2018 Audi A4 1.4 TFSI S Line

Price: £9,795. Fair price: £432 (4%) over the AskCar estimate of £9,363, 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: 84,943 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

With 84,943 miles on the clock, this 2018 Audi A4 S Line has done roughly 11,000 more miles than a typical 2018 Audi A4. Its asking price of £9,795 is £432 above the AskCar estimate of £9,363. To work out the AskCar estimate, we analyse UK dealer adverts for 1,427 Audi A4 cars across different ages and specifications. It first appeared in our advert records 15 days ago. Its advertised mileage matches the government's MOT record. The seller is RTM Motors Cardiff, based in Cardiff. 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: £432 (4%) over the AskCar estimate of £9,363.

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

This 2018 Audi A4 has been on sale for at least 15 days.

Price history

AskCar first saw this advert on 20 October 2026 at £9,795. 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 30 May 2027.

It has had 8 MOTs. The latest, on 27 May 2026, passed.

Advisories at the latest test: rear tyre worn close to legal limit/worn on edge nsr and osr.

Mileage at that test: 79,422 miles, which matches the advertised 84,943 miles.

Advertised mileage is about 11,000 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, white. Mileage: 86,200 miles. Price: £8,999, £796 less than this car. Dealer: Valley Automobiles in Haslingden. AskCar page: https://askcar.co.uk/car/audi-a4-2018-1924a2b6afe7
  • 2018 Audi A4 S Line, 1.4 petrol saloon, black. Mileage: 82,900 miles. Price: £9,348, £447 less than this car. Dealer: Crescent Cars in Arlesey. AskCar page: https://askcar.co.uk/car/audi-a4-2018-70cbe77e9bc1
  • 2018 Audi A4 S Line, 1.4 petrol saloon, black. Mileage: 89,352 miles. Price: £8,450, £1,345 less than this car. Dealer: Arbat Motors in Bexleyheath. AskCar page: https://askcar.co.uk/car/audi-a4-2018-093b92c334c0
  • The nearest: 2018 Audi A4 S Line, 1.4 petrol saloon, grey, 15 miles from this car. Mileage: 40,204 miles. Price: £12,699, £2,904 more than this car. Dealer: Pinetree Car Superstore - Tonypandy in Tonypandy. AskCar page: https://askcar.co.uk/car/audi-a4-2018-c08b781056b6

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

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Photos

56 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.