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) 4dr (148 bhp)
• Year: 2018
• Mileage: 97,862 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 113 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 97,862 miles on the clock, this 2018 Audi A3 S Line has done roughly 32,900 more miles than a typical 2018 Audi A3. The AskCar estimate for this car is £10,584. It is priced at £10,350, which is £234 below that estimate. The AskCar estimate uses UK dealer asking prices, including 6,542 Audi A3 adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 33 days ago, the asking price has dropped by £850. The government's MOT record matches its advertised mileage. It is advertised by NSN Motors in Buntingford. 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: £234 (2%) under the AskCar estimate of £10,584.

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 33 days.

Price history

AskCar first saw this advert on 30 September 2026 at £11,200. Its asking price is now £10,350, £850 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 30 September 2026: £11,200
• 4 October 2026: £10,690
• 11 October 2026: £10,490
• 31 October 2026: £10,390
• 1 November 2026: £10,350

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 29 August 2027.

It has had 7 MOTs. The latest, on 21 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 96,386 miles, which matches the advertised 97,862 miles.

Advertised mileage is about 32,900 miles higher than the median mileage of a 2018 Audi A3 on AskCar.

Similar cars

5 other 2018 Audi A3 S Line 1.5 petrol automatic saloons are for sale at UK dealers, from £10,495 to £16,250, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 89,508 miles. Price: £10,495, £145 more than this car. Dealer: Kestrels Motor Company in Halstead. AskCar page: https://askcar.co.uk/car/audi-a3-2018-c98fde75305b
• 2018 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 75,750 miles. Price: £13,490, £3,140 more than this car. Dealer: Quattro Tech Cars in St Ives. AskCar page: https://askcar.co.uk/car/audi-a3-2018-eb1b0a39c735
• 2018 Audi A3 S Line, 1.5 petrol saloon, silver. Mileage: 68,739 miles. Price: £12,299, £1,949 more than this car. Dealer: Perfect Car Company in Shrewsbury. AskCar page: https://askcar.co.uk/car/audi-a3-2018-42a66fc60d6c