2018 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI S Line Manual FWD Euro 6 5dr (147 bhp)
• Year: 2018
• Mileage: 20,167 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 147 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Black
• CO2: 118 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A3 S Line has covered 20,167 miles, around 44,800 fewer miles than is typical for its age. The AskCar estimate for this car is £14,904. It is priced at £13,995, which is £909 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 £1,500. Our records show an MOT expiry date of 30 October 2025, which has passed. Ask the dealer for an update. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Adamsons Motors in Walmer. 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: £909 (6%) under the AskCar estimate of £14,904.

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 £15,495. Its asking price is now £13,995, £1,500 less. The latest price cut was seen on 16 October 2026.

Price changes recorded:

• 25 September 2026: £15,495
• 16 October 2026: £13,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 30 October 2025; ask the dealer for the current MOT.

It has had 4 MOTs. The latest, on 29 October 2024, passed.

There were no advisories at the latest test.

Mileage at that test: 16,770 miles, which matches the advertised 20,167 miles.

Advertised mileage is about 44,800 miles lower than the median mileage of a 2018 Audi A3 on AskCar.

Similar cars

26 other 2018 Audi A3 S Line 1.5 petrol manual hatchbacks are for sale at UK dealers, from £6,990 to £15,999, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 30,801 miles. Price: £14,999, £1,004 more than this car. Dealer: Wearside Autoparc in Sunderland. AskCar page: https://askcar.co.uk/car/audi-a3-2018-09d380cc7275
• 2018 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 37,359 miles. Price: £15,999, £2,004 more than this car. Dealer: Hawco Group in Aberdeen. AskCar page: https://askcar.co.uk/car/audi-a3-2018-88db5c91297d
• 2018 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 39,947 miles. Price: £13,699, £296 less than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/audi-a3-2018-009f205e60ad

• The nearest: 2018 Audi A3 S Line, 1.5 petrol hatchback, grey, 62 miles from this car. Mileage: 55,198 miles. Price: £12,509, £1,486 less than this car. Dealer: Hammond Cars Ipswich in Ipswich. AskCar page: https://askcar.co.uk/car/audi-a3-2018-0d4c513e07f4