2011 Mercedes-Benz ML 3.0L Diesel · LM61 AAE

The most recent MOT test conducted on 30 December 2025 resulted in a failure, highlighting several critical safety and mechanical issues. When evaluating the overall maintenance trend, the vehicle shows a concerning and rapid decline in condition. While the records from 2022 and 2023 were clean, the subsequent failures in 2024 and 2025 indicate that the vehicle is currently suffering from neglected maintenance, particularly regarding the braking system, engine management, and fluid containment. At 151,414 miles, the vehicle has covered an average of roughly 10,000 miles per year over its 15-year lifespan. This is considered typical usage for a vehicle of this class and age. While this avoids the potential issues associated with extreme long-distance motorway use or the perishing associated with very low mileage, it does mean that the vehicle has reached a mileage threshold where major wear-and-tear components such as suspension bushings, dampers, and engine seals are likely to require significant investment to maintain roadworthiness. The mechanical defects recorded in the latest test require immediate attention. The dangerous failure of the rear brake pads, combined with the advisory on the front pads, indicates a complete requirement for a full brake overhaul, including new pads and potentially new discs. On a test drive, you should listen for metallic grinding sounds and feel for any vibration or shuddering under braking. The reported excessive engine oil leak and the failure of the engine malfunction indicator lamp are particularly high-risk items. An inoperative MIL means the vehicle may be masking serious engine faults, and the oil leak could lead to catastrophic engine failure if it is due to a failed seal or gasket. Inspect the engine bay thoroughly for heavy oil seepage and check for any blue or grey smoke from the exhaust. Additionally, the major defect regarding the nearside front shock absorber indicates a serious fluid leak. This will compromise the vehicle's handling and stability. During the test drive, pay close attention to the suspension's response to uneven road surfaces; you may notice a bouncing sensation or a lack of damping on the nearside front. Furthermore, check the tyres for uneven wear patterns, as a leaking shock absorber often leads to premature and irregular tyre degradation. Given the recent history of lamp and lens failures, ensure all lighting elements are functional and that the lenses are clear and free from cracks to avoid further MOT failures.