2018 Audi A5 3.0 TDI S Line
Price: £15,495. Good value: £1,670 (9%) under the AskCar estimate of £17,165, 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: 3.0 TDI S Line Tiptronic 4WD Euro 6 2dr (281 bhp)
- Year: 2018
- Mileage: 70,386 miles
- Fuel: Diesel
- Body: Coupe, 2 doors, 4 seats
- Engine: 3.0 litres, 281 bhp
- Gearbox: Automatic (Tiptronic)
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 143 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 Audi A5 S Line has covered 70,386 miles. Its asking price of £15,495 is £1,670 below the AskCar estimate of £17,165. The AskCar estimate uses 1,830 UK dealer adverts for the Audi A5, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 13 days ago. The latest recorded MOT expiry date is 26 September 2026, which has passed. Confirm its status with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Thomas Devlin Car Sales, based in Randalstown. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Good value: £1,670 (9%) under the AskCar estimate of £17,165.
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.
Time on sale
This 2018 Audi A5 has been on sale for at least 13 days.
Price history
AskCar first saw this advert on 20 October 2026 at £15,495. 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: the latest record we hold ran out on 26 September 2026; ask the dealer for the current MOT.
It has had 3 MOTs. The latest, on 27 September 2025, passed.
There were no advisories at the latest test.
Mileage at that test: 60,676 miles, which matches the advertised 70,386 miles.
Advertised mileage is about 1,500 miles lower than the median mileage of a 2018 Audi A5 on AskCar.
Similar cars
3 other 2018 Audi A5 S Line 3.0 diesel automatic coupes are for sale at UK dealers, from £9,695 to £12,990, as of 2 November 2026.
The 3 closest to this car in mileage:
- 2018 Audi A5 S Line, 3.0 diesel coupe, red. Mileage: 69,472 miles. Price: £12,990, £2,505 less than this car. Dealer: Toccar in Barton-upon-Humber. AskCar page: https://askcar.co.uk/car/audi-a5-2018-54578aebfa8d
- 2018 Audi A5 S Line, 3.0 diesel coupe, white. Mileage: 94,177 miles. Price: £11,994, £3,501 less than this car. Dealer: Car Vault in Welwyn Garden City. AskCar page: https://askcar.co.uk/car/audi-a5-2018-da4d2f3246d8
- 2018 Audi A5 S Line, 3.0 diesel coupe, grey. Mileage: 105,000 miles. Price: £9,695, £5,800 less than this car. Dealer: Station Road Automotives in Leicester. AskCar page: https://askcar.co.uk/car/audi-a5-2018-c527a88c45ed
Browse all Audi A5 cars for sale · 2018 Audi A5 price guide
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Photos
17 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.