2018 Audi A4 1.4 TFSI S Line

Overview

• Make: Audi
• Model: A4
• Trim: S Line
• Version: 1.4 TFSI S Line S tronic FWD Euro 6 (s/s) 4dr (148 bhp)
• Year: 2018
• Mileage: 73,887 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.4 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 126 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A4 S Line is advertised with 73,887 miles on the clock. The dealer is asking £11,250, which is £79 below the AskCar estimate of £11,329. To work out the AskCar estimate, we analyse UK dealer adverts for 1,428 Audi A4 cars across different ages and specifications. It first appeared in our advert records 10 days ago. Its advertised mileage matches the government's MOT record. It is advertised by GH Motor Group in Chepstow. 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: £79 (under 1%) under the AskCar estimate of £11,329.

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

This 2018 Audi A4 has been on sale for at least 10 days.

Price history

AskCar first saw this advert on 23 October 2026 at £11,250. 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 2 November 2026: valid until 30 March 2027.

It failed its MOT on 19 March 2026 (nearside rear tyre tread pattern not visible over the whole tread area when minimum depth required is 1.0mm; offside rear tyre tread pattern not visible over the whole tread area when minimum depth required is 1.0mm; nearside rear tyre has a tear, caused by separation or partial failure of its structure) and passed later the same day.

Advisories at the latest test: rear registration plate deteriorated but not likely to be misread.

Mileage at that test: 68,600 miles, which matches the advertised 73,887 miles.

Advertised mileage is about 1,100 miles lower than the median mileage of a 2018 Audi A4 on AskCar.

Similar cars

4 other 2018 Audi A4 S Line 1.4 petrol automatic saloons are for sale at UK dealers, from £13,495 to £16,990, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A4 S Line, 1.4 petrol saloon, black. Mileage: 48,586 miles. Price: £13,495, £2,245 more than this car. Dealer: Group 1 Assured Norwich in Norwich. AskCar page: https://askcar.co.uk/car/audi-a4-2018-ab8677c9a911
• 2018 Audi A4 S Line, 1.4 petrol saloon, white. Mileage: 46,090 miles. Price: £13,750, £2,500 more than this car. Dealer: The Motoring Centre in Royal Leamington Spa. AskCar page: https://askcar.co.uk/car/audi-a4-2018-77abe5da1f69
• 2018 Audi A4 S Line, 1.4 petrol saloon, black. Mileage: 44,132 miles. Price: £14,400, £3,150 more than this car. Dealer: Group 1 Automotive Hatfield Audi in Hatfield. AskCar page: https://askcar.co.uk/car/audi-a4-2018-afe7f3895f40