2007 Mazda 3 1.6L Petrol · FV57 ACU

The most recent MOT test on the 2007 Mazda 3 was conducted on 2026-05-22, resulting in a passing grade despite the presence of an advisory regarding corrosion on both rear inner sills within 30cm of mounting points, which is not deemed to compromise overall vehicle security. While the vehicle has experienced multiple MOT failures and advisories over the past three years, the trend in recent tests shows a return to stability, with only the latest advisory—related to structural corrosion—remaining. The earlier failures in 2025 and 2024 were primarily focused on lighting and drive shaft boot issues, which were either rectified or classified as minor defects, indicating a pattern of addressing mechanical and electrical faults rather than persistent structural or mechanical failures. This suggests the vehicle has been maintained to a degree, though the recurring corrosion advisory and ball joint play advisories from 2023 highlight ongoing wear concerns that require attention to prevent escalation. The recorded mileage of 138,827 miles for a 19-year-old Mazda 3 reflects a moderate annual usage rate of approximately 7,307 miles per year, which is within the expected range for a vehicle of this age and class. Such mileage accumulation over a decade indicates consistent, albeit not extreme, driving conditions, though the gaps between MOT tests—particularly the three-year interval between 2023 and 2026—could imply periods of prolonged inactivity or underutilisation. Prolonged standing increases the risk of standing corrosion, particularly in the underbody and wheel arches, where moisture and road salt can accelerate rust formation. Additionally, the drive shaft boot deterioration in 2025 suggests the CV joint and associated seals may be nearing or exceeding their operational lifespan, warranting inspection for lubrication leaks or excessive play during acceleration or cornering. Brakes and suspension components, which are subject to wear from both mileage and standing, should also be monitored for signs of reduced performance or unusual noises. For a prospective buyer, the most critical areas to inspect are the structural integrity of the rear inner sills and underbody, as the recurring corrosion advisory indicates ongoing degradation that could compromise long-term reliability if left unaddressed. Look for signs of rust penetration into mounting points for rear doors, bumpers, or suspension components, as this can lead to binding or failure of critical systems. On a test drive, listen for clunks or rattles in the rear suspension during cornering or over bumps, which may indicate worn suspension ball joints or bushings, particularly around the anti-roll bar linkages. The CV joint boot failure from 2025 suggests checking for leaks or excessive grease around the drive shaft, and listen for a whining noise when accelerating, which could signal a failing CV joint. Additionally, verify that the offside rear lamps and stop lamps are functional, as these were major failures in previous tests, and ensure the near-side front headlamp lens is clear and properly aligned. Beyond the MOT history, conduct a thorough physical inspection of the vehicle’s exterior and undercarriage for signs of rust progression, especially in the wheel arches, rear sills, and beneath the chassis where moisture can pool. Check the tyre tread depth and sidewall condition, as tyres of this age may show signs of perishing or cracking, which can compromise safety. Inspect the 12V battery and associated wiring for corrosion or loose connections, as prolonged inactivity can lead to battery failure. Given the vehicle’s age and mileage, consider checking the fluid levels and condition of the engine oil, coolant, brake fluid, and transmission fluid, as these fluids degrade over time even without significant mileage. If the service history is sparse, verify the presence of any service stamps or records for oil changes, brake servicing, and suspension component replacements. Finally, arrange for a professional inspection of the suspension, drivetrain, and braking systems to confirm the absence of hidden wear or damage, particularly in areas highlighted by the MOT advisories.