2014 Mazda 6 2.2L Diesel · LN14 RYT

The 2014 Mazda 6 presents a mixed maintenance picture. The most recent MOT, conducted on 30 August 2025 at 135,899 miles, passed but carried three separate advisories concerning corrosion. The sub-frame and all four suspension arms were flagged as corroded, though not seriously weakened, alongside general surface corrosion under the body. This is a notable shift from the clean bill of health recorded in September 2020 at 109,913 miles. The trend is not one of catastrophic failure, but rather a gradual decline in structural presentation that warrants close physical inspection, particularly given the vehicle's age. Mileage accumulation sits at roughly 11,325 miles per year, which is typical for a vehicle of this vintage. The record shows a steady climb from 109,913 miles in September 2020 to 135,899 miles by August 2025, indicating consistent use rather than long periods of dormancy. There are no alarming gaps in the test history, with annual or near-annual tests recorded throughout the last six years. The 2024 test at 132,227 miles flagged an offside rear inner tyre worn close to legal limits, suggesting basic consumable upkeep may have been slightly neglected between services. The recurring theme across the record is rear brake wear and emerging structural corrosion. In September 2021 at 116,666 miles, the tester noted rear brake pads wearing thin on both sides alongside worn rear brake discs. A prospective buyer should verify whether these components have been replaced since, as the vehicle has covered nearly 20,000 miles since that advisory. The 2025 corrosion findings are the most critical area for inspection. While the tester deemed the sub-frame and suspension arms not seriously weakened, corrosion in these load-bearing areas can accelerate rapidly. A buyer should have the undercarriage inspected on a ramp, paying close attention to the sub-frame mounting points, rear suspension arm bushes, and inner wing arches. Surface underbody corrosion, if left untreated, can compromise structural integrity over time, particularly through subsequent winters.