2011 Mazda 6 2.5L Petrol · KV11 KNP

The vehicle presents a worsening mechanical trend characterized by progressive corrosion and neglected braking system maintenance. While it passed its most recent MOT on 25 March 2026 at 158,627 miles, it failed just one day prior due to excessively fluctuating nearside front service brakes. This failure indicates a significant issue with the brake rotor or caliper that was addressed immediately before the retest. The persistent mention of widespread corrosion across all suspension components over several years suggests that the structural integrity of the underbody is subject to constant environmental degradation. At 158,627 miles over 15 years, the Mazda 6 averages approximately 10,575 miles per annum, which aligns with typical UK usage for a family car. The record shows consistent usage with intervals of roughly 6,000 to 7,500 miles recorded between annual tests from 2023 to 2026. This steady mileage suggests the car does not sit for long periods, but the high cumulative mileage has accelerated the wear on rubber components and metal hardware, particularly in the areas noted in the history. A buyer must conduct a thorough physical inspection of the chassis and underbody, specifically focusing on the recurring rust on the rear suspension arms and brake pipes. The tester repeatedly flagged corroded brake pipes covered in grease between 2023 and 2025, which often indicates an attempt to mask surface decay rather than replace the failing lines. The nearside front anti-roll bar linkage noted for play in 2024 and 2025 should also be checked for current mechanical play. Given the recent failure for fluctuating brakes, the entire front braking system should be inspected for uneven pad wear or seized pistons to ensure the recent repair was comprehensive.