2018 Audi A3 1.0 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.0 TFSI 30 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (114 bhp)
• Year: 2018
• Mileage: 43,297 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.0 litres, 114 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 118 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A3 S Line is advertised with 43,297 miles, approximately 21,700 below the typical mileage for its age. Priced at £13,690, it is advertised £358 above the AskCar estimate of £13,332. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 34 days ago. Its asking price has since fallen by £309. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Stratstone Amersham Audi, based in Amersham. 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: £358 (2%) over the AskCar estimate of £13,332.

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 1.0 petrol engine is typically advertised at £11,000: the median of the 65 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Audi A3 has been on sale for at least 34 days.

Price history

AskCar first saw this advert on 29 September 2026 at £13,999. Its asking price is now £13,690, £309 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 29 September 2026: £13,999
• 15 October 2026: £13,899
• 27 October 2026: £13,690

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 28 September 2027.

It has had 7 MOTs. The latest, on 29 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 43,481 miles, which matches the advertised 43,297 miles.

Advertised mileage is about 21,700 miles lower than the median mileage of a 2018 Audi A3 on AskCar.

Similar cars

4 other 2018 Audi A3 S Line 1.0 petrol automatic hatchbacks are for sale at UK dealers, from £9,250 to £15,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A3 S Line, 1.0 petrol hatchback, blue. Mileage: 26,490 miles. Price: £15,499, £1,809 more than this car. Dealer: World Cars in Egham. AskCar page: https://askcar.co.uk/car/audi-a3-2018-e09db849336c
• 2018 Audi A3 S Line, 1.0 petrol hatchback, grey. Mileage: 14,000 miles. Price: £15,995, £2,305 more than this car. Dealer: Sheering Car Sales in Bishop's Stortford. AskCar page: https://askcar.co.uk/car/audi-a3-2018-5d9b8fea9802
• 2018 Audi A3 S Line, 1.0 petrol hatchback, grey. Mileage: 103,000 miles. Price: £9,250, £4,440 less than this car. Dealer: Breckland Vehicle Specialists in Brandon. AskCar page: https://askcar.co.uk/car/audi-a3-2018-7fe252d905ac