2017 Mazda 3 2.0L Petrol · SV67 YNN

This 2017 Mazda 3 currently holds a valid MOT following its May 2026 test at 25,222 miles, though the maintenance trend is worsening, with recurring and expanding brake system corrosion defects that have persisted across the last three annual test cycles. The most recent test flagged corroded brake pipes at the flex joint on all four wheels, a defect that first appeared limited to the rear brakes in 2025 and has now spread to the front units, with under-tray fitments obscuring full visual access to these components during standard inspection. The vehicle’s recorded mileage of 25,222 miles over nine years equates to an average of roughly 2,800 miles per year, well below the UK average for a vehicle of this age, a pattern that may reflect either light regular use or extended periods of standing still. Gaps between tests show variable annual usage: 4,078 miles were added between the January 2023 and February 2024 tests, while usage slowed to around 2,300 miles between the May 2025 and May 2026 tests. Extended standing periods are a known accelerant for corrosion of static components such as brake pipes and underbody fittings, which aligns directly with the recurring corrosion defects logged across the test history. A buyer should first have the under-tray fitments removed to carry out a full visual inspection of the entire brake pipe network, as the recorded corrosion at all four flex joints is a serious safety defect that can lead to brake fluid leaks and total brake failure if left unaddressed. The rear brake discs and pads also require immediate assessment for wear, as the rear discs were flagged as worn and pitted in both the January 2023 and May 2025 tests, and rear pads were recorded as wearing thin during the 2025 failed test, indicating these components have not been replaced despite repeated advisories. The 2025 failed test also recorded severe sidewall cracking and exposed ply on both rear tyres, while front tyres were noted as worn close to the legal limit with inner sidewall splits in the 2023 test, so the buyer must verify the age, tread depth, and sidewall condition of all four tyres, as the history suggests basic consumable upkeep has been inconsistent in recent years. The clean February 2024 test result indicates the vehicle was maintained to a reasonable standard briefly before lapses in upkeep led to the 2025 test failure and ongoing unresolved defects.