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: 80,080 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

With 80,080 miles on the clock, this 2018 Audi A3 S Line has done roughly 15,100 more miles than a typical 2018 Audi A3. Priced at £11,200, it is advertised £411 below the AskCar estimate of £11,611. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. Since we first spotted the advert 158 days ago, the asking price has dropped by £800. Its advertised mileage matches the government's MOT record. It is advertised by Surrey Specialist Cars in Cranleigh. 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: £411 (3%) under the AskCar estimate of £11,611.

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 158 days.

Price history

AskCar first saw this advert on 28 May 2026 at £12,000. Its asking price is now £11,200, £800 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 29 May 2026: £12,000
• 9 June 2026: £11,940
• 16 June 2026: £11,890
• 26 June 2026: £11,790
• 8 July 2026: £11,740
• 16 July 2026: £11,660
• 26 July 2026: £11,620
• 28 August 2026: £11,600
• 16 September 2026: £11,500
• 3 October 2026: £11,300
• 29 October 2026: £11,200

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 May 2027.

It failed its MOT on 22 May 2026 (nearside front anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 80,070 miles, which matches the advertised 80,080 miles.

Advertised mileage is about 15,100 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, black. Mileage: 85,945 miles. Price: £11,299, £99 more than this car. Dealer: Bripark Wigan in Wigan. AskCar page: https://askcar.co.uk/car/audi-a3-2018-2fe375c58f6b
• 2018 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 73,800 miles. Price: £12,795, £1,595 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, black. Mileage: 71,340 miles. Price: £12,199, £999 more than this car. Dealer: World Cars in Egham. AskCar page: https://askcar.co.uk/car/audi-a3-2018-685211d86742