2018 Audi A3 1.6 TDI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.6 TDI S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (108 bhp)
• Year: 2018
• Mileage: 107,788 miles
• Fuel: Diesel
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.6 litres, 108 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Red
• CO2: 107 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 107,788 miles, this 2018 Audi A3 S Line has covered about 41,600 more miles than other 2018 Audi A3 cars. The dealer is asking £9,995, which is £560 above the AskCar estimate of £9,435. To work out the AskCar estimate, we analyse UK dealer adverts for 6,705 Audi A3 cars across different ages and specifications. We have tracked this advert for 1 day. Its advertised mileage matches the government's MOT record. It is advertised by Just Audi VW in Lincoln. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Price

Fair price: £560 (5%) over the AskCar estimate of £9,435.

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 6,705 priced Audi A3 adverts across different ages and specifications, as of 12 November 2026.

A 2018 Audi A3 with the 1.6 diesel engine is typically advertised at £10,400: the median of the 39 for sale on AskCar, as of 12 November 2026.

Time on sale

AskCar first saw this 2018 Audi A3 advertised 1 day ago. About half of 2018 Audi A3 cars are gone from sale within a month of being advertised: 274 of the 542 first advertised between 12 July 2026 and 9 October 2026.

Price history

AskCar first saw this advert on 11 November 2026 at £9,995. 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 12 November 2026: valid until 1 December 2026.

It failed its MOT on 24 November 2025 (nearside rear tyre tread pattern not visible over the whole tread area when minimum depth required is 1.0mm; offside rear tyre tread pattern not visible over the whole tread area when minimum depth required is 1.0mm) and passed later the same day.

Advisories at the latest test: nearside rear child seat fitted not allowing full inspection of adult belt.

Mileage at that test: 100,701 miles, which matches the advertised 107,788 miles.

Advertised mileage is about 41,600 miles higher than the median mileage of a 2018 Audi A3 on AskCar.

Similar cars

4 other 2018 Audi A3 S Line 1.6 diesel automatic hatchbacks are for sale at UK dealers, from £8,999 to £13,795, as of 12 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A3 S Line, 1.6 diesel hatchback, grey. Mileage: 114,000 miles. Price: £8,999, £996 less than this car. Dealer: Basford Motors in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/audi-a3-2018-23c0d9b34350
• 2018 Audi A3 S Line, 1.6 diesel hatchback, grey. Mileage: 67,916 miles. Price: £11,990, £1,995 more than this car. Dealer: LVMC in High Ongar. AskCar page: https://askcar.co.uk/car/audi-a3-2018-44badbbac262
• 2018 Audi A3 S Line, 1.6 diesel hatchback, red. Mileage: 65,859 miles. Price: £12,490, £2,495 more than this car. Dealer: Prestige Auto in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a3-2018-f0586d1419fe