2015 Mercedes-Benz A-Class 1.5L Diesel · OO 702

The most recent MOT test on the 2015 Mercedes-Benz A-Class, conducted on 2026-07-28, resulted in a clean pass with no recorded defects, marking a positive continuation of the vehicle’s roadworthiness. Despite the presence of tyre-related advisories in previous MOTs—particularly from 2022 onwards—these have not re-emerged in the most recent assessment, suggesting a stable maintenance trend. The absence of further failures or advisories since 2024 indicates that the tyre conditions, while historically concerning, have either stabilised or been addressed proactively. However, the persistence of these advisories over multiple years highlights a pattern worth addressing, as tyre perishing and minor damage can escalate into more severe issues if ignored, particularly given the vehicle’s age and the potential for deeper sidewall wear or internal structural compromise. The recorded mileage of 55,242 miles for a vehicle aged approximately 11 years represents an annual usage rate of around 5,022 miles, which is notably lower than the industry average for vehicles of this age and model. Such low mileage can stem from factors like infrequent use, long periods of stationary storage, or a more leisurely driving profile. While lower mileage typically correlates with reduced wear on consumables such as tyres, brakes, and fluids, it also raises concerns about potential standing-related issues. Extended periods of inactivity can accelerate corrosion in brake systems, particularly on the rear discs and calipers, leading to binding or reduced braking efficiency. Additionally, the vehicle’s suspension components, including bushes and springs, may show signs of stiffness or premature wear due to lack of dynamic loading, which could manifest as unusual clunking noises or reduced ride comfort. Given the historical MOT advisories on the tyres, the buyer should prioritise a thorough inspection of all four tyres, focusing on the sidewall condition for signs of perishing, cracking, or bulging, which could indicate underlying structural weakness or internal damage. On a test drive, listen for any irregular tyre noise, such as a grinding or scraping sound, which may suggest uneven wear or a potential blowout risk. The front windscreen wiper blade, which failed minor inspection in previous MOTs, should be replaced immediately to ensure visibility remains compliant and safe. For the brake system, given the vehicle’s age and potential standing periods, examine the rear brake discs for signs of corrosion, warping, or binding, and check that the calipers operate smoothly without excessive drag. Inspect the brake fluid reservoir for contamination or low levels, as standing fluid can degrade over time, compromising braking performance. Beyond the immediate concerns, the buyer should also assess the vehicle’s battery health, particularly if it has been stationary for prolonged periods, as a dormant 12V battery can suffer from sulphation or terminal corrosion. Check the battery terminals for cleanliness and tightness, and test the starting system for responsiveness. Given the vehicle’s age, a comprehensive fluid service is advisable, including the engine oil, coolant, brake fluid, and differential/transmission fluids, as these can degrade over time even with low mileage. Verify that the service book or maintenance records are up to date, especially for items like the timing belt (if applicable), suspension components, and exhaust emissions system, which may require calendar-based servicing rather than mileage-dependent intervals. Finally, a visual inspection of the undercarriage for rust, particularly around wheel arches and beneath the chassis, is essential, as prolonged inactivity can accelerate corrosion in these areas.