2018 Audi A5 Cabriolet 2.0 TFSI S Line

Overview

• Make: Audi
• Model: A5 Cabriolet
• Trim: S Line
• Version: 2.0 TFSI 45 S Line S tronic 4WD Euro 6 (s/s) 2dr (242 bhp)
• Year: 2018
• Mileage: 28,050 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 242 bhp
• Gearbox: Automatic (S tronic)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 151 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 28,050 miles, this 2018 Audi A5 Cabriolet S Line has covered about 28,000 fewer miles than other 2018 Audi A5 Cabriolet cars. Priced at £20,899, it is advertised £1,169 above the AskCar estimate of £19,730. 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 69 days ago, and its asking price has since fallen by £600. The recorded MOT expired on 8 September 2026, so ask the dealer whether it has been renewed. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Eastern Western Motor Group Car Deal Warehouse Superstore Newbridge, based in Newbridge. 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: £1,169 (5%) over the AskCar estimate of £19,730.

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 69 days.

Price history

AskCar first saw this advert on 28 August 2026 at £21,499. Its asking price is now £20,899, £600 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 28 August 2026: £21,499
• 31 October 2026: £20,899

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: the latest record we hold ran out on 8 September 2026; ask the dealer for the current MOT.

It has had 5 MOTs. The latest, on 27 August 2025, passed.

Advisories at the latest test: offside front tyre slightly damaged sidewall; nearside front tyre slightly damaged/cracking or perishing 255/35/19.

Mileage at that test: 25,520 miles, which matches the advertised 28,050 miles.

Advertised mileage is about 28,000 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 automatic convertibles are for sale at UK dealers, from £10,000 to £16,995, 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: 29,540 miles. Price: £16,995, £3,904 less than this car. Dealer: Rodden Road Cars in Frome. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-cf31b86da261
• 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, black. Mileage: 32,589 miles. Price: £16,790, £4,109 less than this car. Dealer: NFS Autos in Bromley. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-07251ce64b7b
• 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, grey. Mileage: 47,700 miles. Price: £15,399, £5,500 less than this car. Dealer: Fords Of Winsford Car Supermarket in Winsford. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-0913e5292495

• The nearest: 2018 Audi A5 Cabriolet S Line, 2.0 petrol convertible, grey, 176 miles from this car. Mileage: 61,999 miles. Price: £10,000, £10,899 less than this car. Dealer: Ancoats Car Sales in Manchester. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-dd305a7389f4