2018 Audi A3 1.5 TFSI CoD S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI CoD S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
• Year: 2018
• Mileage: 50,758 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 114 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A3 S Line is advertised with 50,758 miles, approximately 14,200 below the typical mileage for its age. Priced at £14,170, it is advertised £197 below the AskCar estimate of £14,367. 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 2 days ago. Its advertised mileage matches the government's MOT record. The seller is Bluauto, based in Ringles Cross. 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: £197 (1%) under the AskCar estimate of £14,367.

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 2 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 31 October 2026 at £14,170. 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 27 August 2027.

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

There were no advisories at the latest test.

Mileage at that test: 48,884 miles, which matches the advertised 50,758 miles.

Advertised mileage is about 14,200 miles lower 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: 51,000 miles. Price: £14,191, the same price as this car. Dealer: Lookers Audi Newcastle in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/audi-a3-2018-95a6abb17d20
• 2018 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 51,536 miles. Price: £13,800, £370 less than this car. Dealer: Evans Halshaw Vauxhall Cardiff in Cardiff. AskCar page: https://askcar.co.uk/car/audi-a3-2018-b646b3313680
• 2018 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 47,320 miles. Price: £13,900, £270 less than this car. Dealer: Sytner Select Cardiff in Cardiff. AskCar page: https://askcar.co.uk/car/audi-a3-2018-ce8e5ed28cb7

• The nearest: 2018 Audi A3 S Line, 1.5 petrol hatchback, black, 28 miles from this car. Mileage: 80,080 miles. Price: £11,200, £2,970 less than this car. Dealer: Surrey Specialist Cars in Guildford. AskCar page: https://askcar.co.uk/car/audi-a3-2018-63a80f0200bd