2010 Peugeot 407 2.2L Diesel · OV59 OPM

The defining mechanical narrative for this 2010 Peugeot 407 is one of chronic wear and progressive deterioration in its steering, suspension, and drivetrain seals, with the 2025-03-03 test resulting in a failure driven by multiple Major defects on the front suspension and drive shafts, followed by a subsequent pass on 2026-03-19 that still flagged a severely deteriorated offside front CV boot. The overarching trajectory shows a vehicle steadily degrading rather than recovering. The 2024-03-19 pass and prior failure on the same date carried advisories for systemic corrosion across all steering, suspension, and braking components, a recurring minor oil leak from the engine or sump area, and front tyres worn close to the legal limit on both sides. By early 2025, the offside front inner and outer CV boots had both split wide enough to allow dirt contamination, and the nearside front suspension arm pin or bush had worn to the point of excessive movement, registering as a Major defect. The 2025 pass later that month noted a defective gearbox mounting alongside the continuing oil leak, and the most recent pass in March 2026 still recorded the offside front CV boot as severely deteriorated. The pattern indicates a chassis and drivetrain reaching an age where rubber, bushings, and boots are failing in sequence rather than as isolated incidents. At 137,884 recorded miles against approximately 16 years of service, the vehicle accumulates roughly 8,618 miles annually, which is broadly typical for its age and suggests a working or commuter role rather than long-term storage. There are no multi-year gaps in the testing history that would imply extended standing, and no rapid mileage escalations between consecutive tests that would suggest inconsistent odometer readings or unusual use patterns. Mechanically, this steady accumulation means the engine, gearbox, clutch, and supporting drivetrain have absorbed a full working life of loading, while the suspension, braking, and underbody components have endured the corresponding wear and corrosion cycles. The mileage itself is not the headline concern; rather, the age combined with continuous exposure to road salts and loading has produced the underbody corrosion advisory and the succession of bush and boot failures recorded over the past two years. For a prospective buyer, the priority items to physically inspect are the front suspension arms, bushes, and anti-roll bar linkages, as the nearside front arm pin or bush progressed from an advisory level of wear in March 2025 to an excessively worn Major on the same inspection, meaning the replacement work noted between the failure and the later pass that month must be verified as having been carried out. On a test drive, listen for clonks or knocking from the front end over speed humps and uneven surfaces, particularly from the nearside, and feel for vagueness or delay in steering response. The offside front drive shaft CV joints warrant a close visual inspection underneath for fresh grease contamination around the inner and outer boots, as the 2026 advisory confirms the boot has again deteriorated severely, and any clunking or vibration on full-throttle acceleration or tight turns would indicate joint failure. Inspect the gearbox mounting for excessive movement by rocking the drivetrain with the handbrake engaged, and check the underside for fresh oil residue tracking down from the sump, gearbox, or cam covers, given the recurring leak advisory. The underbody corrosion advisory covering all steering, braking, and suspension components should prompt a thorough inspection on a ramp or over a pit, focusing on the front subframe, brake pipes, fuel lines, and mounting points for the wishbones and anti-roll bar. Surface corrosion is expected on a vehicle of this age, but any flaking that lifts away under light probing, or perforation of the brake pipes along their runs, would represent a structural or safety concern. The headlamp lenses, noted as having a product applied, should be checked for clarity, as this is often a short-term cosmetic fix that degrades. Finally, the front tyres should be measured for remaining tread depth and inspected for uneven shoulder wear, which on a 407 commonly points to worn suspension bushes, tracking misalignment, or worn top mounts, all of which align with the recorded advisories.