2018 Audi A3 2.0 TDI S Line

Price: £10,490. Fair price: £304 (2%) under the AskCar estimate of £10,794, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,630 priced Audi A3 adverts on AskCar as of 4 November 2026.

AskCar lists 6,774 used Audi A3 from 2,309 UK dealerships, as of 4 November 2026.

Overview

  • Make: Audi
  • Model: A3
  • Trim: S Line
  • Version: 2.0 TDI S Line Manual FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
  • Year: 2018
  • Mileage: 88,750 miles
  • Fuel: Diesel
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 2.0 litres, 148 bhp
  • Gearbox: Manual
  • Drive: Front-wheel drive
  • Colour: Blue
  • CO2: 112 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

At 88,750 miles, this 2018 Audi A3 S Line has covered about 23,800 more miles than other 2018 Audi A3 cars. Priced at £10,490, it is advertised £304 below the AskCar estimate of £10,794. The AskCar estimate uses UK dealer asking prices, including 6,630 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 65 days. The government's MOT record matches its advertised mileage. You can find this car at Oakwood Prestige Cars in Trowbridge. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £304 (2%) under the AskCar estimate of £10,794.

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 6,630 priced Audi A3 adverts across different ages and specifications, as of 4 November 2026.

A 2018 Audi A3 with the 2.0 diesel engine is typically advertised at £13,300: the median of the 64 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 Audi A3 has been on sale for at least 65 days.

Price history

AskCar first saw this advert on 31 August 2026 at £10,490. 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 4 November 2026: valid until 28 March 2027.

It has had 6 MOTs. The latest, on 27 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 84,660 miles, which matches the advertised 88,750 miles.

Advertised mileage is about 23,800 miles higher than the median mileage of a 2018 Audi A3 on AskCar.

Similar cars

2 other 2018 Audi A3 S Line 2.0 diesel manual hatchbacks are for sale at UK dealers, from £8,750 to £14,999, as of 4 November 2026.

The 2 closest to this car in mileage:

  • 2018 Audi A3 S Line, 2.0 diesel hatchback, blue. Mileage: 107,000 miles. Price: £8,750, £1,740 less than this car. Dealer: MF Motors (Norwich) in Flordon. AskCar page: https://askcar.co.uk/car/audi-a3-2018-ca0447336780
  • 2018 Audi A3 S Line, 2.0 diesel hatchback, grey. Mileage: 29,300 miles. Price: £14,999, £4,509 more than this car. Dealer: Daniels Vehicle Sales in Malvern. AskCar page: https://askcar.co.uk/car/audi-a3-2018-d8b3baa5044b

Browse all Audi A3 cars for sale · 2018 Audi A3 price guide

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Photos

39 photos of this car are on its AskCar page.

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.