2016 Mazda Cx-3 1.5L Diesel · WM16 MLF

The most recent MOT test on the 2016 Mazda CX-3 occurred in December 2025, resulting in a passing outcome with a single minor defect related to the near-side front windscreen, which did not impair visibility. However, the vehicle’s MOT history reveals a pattern of recurring issues, particularly concerning the offside front brakes, which failed in 2023 with both a dangerous failure for pad thickness below 1.5 mm and a major defect for excessive binding. This suggests a persistent problem with brake system integrity, likely linked to wear progression or potential caliper binding, which could compromise stopping performance if not addressed promptly. The earlier 2020 and 2021 tests included advisories about obstructed driver vision, indicating either improperly secured items or seating arrangements that may have been overlooked during routine checks, though these do not affect roadworthiness directly. The vehicle’s mileage of 93,428 miles at a 10-year-old age represents a moderate annual usage rate of approximately 9,343 miles per year, which is typical for its class and typical usage patterns. While this mileage is not exceptionally high, the significant gap between the 2023 failure and the 2025 passing suggests the vehicle may have been stationary for extended periods, potentially exacerbating issues like corrosion, fluid degradation, or caliper binding from prolonged idling. The offside front brake failure in particular could be influenced by standing corrosion on discs or seized calipers, which are more likely to develop when the vehicle is not driven regularly. Additionally, the headlamp aim issue from 2025 indicates a need for attention to optical alignment, which can degrade over time due to environmental exposure or minor impacts. As a prospective buyer, the most critical areas to inspect are the brake system, particularly the offside front components, given the 2023 failure history. On a test drive, listen for unusual grinding noises when applying the brakes, which could indicate worn pads or metal-to-metal contact. Check for uneven brake pad wear or excessive heat discoloration on the discs, which may suggest binding or uneven braking force. Inspect the offside front brake discs for signs of corrosion or pitting, and ensure there is no binding when the calipers are released. If the brakes feel spongy or require excessive pedal travel, this could signal fluid degradation or a failing master cylinder. Beyond brakes, verify that the suspension components, particularly the offside front suspension bushes and coil springs, are free of excessive play or clunking noises, as these can indicate wear or damage that may worsen with continued use. For the windscreen, the minor chips and damage noted in multiple MOTs should be addressed promptly to prevent further deterioration or potential impact hazards. The near-side front windscreen damage from 2025 and 2023 indicates a need for a professional assessment to determine if the cracks or chips have propagated. Additionally, check for any signs of tyre sidewall perishing or cracking, which can occur even at moderate mileage due to the vehicle’s age. Given the potential for prolonged standing, inspect the undercarriage for signs of rust, particularly around wheel arches, exhaust components, and the engine bay, as corrosion can compromise structural integrity. Finally, verify the condition of the 12V battery and associated electrical systems, as prolonged disuse can lead to sulfation or weak terminals. Ensure all fluids—brake fluid, coolant, and transmission fluid—are at the correct levels and free from contamination, as these degrade over time regardless of mileage. If the vehicle has a service history, confirm that the manufacturer-recommended fluid changes and component replacements have been documented, particularly for the brake system and suspension, to mitigate future wear risks.