2018 Audi A5 Cabriolet 2.0 TDI S Line

Price: £11,990. Fair price: £120 (1%) over the AskCar estimate of £11,870, 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: 2.0 TDI S Line S tronic FWD Euro 6 (s/s) 2dr (187 bhp)
  • Year: 2018
  • Mileage: 89,000 miles
  • Fuel: Diesel
  • Body: Convertible, 2 doors, 4 seats
  • Engine: 2.0 litres, 187 bhp
  • Gearbox: Automatic (S tronic)
  • Drive: Front-wheel drive
  • Colour: White
  • CO2: 122 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A5 Cabriolet S Line is advertised with 89,000 miles, approximately 41,500 above the typical mileage for its age. Its asking price of £11,990 is £120 above the AskCar estimate of £11,870. The AskCar estimate draws on 211 Audi A5 Cabriolet adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 158 days ago. Its asking price has since fallen by £700. The recorded MOT expired on 16 June 2026, so ask the dealer whether it has been renewed. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at SR Motor Company in Glasgow. 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: £120 (1%) over the AskCar estimate of £11,870.

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 diesel 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 158 days.

Price history

AskCar first saw this advert on 28 May 2026 at £12,690. Its asking price is now £11,990, £700 less. The latest price cut was seen on 7 October 2026.

Price changes recorded:

  • 29 May 2026: £12,690
  • 7 October 2026: £11,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 16 June 2026; ask the dealer for the current MOT.

It has had 7 MOTs. The latest, on 17 June 2025, passed.

Advisories at the latest test: nearside side damaged; nearside rear tyre has a cut but not deep enough to reach the ply or cords; front shock absorbers has light misting of oil; and 2 more.

Mileage at that test: 79,474 miles, which matches the advertised 89,000 miles.

Advertised mileage is about 41,500 miles higher than the median mileage of a 2018 Audi A5 Cabriolet on AskCar.

Similar cars

3 other 2018 Audi A5 Cabriolet S Line 2.0 diesel automatic convertibles are for sale at UK dealers, from £12,200 to £17,950, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2018 Audi A5 Cabriolet S Line, 2.0 diesel convertible, grey. Mileage: 81,213 miles. Price: £12,200, £210 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-ebcd7b9e75ff
  • 2018 Audi A5 Cabriolet S Line, 2.0 diesel convertible, grey. Mileage: 56,731 miles. Price: £13,995, £2,005 more than this car. Dealer: First Time Motors in Portsmouth. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-a4a24cae0f46
  • 2018 Audi A5 Cabriolet S Line, 2.0 diesel convertible, black. Mileage: 36,011 miles. Price: £17,950, £5,960 more than this car. Dealer: M B Cars London in St Albans. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-56365cfca713

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

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Photos

28 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.