2016 Mazda 6 2.2L Diesel · YG16 AAX

The Mazda 6’s roadworthiness record shows a concerning pattern of neglect in the past year, culminating in a recent failure on May 30, 2026, at 190,231 miles. The tester flagged an oil leak—classified as not excessive—and slight play in the offside track rod end ball joint, both of which had already appeared in the same test just hours earlier, suggesting either a clerical error or deliberate retesting after minor repairs. The headlamp aim issue, also caught in the same session, indicates basic alignment checks were overlooked. Prior to this, the vehicle had passed its last two MOTs in May 2025 and May 2024 with no defects, implying the current problems are either newly developed or long-standing issues that were previously ignored. The presence of advisories in earlier tests—such as the 2023 front brake discs—hints at a history of deferred maintenance, particularly in braking and steering components. The mileage accumulation is aggressive for a vehicle of this age, averaging around 19,000 miles per year, which is well above the national average and suggests either heavy use or prolonged periods of neglect between services. The gaps between tests are consistent, with roughly 14,000 miles covered annually since 2023, but the sudden appearance of defects in 2026—after two clean passes—raises questions about whether critical wear was masked or simply not checked. The 2023 MOT at 151,213 miles noted front brake disc wear, yet no follow-up advisory or defect was recorded in the subsequent tests, pointing to either ineffective repairs or a lack of attention to braking system integrity. For a prospective buyer, the suspension components—particularly the track rod end ball joint—demand immediate inspection, as even slight play can lead to uneven tyre wear and handling instability. The oil leak, though not excessive, should be traced to its source; persistent leaks risk engine damage over time. The 2023 brake disc advisories, combined with the recent failure to address headlamp alignment, suggest a vehicle that has been driven with deferred maintenance. A thorough pre-purchase check should include a brake system assessment, suspension bushings, and a fluid levels inspection, as well as verifying whether the oil leak has been professionally addressed since the failed MOT. The absence of structural defects in recent tests is positive, but the trend of recurring advisories and the sudden failure on high-mileage components warrant caution.