2018 Audi A3 1.5 S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI S Line S tronic FWD Euro 6 5dr (147 bhp)
• Year: 2018
• Mileage: 71,340 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 147 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 114 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A3 S Line has covered 71,340 miles, around 6,300 more miles than is typical for its age. Its asking price of £12,199 is £159 below the AskCar estimate of £12,358. The AskCar estimate uses UK dealer asking prices, including 6,542 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 83 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at World Cars in Egham. 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: £159 (1%) under the AskCar estimate of £12,358.

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 83 days.

Price history

AskCar first saw this advert on 11 August 2026 at £12,199. 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 21 July 2027.

It has had 8 MOTs. The latest, on 22 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 71,074 miles, which matches the advertised 71,340 miles.

Advertised mileage is about 6,300 miles higher 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, grey. Mileage: 73,800 miles. Price: £12,795, £596 more than this car. Dealer: Group 1 Automotive Stansted Audi in Bishop's Stortford. AskCar page: https://askcar.co.uk/car/audi-a3-2018-20d4f58e5211
• 2018 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 65,827 miles. Price: £12,550, £351 more than this car. Dealer: GSC Essex in Havering. AskCar page: https://askcar.co.uk/car/audi-a3-2018-74c3f242c330
• 2018 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 63,000 miles. Price: £12,650, £451 more than this car. Dealer: Windmill Autos in Sandy. AskCar page: https://askcar.co.uk/car/audi-a3-2018-589bc314d8ab

• The nearest: 2018 Audi A3 S Line, 1.5 petrol hatchback, blue, 17 miles from this car. Mileage: 31,603 miles. Price: £15,500, £3,301 more than this car. Dealer: Stratstone Amersham Audi in Amersham. AskCar page: https://askcar.co.uk/car/audi-a3-2018-91b5052f6576