2018 Mazda Mazda3 2.0 SKYACTIV-G Sport NAV

Overview

• Make: Mazda
• Model: Mazda3
• Trim: Sport NAV
• Version: 2.0 SKYACTIV-G Sport NAV Manual FWD Euro 6 (s/s) 5dr (119 bhp)
• Year: 2018
• Mileage: 25,286 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 119 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 119 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 25,286 miles, this 2018 Mazda Mazda3 Sport Nav has covered about 29,000 fewer miles than other 2018 Mazda Mazda3 cars. Priced at £12,990, it is advertised £475 above the AskCar estimate of £12,515. The AskCar estimate uses 1,226 UK dealer adverts for the Mazda Mazda3, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 37 days ago. The latest recorded MOT expiry date is 26 September 2026, which has passed. Confirm its status with the dealer. We checked its advertised mileage against the government's MOT record, and they match. The seller is SG Petch Darlington, based in Darlington. 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: £475 (3%) over the AskCar estimate of £12,515.

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 1,226 priced Mazda Mazda3 adverts across different ages and specifications, as of 2 November 2026.

A 2018 Mazda Mazda3 with the 2.0 petrol engine is typically advertised at £10,000: the median of the 71 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Mazda Mazda3 has been on sale for at least 37 days.

Price history

AskCar first saw this advert on 26 September 2026 at £12,990. 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 2 November 2026: the latest record we hold ran out on 26 September 2026; ask the dealer for the current MOT.

It failed its MOT on 11 September 2025 (nearside rear brake pad(s) less than 1.5 mm thick) and passed later the same day.

Advisories at the latest test: front brake pad(s) wearing thin; front brake disc worn, pitted or scored, but not seriously weakened; nearside front brake pipe corroded, covered in grease or other material; and 5 more.

Mileage at that test: 22,000 miles, which matches the advertised 25,286 miles.

Advertised mileage is about 29,000 miles lower than the median mileage of a 2018 Mazda Mazda3 on AskCar.

Similar cars

33 other 2018 Mazda Mazda3 Sport NAV 2.0 petrol manual hatchbacks are for sale at UK dealers, from £6,991 to £13,999, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, black. Mileage: 24,600 miles. Price: £11,795, £1,195 less than this car. Dealer: Finance Car Shop Ltd Leicester in Leicester. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-4b3d1532fa47
• 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, blue. Mileage: 24,490 miles. Price: £11,999, £991 less than this car. Dealer: Perrys Huddersfield Kia and MG in Huddersfield. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-2bdac96b45a2
• 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, silver. Mileage: 24,092 miles. Price: £12,990, the same price as this car. Dealer: Heartys of Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-6c0cbc9a05f4

• The nearest: 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, red, 1 miles from this car. Mileage: 41,548 miles. Price: £9,850, £3,140 less than this car. Dealer: Drive Motor Retail drivedirect Darlington Vauxhall in Darlington. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-0ca94a46902e