2013 Mercedes-Benz E 2.1L Diesel · NS11 AWS

The most recent MOT on 2025-08-05 recorded a pass, but the vehicle had previously failed on 2025-07-25 due to severe corrosion on both front and rear brake pipes, along with a damaged rear tyre and a seriously weakened sub-frame. The failure highlights critical safety risks, particularly with braking components and structural integrity. Recurring issues involve corrosion on brake pipes, consistently flagged since 2024. These were described as "corroded, covered in grease or other material" or "excessively corroded," suggesting poor maintenance or exposure to harsh conditions. The 2025-07-25 failure also noted a sub-frame corroded and weakened, a structural defect that could compromise safety and require expensive repairs. The trend indicates persistent corrosion problems, with no clear improvement. While the 2025-08-05 MOT passed, the proximity of the failure and subsequent pass suggests potential temporary fixes, such as under-tray installations, which may not address underlying rust. The vehicle’s high mileage (192,896 miles over 13 years) implies significant wear on components like brakes, suspension, and underbody parts. However, the exact cause of corrosion—whether environmental, maintenance-related, or indicative of deeper structural issues—remains unclear. The mileage of 14,838 miles per year is high for a 13-year-old vehicle, which could mean frequent use or exposure to corrosive elements like road salt.