2018 Audi A4 1.4 TFSI S Line

Price: £12,699. Fair price: £159 (1%) over the AskCar estimate of £12,540, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,428 priced Audi A4 adverts on AskCar as of 2 November 2026.

AskCar lists 1,493 used Audi A4 from 984 UK dealerships, as of 2 November 2026.

Overview

  • Make: Audi
  • Model: A4
  • Trim: S Line
  • Version: 1.4 TFSI S Line Manual FWD Euro 6 (s/s) 4dr (148 bhp)
  • Year: 2018
  • Mileage: 40,204 miles
  • Fuel: Petrol
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 1.4 litres, 148 bhp
  • Gearbox: Manual
  • Drive: Front-wheel drive
  • Colour: Grey
  • CO2: 128 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A4 S Line is advertised with 40,204 miles, approximately 34,800 below the typical mileage for its age. Priced at £12,699, it is advertised £159 above the AskCar estimate of £12,540. To work out the AskCar estimate, we analyse UK dealer adverts for 1,428 Audi A4 cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 108 days, and its asking price has been cut by £1,200. Its advertised mileage matches the government's MOT record. The seller is Pinetree Car Superstore - Tonypandy, based in Tonypandy. 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: £159 (1%) over the AskCar estimate of £12,540.

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 1,428 priced Audi A4 adverts across different ages and specifications, as of 2 November 2026.

A 2018 Audi A4 with the 1.4 petrol engine is typically advertised at £11,000: the median of the 59 for sale on AskCar, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2018 Audi A4 has been on sale for at least 108 days, and its asking price has been cut by £1,200. About half of 2018 Audi A4 cars are gone from sale within a month of being advertised: 73 of the 145 first advertised between 11 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 17 July 2026 at £13,899. Its asking price is now £12,699, £1,200 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

  • 18 July 2026: £13,899
  • 30 July 2026: £12,999
  • 28 October 2026: £12,699

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 21 November 2026.

It has had 5 MOTs. The latest, on 12 November 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 37,423 miles, which matches the advertised 40,204 miles.

Advertised mileage is about 34,800 miles lower than the median mileage of a 2018 Audi A4 on AskCar.

Similar cars

19 other 2018 Audi A4 S Line 1.4 petrol manual saloons are for sale at UK dealers, from £8,450 to £13,120, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2018 Audi A4 S Line, 1.4 petrol saloon, grey. Mileage: 43,000 miles. Price: £12,490, £209 less than this car. Dealer: German Motors in Leeds. AskCar page: https://askcar.co.uk/car/audi-a4-2018-3ed5ab73481a
  • 2018 Audi A4 S Line, 1.4 petrol saloon, black. Mileage: 37,151 miles. Price: £13,000, £301 more than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/audi-a4-2018-e9e2304afc6e
  • 2018 Audi A4 S Line, 1.4 petrol saloon, white. Mileage: 35,320 miles. Price: £13,120, £421 more than this car. Dealer: Evans Halshaw Vauxhall Wakefield in Wakefield. AskCar page: https://askcar.co.uk/car/audi-a4-2018-6fd4a6cd9f44
  • The nearest: 2018 Audi A4 S Line, 1.4 petrol saloon, black, 15 miles from this car. Mileage: 84,943 miles. Price: £9,795, £2,904 less than this car. Dealer: RTM Motors Cardiff in Cardiff. AskCar page: https://askcar.co.uk/car/audi-a4-2018-0fb8842ff1bc

Browse all Audi A4 cars for sale · 2018 Audi A4 price guide

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Photos

38 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.