2012 Mercedes-Benz E 3.0L Diesel · KP12 JGO

The vehicle holds a short-term pass from November 2025 at 95,612 miles, but the maintenance trend is clearly worsening. A month earlier, in October 2025, the tester failed the car for a corroded and seriously weakened rear sub-frame, which is a structural integrity concern, not a minor cosmetic issue. That defect was rectified for the re-test, yet the November pass still carried two advisories for worn rear tyres and a malfunctioning steering lock. The presence of a major structural failure followed by a tyre and steering advisory suggests the previous owner addressed the immediate MOT failure rather than undertaking comprehensive preventative maintenance. The mileage progression tells a story of very light recent use. Between August 2023 at 68,100 miles and October 2024 at 84,647 miles, the car covered roughly 16,500 miles in just over a year. Yet from October 2024 to November 2025, the odometer barely moved, adding only 10,965 miles across an entire twelve-month period, with the last 12 miles recorded in the final month before the most recent test. This plateau suggests the vehicle has been standing idle for extended periods. Prolonged sitting accelerates brake pipe corrosion, tyre flat-spotting, and suspension component deterioration, which aligns with the recent failures flagged on the record. A buyer should treat the October 2025 rear sub-frame corrosion failure as a red flag requiring physical verification. Even though it passed a re-test, serious weakening in the sub-frame can return or indicate broader underbody corrosion, particularly around suspension mounting points and brake lines. The October 2024 failure for excessively corroded rear brake pipes and a fractured nearside front coil spring further confirms this car has suffered from moisture ingress and neglected chassis upkeep. Inspect the full length of the brake pipe runs, especially at clips and unions, and check the condition of all coil springs and anti-roll bar links for cracking or play. Beyond the structural work, the recurring rear tyre wear and the current steering lock fault point to ongoing minor neglect. Uneven tyre wear can indicate misalignment or worn suspension bushes, while a malfunctioning steering lock may be an ignition barrel fault or a mechanical jam in the steering column. Both need hands-on diagnosis. Compression test the engine and inspect the exhaust system for leaks, given the age and the history of standing. This car is not a straightforward purchase. The recent structural failure and inconsistent maintenance pattern demand a thorough underbody inspection before any commitment.