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 35 (147 bhp)
• Year: 2018
• Mileage: 104,922 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 147 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 104,922 miles, this 2018 Audi A3 S Line has covered about 39,900 more miles than other 2018 Audi A3 cars. The dealer is asking £8,990, which is £15 below the AskCar estimate of £9,005. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. We first recorded this car for sale 5 days ago. Our records show an MOT expiry date of 11 November 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. The seller is Auto Zone Peterborough, based in Peterborough. 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: £15 (under 1%) under the AskCar estimate of £9,005.

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

AskCar first saw this 2018 Audi A3 advertised 5 days ago. About half of 2018 Audi A3 cars are gone from sale within a month of being advertised: 230 of the 468 first advertised between 10 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 28 October 2026 at £8,990. 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: the latest record we hold ran out on 11 November 2025; ask the dealer for the current MOT.

It failed its MOT on 6 November 2024 (offside front inner tyre has a bulge, caused by separation or partial failure of its structure) and passed 2 days later, on 8 November 2024.

Advisories at the latest test: under trays fitted obscuring some components.

Mileage at that test: 103,148 miles, which matches the advertised 104,922 miles.

Advertised mileage is about 39,900 miles higher 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: 102,002 miles. Price: £8,750, £240 less than this car. Dealer: Nawaie Motoring Ltd (West Midlands) in Oldbury. AskCar page: https://askcar.co.uk/car/audi-a3-2018-cf68d2f78db1
• 2018 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 99,596 miles. Price: £9,322, £332 more than this car. Dealer: Jwp Motors in Doncaster. AskCar page: https://askcar.co.uk/car/audi-a3-2018-a96cfee46950
• 2018 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 114,000 miles. Price: £7,995, £995 less than this car. Dealer: Drive Time Specialist Cars in West Bromwich. AskCar page: https://askcar.co.uk/car/audi-a3-2018-2022e73914b5

• The nearest: 2018 Audi A3 S Line, 1.5 petrol hatchback, grey, 5 miles from this car. Mileage: 83,600 miles. Price: £9,999, £1,009 more than this car. Dealer: Noya Motor Group in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a3-2018-e01ef67443d0