2018 Audi A3 1.5 TFSI CoD S Line

Price: £13,995. Fair price: £1,026 (7%) over the AskCar estimate of £12,969, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,542 priced Audi A3 adverts on AskCar as of 2 November 2026.

AskCar lists 6,720 used Audi A3 from 2,302 UK dealerships, as of 2 November 2026.

Overview

  • Make: Audi
  • Model: A3
  • Trim: S Line
  • Version: 1.5 TFSI CoD 35 S Line Manual FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
  • Year: 2018
  • Mileage: 54,709 miles
  • Fuel: Petrol
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 1.5 litres, 148 bhp
  • Gearbox: Manual
  • Drive: Front-wheel drive
  • Colour: Black
  • CO2: 125 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A3 S Line has covered 54,709 miles, around 10,300 fewer miles than is typical for its age. Its asking price of £13,995 is £1,026 above the AskCar estimate of £12,969. The AskCar estimate uses UK dealer asking prices, including 6,542 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 30 days ago. Its asking price has since fallen by £1,000. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Yeomans Audi Truro, based in Truro. 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: £1,026 (7%) over the AskCar estimate of £12,969.

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 6,542 priced Audi A3 adverts across different ages and specifications, as of 2 November 2026.

A 2018 Audi A3 with the 1.5 petrol engine is typically advertised at £12,200: the median of the 142 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Audi A3 has been on sale for at least 30 days.

Price history

AskCar first saw this advert on 3 October 2026 at £14,995. Its asking price is now £13,995, £1,000 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

  • 3 October 2026: £14,995
  • 17 October 2026: £14,495
  • 30 October 2026: £13,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 7 September 2027.

It has had 6 MOTs. The latest, on 14 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 54,229 miles, which matches the advertised 54,709 miles.

Advertised mileage is about 10,300 miles lower than the median mileage of a 2018 Audi A3 on AskCar.

Similar cars

26 other 2018 Audi A3 S Line 1.5 petrol manual hatchbacks are for sale at UK dealers, from £6,990 to £15,999, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2018 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 55,198 miles. Price: £12,509, £1,486 less than this car. Dealer: Hammond Cars Ipswich in Ipswich. AskCar page: https://askcar.co.uk/car/audi-a3-2018-0d4c513e07f4
  • 2018 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 51,000 miles. Price: £12,495, £1,500 less than this car. Dealer: Cradley Heath Motor Co in Cradley Heath. AskCar page: https://askcar.co.uk/car/audi-a3-2018-4875b10805c5
  • 2018 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 50,576 miles. Price: £12,849, £1,146 less than this car. Dealer: Motorpoint Birtley in Birtley. AskCar page: https://askcar.co.uk/car/audi-a3-2018-e7b8e69e2620
  • The nearest: 2018 Audi A3 S Line, 1.5 petrol hatchback, red, 42 miles from this car. Mileage: 62,000 miles. Price: £11,495, £2,500 less than this car. Dealer: Bateman & Lynch Cars Tavistock in Tavistock. AskCar page: https://askcar.co.uk/car/audi-a3-2018-9d061738ecc1

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

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Photos

29 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.