2010 Mercedes-Benz ML 3.5L Diesel · 1230 JW

The most recent MOT inspection on 11 August 2026 resulted in a pass, but the vehicle shows a concerning trend of recurring advisories that suggest a gradual decline in preventative maintenance. While the vehicle has avoided major failures in the last two years, the persistent presence of brake pipe corrosion and the recent emergence of shock absorber misting indicate that several mechanical components are reaching the end of their serviceable life. The maintenance history is not improving; rather, it shows a pattern of long-term issues, specifically regarding the braking system, which have been noted consistently since at least 2021. With a recorded mileage of 119,236 over approximately 16 years, this Mercedes-Benz ML has averaged roughly 7,452 miles per year. This level of usage is considered low to moderate for a vehicle of this age and type, which often implies it has not been subjected to heavy motorway commuting. While lower annual mileage can reduce engine wear, it can also lead to other issues such as component stagnation or the degradation of rubber and fluid components due to lack of regular thermal cycling. The mileage is consistent with a vehicle that may have spent significant periods stationary or used primarily for short local trips, which aligns with the observed corrosion and tyre issues. A primary area of concern for a prospective buyer is the ongoing advisory regarding the corrosion of both the nearside and offside rear brake pipes. The fact that these have been flagged for several consecutive years, often noted as being covered in grease or other material, suggests that the extent of the corrosion may be obscured, making it difficult for the tester to assess the true structural integrity of the lines. You must inspect these pipes closely for any signs of bubbling or flaking. On a test drive, pay close attention to the brake pedal feel; any sponginess or a change in pressure could indicate that the corrosion is progressing toward a fluid leak or a loss of hydraulic integrity. Furthermore, the recent advisory for light oil misting on the nearside front shock absorber indicates the beginning of a seal failure. You should listen for any knocking or clunking sounds when driving over uneven surfaces or speed bumps, as this would signal that the damper is losing its ability to control suspension movement. Given the vehicle's age and usage profile, additional physical inspections are essential. The history of dangerous failures regarding tyre tread depth and exposed cords suggests a tendency toward neglected tyre maintenance. Beyond checking the current tread depth, you must inspect the sidewalls for perishing, cracking, or bulging, as older tyres can suffer from rubber degradation even if they have sufficient tread. Check the brake discs for heavy corrosion or uneven wear, which could cause a shudder through the pedal during braking. Finally, because the vehicle has relatively low annual mileage, verify the service history to ensure that fluids such as engine oil, coolant, and brake fluid have been changed based on time intervals rather than just mileage, as these fluids degrade chemically over time regardless of distance travelled.