2018 Audi A5 Cabriolet 2.0 TFSI S Line

Price: £12,495. Fair price: £513 (3%) under the AskCar estimate of £13,008, our expected asking price for this car from its model, age, mileage and specification, drawing on 212 priced Audi A5 Cabriolet adverts on AskCar as of 4 November 2026.

AskCar lists 223 used Audi A5 Cabriolet from 197 UK dealerships, as of 4 November 2026.

Overview

  • Make: Audi
  • Model: A5 Cabriolet
  • Trim: S Line
  • Version: 2.0 TFSI S Line Manual FWD Euro 6 (s/s) 2dr (187 bhp)
  • Year: 2018
  • Mileage: 58,545 miles
  • Fuel: Petrol
  • Body: Convertible, 2 doors, 4 seats
  • Engine: 2.0 litres, 187 bhp
  • Gearbox: Manual
  • Drive: Front-wheel drive
  • Colour: Grey
  • CO2: 137 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A5 Cabriolet S Line is advertised with 58,545 miles, approximately 10,800 above the typical mileage for its age. Its asking price of £12,495 is £513 below the AskCar estimate of £13,008. The AskCar estimate uses 212 UK dealer adverts for the Audi A5 Cabriolet, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert today. Its advertised mileage matches the government's MOT record. It is advertised by H Tones Oxford Garage in Hartlepool. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £513 (3%) under the AskCar estimate of £13,008.

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 212 priced Audi A5 Cabriolet adverts across different ages and specifications, as of 4 November 2026.

A 2018 Audi A5 Cabriolet with the 2.0 petrol engine is typically advertised at £14,600: the median of the 21 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2018 Audi A5 Cabriolet advertised today.

Price history

AskCar first saw this advert on 4 November 2026 at £12,495. 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 4 November 2026: valid until 26 February 2027.

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

There were no advisories at the latest test.

Mileage at that test: 52,801 miles, which matches the advertised 58,545 miles.

Advertised mileage is about 10,800 miles higher than the median mileage of a 2018 Audi A5 Cabriolet on AskCar.

Similar cars

7 other 2018 Audi A5 Cabriolet S Line 2.0 petrol manual convertibles are for sale at UK dealers, from £11,700 to £19,940, as of 4 November 2026.

The 3 closest to this car in mileage:

  • 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, black. Mileage: 60,500 miles. Price: £11,700, £795 less than this car. Dealer: Carbase Bristol in Bristol. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-1941fb21162f
  • 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, black. Mileage: 47,319 miles. Price: £14,550, £2,055 more than this car. Dealer: Group 1 Automotive Stansted Audi in Bishop's Stortford. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-acb0ad91b924
  • 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, white. Mileage: 44,069 miles. Price: £13,100, £605 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-4860ea0136d6
  • The nearest: 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, black, 184 miles from this car. Mileage: 75,686 miles. Price: £11,995, £500 less than this car. Dealer: Shelldrakes Specialist Cars in Shefford. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-a8fd146f94d2

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

More like this

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.