2018 Audi A3 1.5 TFSI CoD S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI CoD S Line Manual FWD Euro 6 (s/s) 4dr (148 bhp)
• Year: 2018
• Mileage: 45,245 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• 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 has covered 45,245 miles, around 19,500 fewer miles than is typical for its age. The AskCar estimate for this car is £13,200. It is priced at £12,850, which is £350 below that estimate. The AskCar estimate uses 6,729 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Evans Halshaw MG Banbury, based in Banbury. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £350 (2%) under the AskCar estimate of £13,200.

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 6,729 priced Audi A3 adverts across different ages and specifications, as of 6 November 2026.

A 2018 Audi A3 with the 1.5 petrol engine is typically advertised at £12,200: the median of the 150 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2018 Audi A3 advertised today. About half of 2018 Audi A3 cars are gone from sale within a month of being advertised: 248 of the 498 first advertised between 10 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 6 November 2026 at £12,850. 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 6 November 2026: valid until 18 June 2027.

It has had 7 MOTs. The latest, on 9 June 2026, passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge.

Mileage at that test: 42,688 miles, which matches the advertised 45,245 miles.

Advertised mileage is about 19,500 miles lower than the median mileage of a 2018 Audi A3 on AskCar.

Similar cars

7 other 2018 Audi A3 S Line 1.5 petrol manual saloons are for sale at UK dealers, from £10,495 to £12,950, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 75,000 miles. Price: £11,995, £855 less than this car. Dealer: Isaac Motors in Swansea. AskCar page: https://askcar.co.uk/car/audi-a3-2018-73ab2d0ba899
• 2018 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 81,300 miles. Price: £12,500, £350 less than this car. Dealer: J26 Car Sales in Ballymena. AskCar page: https://askcar.co.uk/car/audi-a3-2018-91fe92d6c573
• 2018 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 87,066 miles. Price: £11,250, £1,600 less than this car. Dealer: Landford Car Centre in Salisbury. AskCar page: https://askcar.co.uk/car/audi-a3-2018-d431fc6dcfb3