2018 Audi A3 TDI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: S Line Manual FWD Euro 6 5dr
• Year: 2018
• Mileage: 125,510 miles
• Fuel: Diesel
• Body: Hatchback, 5 doors, 5 seats
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 114 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A3 S Line has covered 125,510 miles, around 60,500 more miles than is typical for its age. The AskCar estimate for this car is £8,127. It is priced at £6,935, which is £1,192 below that estimate. The AskCar estimate draws on 6,542 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 158 days ago, and its asking price has since fallen by £695. The latest recorded MOT expiry date is 31 October 2026, which has passed. Confirm its status with the dealer. The government's MOT record matches its advertised mileage. You can find this car at Rallysport Automotive in Colchester. 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

Good value: £1,192 (14%) under the AskCar estimate of £8,127.

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.

Time on sale

This 2018 Audi A3 has been on sale for at least 158 days.

Price history

AskCar first saw this advert on 28 May 2026 at £7,630. Its asking price is now £6,935, £695 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 28 May 2026: £7,630
• 6 June 2026: £7,495
• 16 June 2026: £7,475
• 24 June 2026: £7,445
• 27 June 2026: £7,430
• 29 June 2026: £7,395
• 29 July 2026: £7,345
• 13 August 2026: £7,295
• 28 August 2026: £7,275
• 10 September 2026: £7,227
• 4 October 2026: £7,195
• 15 October 2026: £7,095
• 17 October 2026: £6,995
• 31 October 2026: £6,935

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 31 October 2026; ask the dealer for the current MOT.

It has had 7 MOTs. The latest, on 12 June 2026, failed.

It failed on: offside front tyre tread depth below requirements of 1.6mm; nearside rear tyre has ply or cords exposed; offside rear tyre has ply or cords exposed.

Mileage at that test: 125,526 miles, which matches the advertised 125,510 miles.

Advertised mileage is about 60,500 miles higher than the median mileage of a 2018 Audi A3 on AskCar.