileage is about 49,500 miles higher than the median mileage of a 2018 Audi A5 Cabriolet on AskCar.

Similar cars

1 other 2018 Audi A5 Cabriolet S Line 3.0 diesel automatic convertible is for sale at UK dealers, as of 2 November 2026.

The closest to this car in mileage:

  • 2018 Audi A5 Cabriolet S Line, 3.0 diesel convertible, black. Mileage: 119,996 miles. Price: £10,699, £1,296 less than this car. Dealer: AL Prestige Cars in Southampton. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-3be28785cd10

Browse all Audi A5 Cabriolet cars for sale · 2018 Audi A5 Cabriolet price guide

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Photos

41 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.