2018 Audi A3 2.0 TDI S Line
Price: £13,599. Fair price: £996 (7%) over the AskCar estimate of £12,603, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,645 priced Audi A3 adverts on AskCar as of 5 November 2026.
AskCar lists 6,826 used Audi A3 from 2,317 UK dealerships, as of 5 November 2026.
Overview
- Make: Audi
- Model: A3
- Trim: S Line
- Version: 2.0 TDI 35 S Line Manual FWD Euro 6 (s/s) 4dr (148 bhp)
- Year: 2018
- Mileage: 58,785 miles
- Fuel: Diesel
- Body: Saloon, 4 doors, 5 seats
- Engine: 2.0 litres, 148 bhp
- Gearbox: Manual
- Drive: Front-wheel drive
- Colour: Grey
- CO2: 111 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 Audi A3 S Line is advertised with 58,785 miles, approximately 6,200 below the typical mileage for its age. The dealer is asking £13,599, which is £996 above the AskCar estimate of £12,603. To work out the AskCar estimate, we analyse UK dealer adverts for 6,645 Audi A3 cars across different ages and specifications. The asking price is now £100 lower than when we first recorded the advert 26 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Henson Car Store in Newcastle Upon Tyne. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £996 (7%) over the AskCar estimate of £12,603.
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 6,645 priced Audi A3 adverts across different ages and specifications, as of 5 November 2026.
A 2018 Audi A3 with the 2.0 diesel engine is typically advertised at £13,200: the median of the 64 for sale on AskCar, as of 5 November 2026.
Time on sale
This 2018 Audi A3 has been on sale for at least 26 days.
Price history
AskCar first saw this advert on 10 October 2026 at £13,699. Its asking price is now £13,599, £100 less. The latest price cut was seen on 23 October 2026.
Price changes recorded:
- 10 October 2026: £13,699
- 23 October 2026: £13,599
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 26 May 2027.
It has had 7 MOTs. The latest, on 27 May 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 56,981 miles, which matches the advertised 58,785 miles.
Advertised mileage is about 6,200 miles lower than the median mileage of a 2018 Audi A3 on AskCar.
Browse all Audi A3 cars for sale · 2018 Audi A3 price guide
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Photos
60 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.