2018 Audi A4 1.4 TFSI S Line

Price: £9,348. Fair price: £155 (1%) under the AskCar estimate of £9,503, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,427 priced Audi A4 adverts on AskCar as of 4 November 2026.

AskCar lists 1,488 used Audi A4 from 972 UK dealerships, as of 4 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: 82,900 miles
  • Fuel: Petrol
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 1.4 litres, 148 bhp
  • Gearbox: Manual
  • Drive: Front-wheel drive
  • Colour: Black
  • CO2: 128 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A4 S Line has covered 82,900 miles, around 9,000 more miles than is typical for its age. The dealer is asking £9,348, which is £155 below the AskCar estimate of £9,503. To work out the AskCar estimate, we analyse UK dealer adverts for 1,427 Audi A4 cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 107 days, and its asking price has been cut by £400. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Crescent Cars in Arlesey. 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: £155 (1%) under the AskCar estimate of £9,503.

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 1,427 priced Audi A4 adverts across different ages and specifications, as of 4 November 2026.

A 2018 Audi A4 with the 1.4 petrol engine is typically advertised at £11,100: the median of the 58 for sale on AskCar, as of 4 November 2026.

Time on sale

The dealer may accept less. This 2018 Audi A4 has been on sale for at least 107 days, and its asking price has been cut by £400. About half of 2018 Audi A4 cars are gone from sale within a month of being advertised: 76 of the 150 first advertised between 11 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 20 July 2026 at £9,748. Its asking price is now £9,348, £400 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

  • 20 July 2026: £9,748
  • 6 September 2026: £9,548
  • 22 October 2026: £9,348

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 20 April 2027.

It has had 7 MOTs. The latest, on 23 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 80,409 miles, which matches the advertised 82,900 miles.

Advertised mileage is about 9,000 miles higher than the median mileage of a 2018 Audi A4 on AskCar.

Similar cars

18 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 4 November 2026.

The 3 closest to this car in mileage:

  • 2018 Audi A4 S Line, 1.4 petrol saloon, black. Mileage: 84,943 miles. Price: £9,795, £447 more than this car. Dealer: RTM Motors Cardiff in Cardiff. AskCar page: https://askcar.co.uk/car/audi-a4-2018-0fb8842ff1bc
  • 2018 Audi A4 S Line, 1.4 petrol saloon, white. Mileage: 80,000 miles. Price: £9,491, £143 more than this car. Dealer: Fabian Motor Company in Swansea. AskCar page: https://askcar.co.uk/car/audi-a4-2018-f2be500228b1
  • 2018 Audi A4 S Line, 1.4 petrol saloon, white. Mileage: 86,200 miles. Price: £8,999, £349 less than this car. Dealer: Valley Automobiles in Haslingden. AskCar page: https://askcar.co.uk/car/audi-a4-2018-1924a2b6afe7
  • The nearest: 2018 Audi A4 S Line, 1.4 petrol saloon, black, 27 miles from this car. Mileage: 37,789 miles. Price: £12,950, £3,602 more than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/audi-a4-2018-e9e2304afc6e

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

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Photos

46 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.