2018 Audi A3 2.0 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 2.0 TFSI S Line S tronic 4WD Euro 6 (s/s) 5dr Sportback (187 bhp)
• Year: 2018
• Mileage: 33,589 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic (S tronic)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 134 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 33,589 miles, this 2018 Audi A3 S Line has covered about 31,400 fewer miles than other 2018 Audi A3 cars. The AskCar estimate for this car is £18,031, but it is priced at £10,395, a difference of £7,636. Ask the dealer to confirm the price and vehicle details. The AskCar estimate draws on 6,542 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 105 days ago, the asking price has dropped by £200. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Top Gear Harrow, based in Harrow. 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

Far below the going rate: £7,636 (42%) under the AskCar estimate of £18,031. Worth asking the dealer why.

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 2.0 petrol engine is typically advertised at £13,500: the median of the 68 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Audi A3 has been on sale for at least 105 days.

Price history

AskCar first saw this advert on 20 July 2026 at £10,595. Its asking price is now £10,395, £200 less. The latest price cut was seen on 14 August 2026.

Price changes recorded:

• 20 July 2026: £10,595
• 14 August 2026: £10,395

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 3 August 2027.

It has had 6 MOTs. The latest, on 4 August 2026, passed.

Advisories at the latest test: front tyre worn close to legal limit/worn on edge both; rear brake pad(s) wearing thin both sides.

Mileage at that test: 33,660 miles, which matches the advertised 33,589 miles.

Advertised mileage is about 31,400 miles lower than the median mileage of a 2018 Audi A3 on AskCar.

Similar cars

2 other 2018 Audi A3 S Line 2.0 petrol automatic hatchbacks are for sale at UK dealers, from £12,989 to £17,690, as of 2 November 2026.

The 2 closest to this car in mileage:

• 2018 Audi A3 S Line, 2.0 petrol hatchback, black. Mileage: 21,983 miles. Price: £17,690, £7,295 more than this car. Dealer: EMG Motor Group Boston Mazda in Boston. AskCar page: https://askcar.co.uk/car/audi-a3-2018-39cfd0f4e19d
• 2018 Audi A3 S Line, 2.0 petrol hatchback, blue. Mileage: 77,000 miles. Price: £12,989, £2,594 more than this car. Dealer: Emaari Automotive in Croydon. AskCar page: https://askcar.co.uk/car/audi-a3-2018-cf2b4fe72baf