2018 Audi A5 Cabriolet 2.0 TFSI S Line

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: 37,409 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Black
• CO2: 137 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A5 Cabriolet S Line has covered 37,409 miles, around 18,600 fewer miles than is typical for its age. The AskCar estimate for this car is £14,620. It is priced at £14,150, which is £470 below that estimate. The AskCar estimate uses 207 UK dealer adverts for the Audi A5 Cabriolet, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 15 days ago. The government's MOT record matches its advertised mileage. You can find this car at Car Planet Watford in Rickmansworth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £470 (3%) under the AskCar estimate of £14,620.

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 207 priced Audi A5 Cabriolet adverts across different ages and specifications, as of 5 November 2026.

A 2018 Audi A5 Cabriolet with the 2.0 petrol engine is typically advertised at £14,600: the median of the 20 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2018 Audi A5 Cabriolet has been on sale for at least 15 days.

Price history

AskCar first saw this advert on 21 October 2026 at £14,150. 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 5 November 2026: valid until 4 March 2027.

It has had 6 MOTs. The latest, on 5 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 32,998 miles, which matches the advertised 37,409 miles.

Advertised mileage is about 18,600 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 manual convertibles are for sale at UK dealers, from £11,700 to £19,940, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, white. Mileage: 44,069 miles. Price: £13,100, £1,050 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-4860ea0136d6
• 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, grey. Mileage: 28,000 miles. Price: £19,940, £5,790 more than this car. Dealer: Smith Premier in Hemel Hempstead. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-722deeb75c38
• 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, grey. Mileage: 24,700 miles. Price: £14,995, £845 more than this car. Dealer: Longmans Motors in Basildon. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-b6be03e14667