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: 65,827 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 114 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A3 S Line is advertised with 65,827 miles on the clock. Priced at £12,550, it is advertised £565 below the AskCar estimate of £13,115. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 50 days ago. Its advertised mileage matches the government's MOT record. It is advertised by GSC Essex in Ilford. 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: £565 (4%) under the AskCar estimate of £13,115.

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 50 days.

Price history

AskCar first saw this advert on 13 September 2026 at £12,550. 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 22 January 2027.

It failed its MOT on 23 January 2026 (nearside front tyre has a cut in excess of the requirements deep enough to reach the ply or cords; offside rear tyre tread depth below requirements of 1.6mm) and passed later the same day.

Advisories at the latest test: rear brake pad(s) wearing thin; rear brake disc worn, but not excessively; nearside rear tyre has a cut but not deep enough to reach the ply or cords; and 1 more.

Mileage at that test: 61,916 miles, which matches the advertised 65,827 miles.

Advertised mileage is about 800 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: 63,000 miles. Price: £12,650, £100 more than this car. Dealer: Windmill Autos in Sandy. AskCar page: https://askcar.co.uk/car/audi-a3-2018-589bc314d8ab
• 2018 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 61,500 miles. Price: £13,495, £945 more than this car. Dealer: Adam Medlicott Cars in Newton Abbot. AskCar page: https://askcar.co.uk/car/audi-a3-2018-9796a89427e9
• 2018 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 71,340 miles. Price: £12,199, £351 less than this car. Dealer: World Cars in Egham. AskCar page: https://askcar.co.uk/car/audi-a3-2018-685211d86742

• The nearest: 2018 Audi A3 S Line, 1.5 petrol hatchback, grey, 18 miles from this car. Mileage: 73,800 miles. Price: £12,795, £245 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