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: 24,700 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 24,700 miles on the clock. The AskCar estimate for this car is £15,651. It is priced at £14,995, which is £656 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 207 Audi A5 Cabriolet cars across different ages and specifications. We first recorded this advert 161 days ago, and its asking price has since fallen by £1,000. The advertised mileage is lower than the latest MOT reading of 27,378 miles. Ask the dealer to explain. Its MOT is recorded as valid until 29 January 2027. The seller is Longmans Motors, based in Basildon. 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: £656 (4%) under the AskCar estimate of £15,651.

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 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £15,995. Its asking price is now £14,995, £1,000 less. The latest price cut was seen on 26 October 2026.

Price changes recorded:

• 29 May 2026: £15,995
• 26 October 2026: £14,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 29 January 2027.

It has had 6 MOTs. The latest, on 26 January 2026, passed.

Advisories at the latest test: offside rear seatbelt slightly twisted; nearside rear seatbelt slightly twisted; undertray fitted to vehicle at time of test; and 4 more.

Mileage at that test: 27,378 miles. The advert says 24,700 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 31,300 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, grey. Mileage: 28,000 miles. Price: £19,940, £4,945 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, black. Mileage: 37,409 miles. Price: £14,150, £845 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-008e9a250ae8
• 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, white. Mileage: 44,069 miles. Price: £13,100, £1,895 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-4860ea0136d6