2018 Audi A5 2.0 TDI S Line

Price: £19,500. Fair price: £911 (4%) over the AskCar estimate of £18,589, 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 S Line S tronic 4WD Euro 6 5dr (187 bhp)
  • Year: 2018
  • Mileage: 30,200 miles
  • Fuel: Diesel
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 2.0 litres, 187 bhp
  • Gearbox: Automatic (S tronic)
  • Drive: Four-wheel drive
  • Colour: Blue
  • CO2: 121 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 30,200 miles on the clock, this 2018 Audi A5 S Line has done roughly 41,700 fewer miles than a typical 2018 Audi A5. Its asking price of £19,500 is £911 above the AskCar estimate of £18,589. The AskCar estimate uses 1,830 UK dealer adverts for the Audi A5, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 55 days ago. Its asking price has since fallen by £1,250. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Stratstone Warrington Audi, based in Warrington. 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: £911 (4%) over the AskCar estimate of £18,589.

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

This 2018 Audi A5 has been on sale for at least 55 days.

Price history

AskCar first saw this advert on 8 September 2026 at £20,750. Its asking price is now £19,500, £1,250 less. The latest price cut was seen on 7 October 2026.

Price changes recorded:

  • 8 September 2026: £20,750
  • 11 September 2026: £19,990
  • 24 September 2026: £19,750
  • 7 October 2026: £19,490
  • 21 October 2026: £19,500

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 13 June 2027.

It has had 7 MOTs. The latest, on 6 June 2026, passed.

Advisories at the latest test: nearside front upper suspension arm pin or bush worn but not resulting in excessive movement back suspension arm bush; offside front upper suspension arm pin or bush worn but not resulting in excessive movement back suspension arm bush; rear brake pad(s) wearing thin.

Mileage at that test: 29,754 miles, which matches the advertised 30,200 miles.

Advertised mileage is about 41,700 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 £17,395, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2018 Audi A5 S Line, 2.0 diesel hatchback, silver. Mileage: 41,000 miles. Price: £17,395, £2,105 less than this car. Dealer: Fir Cottage Car Sales in Mirfield. AskCar page: https://askcar.co.uk/car/audi-a5-2018-2fe1a22591c5
  • 2018 Audi A5 S Line, 2.0 diesel hatchback, grey. Mileage: 53,000 miles. Price: £15,400, £4,100 less than this car. Dealer: Alistair Buchan in East Wemyss. AskCar page: https://askcar.co.uk/car/audi-a5-2018-91c9dc713a06
  • 2018 Audi A5 S Line, 2.0 diesel hatchback, silver. Mileage: 61,276 miles. Price: £16,298, £3,202 less than this car. Dealer: Arnold Clark Liverpool Motorstore / MG / Chery in Liverpool. AskCar page: https://askcar.co.uk/car/audi-a5-2018-2a3b16e55f40

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.