2018 Audi A5 Cabriolet 3.0 TDI V6 S Line

Overview

• Make: Audi
• Model: A5 Cabriolet
• Trim: S Line
• Version: 3.0 TDI V6 S Line S tronic 4WD Euro 6 (s/s) 2dr (215 bhp)
• Year: 2018
• Mileage: 94,177 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 215 bhp
• Gearbox: Automatic (S tronic)
• Drive: Four-wheel drive
• Colour: White
• CO2: 134 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A5 Cabriolet S Line is advertised with 94,177 miles, approximately 38,200 above the typical mileage for its age. The dealer is asking £11,994, which is £666 below the AskCar estimate of £12,660. 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 75 days ago, the asking price has dropped by £1,200. Its advertised mileage matches the government's MOT record. It is advertised by Car Vault in Welwyn Garden City. 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: £666 (5%) under the AskCar estimate of £12,660.

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.

Time on sale

This 2018 Audi A5 Cabriolet has been on sale for at least 75 days.

Price history

AskCar first saw this advert on 22 August 2026 at £13,194. Its asking price is now £11,994, £1,200 less. The latest price cut was seen on 21 October 2026.

Price changes recorded:

• 22 August 2026: £13,194
• 19 September 2026: £12,794
• 3 October 2026: £12,194
• 21 October 2026: £11,994

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 15 September 2027.

It has had 7 MOTs. The latest, on 22 August 2026, passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge.

Mileage at that test: 94,327 miles, which matches the advertised 94,177 miles.

Advertised mileage is about 38,200 miles higher than the median mileage of a 2018 Audi A5 Cabriolet on AskCar.

Similar cars

2 other 2018 Audi A5 Cabriolet S Line 3.0 diesel automatic convertibles are for sale at UK dealers, from £10,699 to £11,500, as of 5 November 2026.

The 2 closest to this car in mileage:

• 2018 Audi A5 Cabriolet S Line, 3.0 diesel convertible, white. Mileage: 97,000 miles. Price: £11,500, £494 less than this car. Dealer: Leaside Cars in Hemel Hempstead. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-9291167e9b78
• 2018 Audi A5 Cabriolet S Line, 3.0 diesel convertible, black. Mileage: 119,996 miles. Price: £10,699, £1,295 less than this car. Dealer: AL Prestige Cars in Southampton. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2018-3be28785cd10