2012 Mercedes-Benz B-Class 1.8L Diesel · AJ06 ABJ

The most recent DVSA MOT test on 2026-08-03 resulted in a clean pass, though it revealed several persistent advisories and a minor defect that have appeared across multiple tests. The overall maintenance trend is stable, with no new major failures or recurring issues beyond the previously noted anti-roll bar linkage ball joint deterioration and brake disc wear. The vehicle’s history shows a pattern of minor failures being addressed, though the anti-roll bar linkage dust cover failures remain a recurring concern, indicating potential underlying wear in the ball joints themselves. The door handle and fog lamp issues, while not critical, suggest some functional wear in non-structural components, which are less likely to impact roadworthiness but may warrant attention for convenience and safety. The recorded mileage of 91,589 miles for a 2012 Mercedes-Benz B-Class reflects a reasonable annual usage rate of approximately 6,542 miles per year, which is typical for a vehicle of this age and class. This usage level suggests moderate to heavy daily use rather than light or infrequent operation, which would typically lead to more pronounced wear on consumables, suspension components, and drivetrain elements. The absence of significant mileage gaps indicates that the vehicle has been in regular service, which can accelerate wear on seals, gaskets, and moving parts, particularly in the suspension and braking systems. However, the consistent mileage does not necessarily imply rapid deterioration—many high-mileage vehicles maintain roadworthiness through proper maintenance and gradual component fatigue. Given the recurring advisories and minor defects, the prospective buyer should prioritise a thorough inspection of the anti-roll bar linkage system. The severely deteriorated dust covers on both front anti-roll bar ball joints suggest that the joints themselves may be worn or failing, leading to increased road noise, clunking or rattling when driving over bumps, and potential loss of suspension alignment. The brake discs, while not yet seriously weakened, are pitted and scored, which could lead to reduced braking performance, uneven wear on brake pads, and a grinding or squeaking noise when braking. Listen for a consistent brake pedal feel and check for any vibration or shudder during braking, which may indicate warped discs or internal brake component issues. Additionally, the nearside rear tyre wear close to the legal limit and the cut on the offside front tyre require immediate attention, as further deterioration could compromise traction and handling. For the door handle and fog lamp failures, these are non-critical but should be addressed for functionality. The temperamental door handle may cause inconvenience, especially in emergency situations, and could potentially lead to misaligned seals if repeatedly opened and closed improperly. The fog lamp failure, though not a safety hazard, should be rectified to ensure compliance with legal requirements. Beyond these issues, the buyer should also inspect the vehicle for signs of standing corrosion, particularly around the rear wheel arches, underbody, and door frames, as these areas are prone to rust in a vehicle of this age. Check the tyre sidewalls for signs of perishing or cracking, which can indicate age-related degradation and potential blowout risk. Given the vehicle’s mileage and age, it is advisable to verify the service history for fluid changes, particularly the brake fluid, which should be replaced every two years or 60,000 miles to prevent corrosion of brake components. Lastly, test the 12V battery and starter system by attempting to start the engine and checking for any electrical whining or hesitation, as a failing battery or alternator can lead to poor performance and potential electrical gremlins.