2012 Mercedes-Benz E 3.0L Diesel · BF12 KJO

A consistent sequence of structural and hydraulic failures marks the MOT history of this Mercedes-Benz, culminating in a clean pass on 27 October 2025 that suggests recent remedial work addressed previous decay. Prior test sessions, however, reveal a pattern of significant component degradation, including major failures for fractured coil springs, extensively worn brake discs, and widespread corrosion across both front and front-to-rear brake lines in late 2023 and late 2024. While the most recent test shows zero recorded defects, the historical ledger requires a close inspection of the chassis and running gear to verify the longevity of these past repairs. Accumulating 134,438 miles over its fourteen-year lifespan places this vehicle at an average rate of approximately 9,600 miles per year, representing typical annual usage without extended gaps between inspections. Testing frequency has been largely consistent, though multiple closely spaced retests in 2023 and 2024 highlight periods where the vehicle failed initial examinations due to heavy wear on safety-critical components before securing passes. This continuous operational mileage means mechanical assemblies have experienced standard UK road conditions and weather cycles, leading to the metal fatigue and brake line oxidation noted in the official record. During your physical examination and test drive, pay particular attention to the front suspension and steering systems, keeping in mind the history of worn lower control arm bushes and slight wheel bearing play. Listen carefully for any knocking, clunking, or excessive vibration from the front corners when driving over uneven road surfaces or speed humps, which would indicate lingering movement in the suspension linkages. Additionally, inspect the condition of the rigid brake lines beneath the vehicle to confirm that all severely corroded sections flagged during previous test failures were fully replaced rather than patched, and test the brake pedal for a firm, responsive feel without excessive travel or judder. Finally, verify the condition of the exhaust system, referencing the 2024 advisory regarding an insecure rear heatshield, and check that all underbody shields are properly secured and free of rattles. Inspect the wheel arches and subframe mounting points for any signs of structural surface rust, and ensure the wheels track straight without pulling to either side under braking or acceleration. Confirming these specific areas are free from recurring wear will provide a clearer picture of the car's current mechanical resilience.