2018 Audi A5 Cabriolet 2.0 TFSI S Line

Overview

• Make: Audi
• Model: A5 Cabriolet
• Trim: S Line
• Version: 2.0 TFSI 40 S Line S tronic FWD Euro 6 (s/s) 2dr (187 bhp)
• Year: 2018
• Mileage: 56,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 140 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A5 Cabriolet S Line has covered 56,000 miles, around 8,500 more miles than is typical for its age. The dealer is asking £15,590, which is £795 above the AskCar estimate of £14,795. To work out the AskCar estimate, we analyse UK dealer adverts for 211 Audi A5 Cabriolet cars across different ages and specifications. We first recorded this car for sale 12 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Stratus in Hook. 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: £795 (5%) over the AskCar estimate of £14,795.

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 petrol 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 12 days.

Price history

AskCar first saw this advert on 21 October 2026 at £15,590. 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 2 November 2026: valid until 17 September 2027.

It has had 7 MOTs. The latest, on 14 September 2026, passed.

Advisories at the latest test: brake pad(s) wearing thin all.

Mileage at that test: 55,746 miles, which matches the advertised 56,000 miles.

Advertised mileage is about 8,500 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 automatic convertibles are for sale at UK dealers, from £10,000 to £20,899, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, grey. Mileage: 61,999 miles. Price: £10,000, £5,590 less than this car. Dealer: Ancoats Car Sales in Manchester. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-dd305a7389f4
• 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, grey. Mileage: 47,700 miles. Price: £15,599, the same price as this car. Dealer: Fords Of Winsford Car Supermarket in Winsford. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-0913e5292495
• 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, black. Mileage: 65,000 miles. Price: £16,650, £1,060 more than this car. Dealer: Peverel Car Company in Wickham Bishops. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-5ac3923e4124

• The nearest: 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, black, 41 miles from this car. Mileage: 32,589 miles. Price: £16,790, £1,200 more than this car. Dealer: NFS Autos in Bromley. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-07251ce64b7b