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: 75,686 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

With 75,686 miles on the clock, this 2018 Audi A5 Cabriolet S Line has done roughly 19,700 more miles than a typical 2018 Audi A5 Cabriolet. The dealer is asking £11,995, which is £606 above the AskCar estimate of £11,389. To work out the AskCar estimate, we analyse UK dealer adverts for 207 Audi A5 Cabriolet cars across different ages and specifications. Since we first spotted the advert 41 days ago, the asking price has dropped by £500. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Shelldrakes Specialist Cars in Shefford. 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: £606 (5%) over the AskCar estimate of £11,389.

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 41 days.

Price history

AskCar first saw this advert on 25 September 2026 at £12,495. Its asking price is now £11,995, £500 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 25 September 2026: £12,495
• 28 September 2026: £12,295
• 29 October 2026: £11,995

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 March 2027.

It has had 6 MOTs. The latest, on 30 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 75,624 miles, which matches the advertised 75,686 miles.

Advertised mileage is about 19,700 miles higher 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, black. Mileage: 60,500 miles. Price: £11,700, £295 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, grey. Mileage: 58,545 miles. Price: £12,495, £500 more than this car. Dealer: H Tones Oxford Garage in Hartlepool. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-35895f7af5e9
• 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, white. Mileage: 44,069 miles. Price: £13,100, £1,105 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, grey, 21 miles from this car. Mileage: 28,000 miles. Price: £19,940, £7,945 more than this car. Dealer: Smith Premier in Hemel Hempstead. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-722deeb75c38