2012 Mercedes-Benz B-Class 1.8L Diesel · LL62 WUX

The most recent DVSA MOT test, conducted on 2 September 2025, recorded a PASS with no defects or advisories, indicating that the vehicle met the statutory roadworthiness requirements at the time of inspection. The earlier test on the same date initially recorded a FAIL, but the subsequent pass on the same day confirms the defect leading to that failure was rectified without recorded details, which often points to a minor issue such as a bulb replacement or an emissions or brake reading that was subsequently corrected. Looking across the broader history, the vehicle has shown a stable maintenance pattern with passes in September 2024 and October 2023, and any failures encountered appear to have been addressed promptly. There is no evidence in the record of recurring or recurring defect categories, which suggests a generally well-maintained mechanical condition over the documented testing period. With approximately 63,900 miles recorded over 14 years, this B-Class has averaged only around 4,564 miles per year, which is considerably below the typical usage profile for a family-oriented Mercedes-Benz of this age. This low annual mileage suggests either sporadic use, a predominantly urban or short-journey role, or extended periods of standing between trips. While low mileage reduces wear on major drivetrain components, it introduces its own mechanical concerns, particularly regarding components that degrade through age rather than use, such as rubber seals, brake system corrosion, and 12V battery longevity. There are no notable mileage gaps or sudden accumulations indicated in the recorded history, which suggests consistent light usage rather than a pattern of long-term storage followed by heavy use. Given the clean MOT record and the age of the vehicle, a prospective buyer should focus on time-based deterioration rather than wear-based defects. Tyres warrant particular attention, as a 14-year-old vehicle may have tyres that suffer from sidewall perishing or cracking due to age-related rubber degradation, even if the tread depth remains legal. A close visual inspection of the sidewalls for hairline cracks and checking the DOT date code on the tyre sidewall to ensure the rubber is not excessively old is advisable. The brake discs and calipers should also be examined for surface corrosion, as prolonged standing can lead to pitting or binding calipers, which would manifest as uneven braking, brake shudder under load, or a pulling sensation during a test drive. The brake fluid should be checked for age, as moisture absorption over time reduces its boiling temperature and compromises braking efficiency, regardless of mileage. Further inspection should include the condition of the 12V battery, which is particularly vulnerable on low-mileage vehicles that do not receive regular full charging cycles from sustained driving, leading to potential starting issues or electrical faults. A battery health test or resting voltage check is prudent, and the charging system should be verified to ensure the alternator is functioning correctly. The cooling system, including the radiator, hoses, and expansion tank, should be inspected for any signs of leakage or degradation, and the antifreeze strength should be confirmed as adequate. Suspension components such as coil springs, anti-roll bar bushes, and drop links are also susceptible to age-related perishing, so any clonks, knocks, or uneven tyre wear during a test drive would warrant a closer examination. Finally, verifying the service book stamps and ensuring that the cambelt, where applicable, and the automatic transmission fluid have been changed at manufacturer-recommended intervals is essential, as these are critical time-based services that protect the long-term mechanical integrity of the vehicle.