2002 Mercedes-Benz ML 2.7L Diesel · FA52 UDZ

This Mercedes-Benz ML has exhibited a concerning pattern of repeated MOT failures over the past two years, with the most recent test on 2024-11-12 resulting in a fail despite no defects being recorded. The absence of specific advisories or defects in any of the four tests—including the latest—suggests either a systematic issue with the testing process, a vehicle that has been deliberately driven through tests without necessary repairs, or a history of non-compliance with minor but critical standards. The lack of advisories in any of the passes or fails further complicates assessment, as this typically indicates either a well-maintained vehicle or one where minor issues were overlooked. The trend is neither improving nor worsening in a clear mechanical sense, but rather raises questions about the vehicle’s true condition and whether it has been subjected to selective maintenance to pass tests. The recorded mileage of 88,552 miles over approximately 24 years—roughly 3,690 miles annually—is unusually low for a vehicle of this age, suggesting it has spent significant periods either in storage or under light use. The most recent mileage jump appears between the 2022 pass (52,000 miles) and the 2023 failures (53,000–54,000 miles), indicating minimal activity before the failures began. This pattern could imply deferred maintenance during periods of inactivity, as older vehicles left unused are prone to accelerated wear in components like suspension bushes, coil springs, and brake systems due to lack of motion and lubrication. The sparse MOT history before 2022 makes it difficult to establish a longer-term maintenance trend, but the low mileage does not necessarily correlate with better condition—it may instead reflect neglect during periods of disuse. Given the repeated MOT failures without recorded defects, a buyer should prioritise a thorough inspection of structural integrity, particularly the chassis and subframe for corrosion, as this is often a silent issue in older Mercedes models. The suspension should be closely examined for worn or dried-out bushes, degraded coil springs, and binding calipers, as these are common failure points in vehicles with irregular usage. Brake discs and pads should be checked for uneven wear or glazing, which can occur if the vehicle was left stationary for extended periods. Additionally, the exhaust system should be inspected for leaks or rust-induced failures, as this is another frequent cause of MOT fails in older models. The absence of advisories in the MOT history makes it impossible to confirm whether these areas have been addressed, so independent verification is essential.