2018 Audi A3 1.5 TFSI CoD S Line
Price: £11,499. Fair price: £784 (7%) over the AskCar estimate of £10,715, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,542 priced Audi A3 adverts on AskCar as of 2 November 2026.
AskCar lists 6,720 used Audi A3 from 2,302 UK dealerships, as of 2 November 2026.
Overview
- Make: Audi
- Model: A3
- Trim: S Line
- Version: 1.5 TFSI CoD 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
- Year: 2018
- Mileage: 89,162 miles
- Fuel: Petrol
- Body: Hatchback, 5 doors, 5 seats
- Engine: 1.5 litres, 148 bhp
- Gearbox: Automatic (S tronic)
- Drive: Front-wheel drive
- Colour: Black
- CO2: 117 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 Audi A3 S Line is advertised with 89,162 miles, approximately 24,200 above the typical mileage for its age. Priced at £11,499, it is advertised £784 above the AskCar estimate of £10,715. The AskCar estimate uses UK dealer asking prices, including 6,542 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale 59 days ago. The government's MOT record matches its advertised mileage. You can find this car at AL Prestige Cars in Southampton. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Fair price: £784 (7%) over the AskCar estimate of £10,715.
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 59 days.
Price history
AskCar first saw this advert on 4 September 2026 at £11,499. 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 8 January 2027.
It has had 8 MOTs. The latest, on 7 January 2026, passed.
Advisories at the latest test: rear registration plate deteriorated but not likely to be misread.
Mileage at that test: 80,066 miles, which matches the advertised 89,162 miles.
Advertised mileage is about 24,200 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: 85,945 miles. Price: £11,299, £200 less than this car. Dealer: Bripark Wigan in Wigan. AskCar page: https://askcar.co.uk/car/audi-a3-2018-2fe375c58f6b
- 2018 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 92,850 miles. Price: £10,990, £509 less than this car. Dealer: Motorlanka in Stourbridge. AskCar page: https://askcar.co.uk/car/audi-a3-2018-170489960c78
- 2018 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 80,080 miles. Price: £11,200, £299 less than this car. Dealer: Surrey Specialist Cars in Guildford. AskCar page: https://askcar.co.uk/car/audi-a3-2018-63a80f0200bd
Browse all Audi A3 cars for sale · 2018 Audi A3 price guide
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Photos
39 photos of this car are on its AskCar page.
As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.