2018 Audi A5 2.0 TDI ultra S Line

Price: £15,400. Good value: £1,593 (9%) under the AskCar estimate of £16,993, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,830 priced Audi A5 adverts on AskCar as of 2 November 2026.

AskCar lists 1,887 used Audi A5 from 1,070 UK dealerships, as of 2 November 2026.

Overview

  • Make: Audi
  • Model: A5
  • Trim: S Line
  • Version: 2.0 TDI ultra S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (187 bhp)
  • Year: 2018
  • Mileage: 53,000 miles
  • Fuel: Diesel
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 2.0 litres, 187 bhp
  • Gearbox: Automatic (S tronic)
  • Drive: Front-wheel drive
  • Colour: Grey
  • CO2: 112 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

At 53,000 miles, this 2018 Audi A5 S Line has covered about 18,900 fewer miles than other 2018 Audi A5 cars. Its asking price of £15,400 is £1,593 below the AskCar estimate of £16,993. To work out the AskCar estimate, we analyse UK dealer adverts for 1,830 Audi A5 cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 103 days, and its asking price is down £850. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Alistair Buchan in East Wemyss. 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

Good value: £1,593 (9%) under the AskCar estimate of £16,993.

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 1,830 priced Audi A5 adverts across different ages and specifications, as of 2 November 2026.

A 2018 Audi A5 with the 2.0 diesel engine is typically advertised at £13,900: the median of the 117 for sale on AskCar, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2018 Audi A5 has been on sale for at least 103 days, and its asking price has been cut by £850. About half of 2018 Audi A5 cars are gone from sale within a month of being advertised: 101 of the 197 first advertised between 7 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 22 July 2026 at £16,250. Its asking price is now £15,400, £850 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

  • 22 July 2026: £16,250
  • 1 August 2026: £16,000
  • 11 August 2026: £15,750
  • 20 September 2026: £15,700
  • 6 October 2026: £15,500
  • 30 October 2026: £15,400

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 19 April 2027.

It failed its MOT on 17 April 2026 (nearside front tyre has a cut in excess of the requirements deep enough to reach the ply or cords outer sidewall; nearside rear coil spring fractured or broken broken; offside rear coil spring fractured or broken broken) and passed 3 days later, on 20 April 2026.

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

Mileage at that test: 51,899 miles, which matches the advertised 53,000 miles.

Advertised mileage is about 18,900 miles lower than the median mileage of a 2018 Audi A5 on AskCar.

Similar cars

16 other 2018 Audi A5 S Line 2.0 diesel automatic hatchbacks are for sale at UK dealers, from £11,900 to £19,500, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2018 Audi A5 S Line, 2.0 diesel hatchback, silver. Mileage: 61,276 miles. Price: £16,298, £898 more than this car. Dealer: Arnold Clark Liverpool Motorstore / MG / Chery in Liverpool. AskCar page: https://askcar.co.uk/car/audi-a5-2018-2a3b16e55f40
  • 2018 Audi A5 S Line, 2.0 diesel hatchback, blue. Mileage: 61,766 miles. Price: £14,795, £605 less than this car. Dealer: G H Motors (Mansfield) in Mansfield. AskCar page: https://askcar.co.uk/car/audi-a5-2018-e30129d78065
  • 2018 Audi A5 S Line, 2.0 diesel hatchback, silver. Mileage: 41,000 miles. Price: £17,395, £1,995 more than this car. Dealer: Fir Cottage Car Sales in Mirfield. AskCar page: https://askcar.co.uk/car/audi-a5-2018-2fe1a22591c5
  • The nearest: 2018 Audi A5 S Line, 2.0 diesel hatchback, black, 143 miles from this car. Mileage: 89,400 miles. Price: £14,450, £950 less than this car. Dealer: Jack Reid Cars in Carrickfergus. AskCar page: https://askcar.co.uk/car/audi-a5-2018-620bebb84a45

Browse all Audi A5 cars for sale · 2018 Audi A5 price guide

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Photos

40 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.