2016 Peugeot 508 2.0L Diesel · DA66 VBV

A pattern of mid-life mechanical wear is emerging on this 2016 Peugeot 508, with the most recent test on 5 January 2026 passing but flagging tyres worn close to the legal limit on all four corners alongside a severely deteriorated offside front outer drive shaft CV boot recorded as a minor defect. This follows a clean pass in November 2024 and two defect-free outcomes in late 2021 and late 2022, suggesting that while the underlying structure and core safety systems have remained compliant, the consumable and rolling-gear components are now reaching the end of their service life at this mileage. The two recorded failures are both relatively minor in nature: an inoperative registration plate lamp noted at the November 2020 retest, and a non-functioning nearside rear stop lamp accompanied by advisories for rear brake disc wear and a thinning offside rear brake pad at the October 2023 test. The braking advisories in particular are consistent with a vehicle now covering sustained motorway mileage and warrant close physical inspection before purchase. With 136,812 miles recorded over ten years, this 508 is accumulating roughly 13,681 miles annually, which sits well above the typical average and indicates a working use profile dominated by longer journeys rather than short urban hops. There are no extended gaps in the testing history, with annual MOTs recorded consistently from 2020 through to early 2026, and the mileage progression between tests appears steady rather than erratic. Mechanically, this level of annual usage means the engine, clutch, turbo system (where fitted), drivetrain mounts, suspension components and braking system have all been under continuous load, accelerating wear on items such as bushes, anti-roll bar links, wheel bearings and engine mounts that would otherwise last considerably longer on a lower-mileage vehicle. The earlier clean pass results suggest the major structural and emissions-related systems remain serviceable, but the recent tyre and CV boot findings point to the stage where general refurbishment of consumable components becomes likely. A prospective buyer should treat the January 2026 tyre advisory as an immediate item requiring attention, as tyres worn down to the legal limit on all four wheels simultaneously can also indicate incorrect wheel alignment, worn suspension geometry or prolonged neglect of rotation, so the geometry and condition of the front suspension arms, wishbones and anti-roll bar linkages should be inspected closely for perished bushes or play. The deteriorated offside front CV boot is a priority repair, as a split boot will rapidly allow grease loss and ingress of dirt, leading to CV joint failure typically heralded on a test drive by a rhythmic clicking under sharp acceleration, a shudder through the steering when turning at low speed, or a clunk when reversing. On the road, any vibration through the steering wheel above 50 mph, wandering tracking, or knocking from the front end over uneven surfaces would warrant investigation of the suspension bushes, drop links and possibly the top mounts. The October 2023 brake advisories for both rear discs and the offside rear pad should be verified by direct inspection of remaining pad material, measuring disc thickness against the stamped minimum, and checking the rear caliper guide pins and slider mechanisms for seizing, as binding rear calipers are a common cause of uneven pad wear and overheating on Peugeot vehicles of this era. Finally, request evidence that the rear stop lamp has been correctly rectified and confirm operation of all bulbs personally, as repeat lighting failures can sometimes indicate poor earth connections or damaged body wiring rather than a simple blown bulb.