2018 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI S Line S tronic FWD Euro 6 5dr 35 (147 bhp)
• Year: 2018
• Mileage: 34,610 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 147 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 147 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A3 S Line is advertised with 34,610 miles, approximately 30,400 below the typical mileage for its age. The AskCar estimate for this car is £14,993. It is priced at £14,990, which is £3 below that estimate. The AskCar estimate uses UK dealer asking prices, including 6,542 Audi A3 adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 38 days ago, the asking price has dropped by £551. We checked its advertised mileage against the government's MOT record, and they match. The seller is Lookers Vauxhall Ellesmere Port, based 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: £3 (under 1%) under the AskCar estimate of £14,993.

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 6,542 priced Audi A3 adverts across different ages and specifications, as of 2 November 2026.

A 2018 Audi A3 with the 1.5 petrol engine is typically advertised at £12,200: the median of the 142 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Audi A3 has been on sale for at least 38 days.

Price history

AskCar first saw this advert on 25 September 2026 at £15,541. Its asking price is now £14,990, £551 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 25 September 2026: £15,541
• 6 October 2026: £15,790
• 8 October 2026: £15,447
• 10 October 2026: £15,690
• 14 October 2026: £15,282
• 16 October 2026: £15,090
• 20 October 2026: £15,630
• 22 October 2026: £15,161
• 27 October 2026: £15,030
• 29 October 2026: £15,139
• 1 November 2026: £14,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 18 March 2027.

It has had 6 MOTs. The latest, on 11 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 31,867 miles, which matches the advertised 34,610 miles.

Advertised mileage is about 30,400 miles lower than the median mileage of a 2018 Audi A3 on AskCar.

Similar cars

21 other 2018 Audi A3 S Line 1.5 petrol automatic hatchbacks are for sale at UK dealers, from £9,695 to £15,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 34,079 miles. Price: £15,995, £1,005 more than this car. Dealer: Jones Motor Company in Chester. AskCar page: https://askcar.co.uk/car/audi-a3-2018-3c33716dc7d4
• 2018 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 32,600 miles. Price: £15,985, £995 more than this car. Dealer: Michael Birks Specialist Cars in Sheffield. AskCar page: https://askcar.co.uk/car/audi-a3-2018-36264a2ac2d0
• 2018 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 31,603 miles. Price: £15,500, £510 more than this car. Dealer: Stratstone Amersham Audi in Amersham. AskCar page: https://askcar.co.uk/car/audi-a3-2018-91b5052f6576