2015 Mercedes-Benz E 2.1L Diesel · SC15 VVB

The latest MOT test on 2026-06-13 resulted in a pass, though it revealed two critical defects: a severely deteriorated offside front anti-roll bar ball joint dust cover, which compromises structural integrity and could lead to premature suspension failure if left unaddressed, and an advisory indicating the rear parking brake efficiency is only just meeting the minimum standard, suggesting the system requires immediate attention to prevent a potential failure. While the previous five MOTs have been clean, the recurring advisories on brake pad wear, disc condition, and tyre degradation—particularly in the rear—demonstrate a pattern of wear that has persisted over several years. The most notable failure in 2021 highlighted a major issue with the parking brake efficiency, reinforcing the need for vigilance in this area. Collectively, these findings suggest a maintenance trend that has remained stable in terms of passing MOTs but requires proactive intervention to mitigate long-term risks to roadworthiness and safety. The vehicle’s recorded mileage of 84,239 miles at 11 years old represents an annual usage rate of approximately 7,658 miles, which is within the expected range for a car of this age and class. This rate of accumulation is neither unusually high nor low, though it does imply consistent, moderate use rather than light or heavy duty. However, the presence of significant gaps between MOT tests—particularly the two-year interval between 2021 and 2023—could indicate periods of prolonged inactivity, which may have exacerbated wear in certain systems, such as the brakes and tyres. Standing vehicles are particularly vulnerable to issues like brake disc corrosion, caliper binding, and fluid degradation in the hydraulic system, so any extended periods without use should be factored into the inspection process. As a prospective buyer, the most critical areas to inspect are the braking system, given the recurring advisories and the risk of binding service brakes or a failing parking brake. Check for uneven brake pad wear, particularly on the rear, where the advisories suggest thinning pads and potential binding. Listen for a grinding noise when applying the brakes, which could indicate metal-to-metal contact between pads and discs, and inspect the rear brake discs for pitting, scoring, or corrosion, especially if the vehicle has been stationary for extended periods. The offside rear tyre wear close to the legal limit also warrants attention; uneven edge wear may signal misalignment, suspension issues, or incorrect tyre pressure. Additionally, verify the condition of the anti-roll bar ball joint dust cover, as its deterioration could lead to excessive suspension movement or noise, particularly on rough roads. Beyond the immediate concerns, conduct a thorough physical inspection of the vehicle’s structural and fluid components. Given the age and mileage, check the tyres for sidewall perishing or cracks, which can compromise their integrity under stress. Inspect the battery for signs of corrosion around terminals and test its charge capacity, as older vehicles are more susceptible to battery failure. The suspension should be examined for signs of worn bushes, coil spring damage, or excessive play in the steering or suspension linkages. Fluid levels and condition should be checked, particularly the brake fluid, which can degrade over time even without use, and the engine oil, which may require a full service if the vehicle has been stationary for a prolonged period. Finally, verify that the service book contains stamps for routine maintenance such as timing belt replacement, if applicable, and ensure all scheduled services have been completed. If the vehicle has been used sparingly, calendar-based checks for fluid degradation and standing corrosion are particularly important.