2010 Mercedes-Benz ML 3.0L Diesel · LU57 PYN

The most recent MOT test on the 2010 Mercedes-Benz ML recorded a passing result on 2026-07-21, following a failed inspection just two weeks prior on 2026-07-09. While the vehicle has not been subject to a failure in the past year, the history reveals a pattern of recurring issues, particularly around tyre wear and the near-side front outer drive shaft joint boot, alongside a single major failure related to the engine’s malfunction indicator lamp (MIL) and a dangerous parking brake deficiency. The presence of multiple advisories—particularly the persistent tyre edge wear—suggests either aggressive driving habits, uneven load distribution, or a lack of recent tyre rotation, which could accelerate further deterioration if not addressed. The offside front side repeater failure from 2023 also indicates a potential electrical or wiring issue that may recur if not rectified, though this was not present in the latest test. The recorded mileage of 92,054 miles for a vehicle aged 16 years represents an annual usage rate of approximately 5,753 miles, which is unusually low for its age. Such low mileage often correlates with prolonged periods of inactivity, particularly if the vehicle has been stored for extended periods without maintenance, leading to potential issues such as standing corrosion, fluid degradation, and component stiffness. The absence of higher mileage accumulation suggests that the vehicle has not undergone significant wear-and-tear stress, but this could also mask underlying problems if the car has been left unused for years without proper care. For example, brake discs may corrode or bind due to prolonged idling, suspension components could stiffen or seize from lack of movement, and fluids may degrade over time without regular servicing. Given the recent MOT history and the vehicle’s age and mileage, the buyer should conduct a thorough pre-purchase inspection to address the known and potential issues. The near-side front outer drive shaft joint boot failure is critical, as a severely deteriorated boot can lead to oil leaks, increased bearing wear, and eventual joint failure, which may cause steering vibrations or noise during acceleration. On a test drive, listen for unusual whining or clunking noises from the front axle area, and check for oil leaks beneath the vehicle. The tyre edge wear advisories indicate that the tyres are nearing legal limits and may require immediate replacement to prevent hydroplaning or reduced traction, especially if the vehicle is driven on wet roads. Inspect the tyres for signs of uneven wear patterns, cracks, or separation, and ensure they meet the legal minimum tread depth of 1.6mm. The engine MIL failure from 2026-07-09 is particularly concerning, as it suggests a persistent issue that has not been resolved, potentially involving the fuel injection system, ignition coils, or sensors. This could lead to reduced engine performance, increased emissions, or even a complete failure if left unattended. The parking brake efficiency failing to meet the 50% requirement is a dangerous defect, as it may not hold the vehicle securely in traffic or on inclines, posing a significant safety risk. Test the parking brake by engaging it fully and ensuring the vehicle does not move when stationary on a slope or after driving uphill. If the brake pedal feels spongy or the vehicle moves unexpectedly, this indicates a failing hydraulic or mechanical system that requires immediate repair. For a vehicle of this age and mileage, the buyer should also verify the following critical checks: the condition of the suspension components, including coil springs, shock absorbers, and suspension bushes, which may have stiffened or failed due to disuse; the health of the 12V battery, as prolonged inactivity can cause corrosion or internal failure; and the calendar-based condition of fluids such as coolant, brake fluid, and transmission fluid, which should be replaced every 5 years or 60,000 miles, whichever comes first, to prevent corrosion and seal degradation. Inspect the exhaust system for leaks, rust, or structural integrity, as standing corrosion can compromise emissions control and safety. Finally, check for any signs of rust on the underbody, particularly around wheel arches and under the chassis, as this can lead to critical structural failures if left untreated. If the vehicle has been stored in a damp or unfurnished environment, additional checks for mould, water ingress, or electrical system degradation are warranted.