2016 Mercedes-Benz B-Class Electricity · DP16 FVL

The most recent MOT test on the 2016 Mercedes-Benz B-Class occurred on 2026-06-16, where the vehicle failed with multiple dangerous and minor defects, including nearside front tyre tread depth below the legal minimum of 1.6mm and exposed tyre cords, alongside advisories for rear tyre cracking or perishing. This marks a significant deterioration from the previous MOTs, which were clean or only recorded minor issues such as a defective wiper blade and anti-roll bar ball joint dust covers. The pattern suggests a lack of timely maintenance, particularly concerning the front tyres and suspension components, which are critical for road safety. The failure highlights a concerning trend where the vehicle’s mechanical integrity has been compromised, warranting immediate attention to prevent further escalation of defects. The recorded mileage of 58,862 miles for a vehicle aged approximately ten years represents a relatively low annual usage rate of around 5,886 miles per year, which is unusual for a car of this age. Such low mileage often indicates periods of prolonged inactivity, potentially leading to issues such as standing corrosion, fluid degradation, and wear from infrequent use. For example, standing for extended periods can cause brake discs to corrode or calipers to bind, while fluids like brake fluid and differential oil can degrade over time due to evaporation and oxidation, even without active use. Additionally, tyre wear patterns may not reflect typical driving habits, with potential for uneven wear or sidewall damage from infrequent or light use. The suspension and steering components, which were flagged in previous MOTs, may also be affected by lack of dynamic loading, leading to accelerated wear in bushings and ball joints. Prior to purchase, the prospective buyer should conduct a thorough inspection to address the immediate safety concerns identified in the latest MOT. Focus first on the front tyres, as the exposed cords and low tread depth indicate severe and dangerous wear, which must be replaced immediately to meet legal requirements and ensure grip. During a test drive, listen for uneven tyre noise or vibration, which could signal misalignment or uneven tread wear. Next, examine the suspension for signs of binding or excessive play in the anti-roll bar ball joints, which were major failures in the 2025 MOT. Clunks or rattling from the front suspension during cornering or over bumps are clear indicators of worn or damaged components, and these should be replaced to prevent further deterioration. Additionally, check for fluid leaks around the wheel arches, undercarriage, and around the front suspension mounts, as these could indicate failing seals or bushings contributing to the ball joint failures. For the broader mechanical health of the vehicle, given its age and the history of advisories related to tyre perishing and fluid-related issues, the buyer should also assess the tyre condition beyond the visible cracks or perishing. Inspect the sidewalls for signs of dry rot or cracking, which can compromise structural integrity and lead to sudden blowouts. The 12-volt battery should be tested for charge retention and overall health, as prolonged inactivity can cause corrosion in terminals or a weakened starter motor. During the inspection, check for standing corrosion on the brake system, particularly around the front calipers and discs, which may be rusted or seized due to lack of use. Finally, verify that the vehicle has been serviced according to the manufacturer’s schedule, particularly for fluid changes—such as brake fluid, differential oil, and coolant—since these degrade over time regardless of mileage. If service records are unavailable, consider having the fluids tested for contamination or degradation, as this can exacerbate wear and reduce performance.