2018 Audi A1 1.4 TFSI S Line

Overview

• Make: Audi
• Model: A1
• Trim: S Line
• Version: 1.4 TFSI S Line Manual FWD Euro 6 (s/s) 5dr Sportback (Nav) (123 bhp)
• Year: 2018
• Mileage: 42,000 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.4 litres, 123 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: White
• CO2: 119 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A1 S Line is advertised with 42,000 miles, approximately 11,700 below the typical mileage for its age. The AskCar estimate for this car is £11,328. It is priced at £11,880, which is £552 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 4,753 Audi A1 cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 82 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by T.williams Car Sales in Wirral. 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: £552 (4%) over the AskCar estimate of £11,328.

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 4,753 priced Audi A1 adverts across different ages and specifications, as of 2 November 2026.

A 2018 Audi A1 with the 1.4 petrol engine is typically advertised at £10,500: the median of the 181 for sale on AskCar, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2018 Audi A1 has been on sale for at least 82 days. About half of 2018 Audi A1 cars are gone from sale within a month of being advertised: 236 of the 450 first advertised between 10 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 12 August 2026 at £11,880. 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 13 July 2027.

It failed its MOT on 13 July 2026 (nearside rear tyre has a cut in excess of the requirements deep enough to reach the ply or cords; offside front lower suspension arm ball joint dust cover no longer prevents the ingress of dirt; nearside front windscreen wiper does not clear the windscreen effectively) and passed 1 day later, on 14 July 2026.

There were no advisories at the latest test.

Mileage at that test: 41,758 miles, which matches the advertised 42,000 miles.

Advertised mileage is about 11,700 miles lower than the median mileage of a 2018 Audi A1 on AskCar.

Similar cars

40 other 2018 Audi A1 S Line 1.4 petrol manual hatchbacks are for sale at UK dealers, from £7,697 to £13,299, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A1 S Line, 1.4 petrol hatchback, black. Mileage: 41,773 miles. Price: £11,850, the same price as this car. Dealer: Group 1 Automotive Southend Audi in Thundersley and South Benfleet. AskCar page: https://askcar.co.uk/car/audi-a1-2018-c09f36d9b677
• 2018 Audi A1 S Line, 1.4 petrol hatchback, grey. Mileage: 41,300 miles. Price: £11,995, £115 more than this car. Dealer: Jcs Vehicle Sales in Great Yarmouth. AskCar page: https://askcar.co.uk/car/audi-a1-2018-a3c5eed7bedb
• 2018 Audi A1 S Line, 1.4 petrol hatchback, grey. Mileage: 40,530 miles. Price: £11,795, £85 less than this car. Dealer: Surecar Direct in Bristol. AskCar page: https://askcar.co.uk/car/audi-a1-2018-e6ab92baf725

• The nearest: 2018 Audi A1 S Line, 1.4 petrol hatchback, black, 29 miles from this car. Mileage: 44,427 miles. Price: £9,899, £1,981 less than this car. Dealer: Swansway Garages in Bolton. AskCar page: https://askcar.co.uk/car/audi-a1-2018-d20dbeee38c8