2017 Peugeot Partner 1.6L Diesel · OU67 MMK

A clear pattern of progressive structural corrosion has emerged on this 2017 Peugeot Partner, with coil spring and general suspension component corrosion advisories appearing consistently across the 2025 and 2026 tests, alongside emerging cosmetic tyre deterioration on both rear tyres. The most recent assessment on 28 July 2026 passed, but the same five advisories were carried over from the earlier failed attempt that same day, indicating the underlying issues remained uncorrected at the point of retest. In 2025 the vehicle also presented with a deteriorating offside CV joint boot and an insecure battery, both of which have the potential to escalate if not remediated. The 2023 test returned a clean pass with no advisories at all, demonstrating that the corrosion picture has developed relatively rapidly over a two to three year window rather than being a long-standing characteristic of the vehicle. With 33,752 miles recorded over approximately nine years of service, this Partner has covered only around 3,750 miles annually, which is well below typical commercial or family use for this class of vehicle. The absence of any recorded MOT between September 2023 and August 2025 suggests a possible SORN period or off-road status, although a test was clearly undertaken in 2025 once the vehicle returned to the road. Such low annual mileage and any extended standing periods can contribute to accelerated degradation of exposed ferrous components, rubber boots, seals, and brake discs through surface corrosion and dry rot, even though major drivetrain wear from high mileage is unlikely. For a prospective buyer, the priority should be a thorough physical inspection of the front coil springs, suspension arms, anti-roll bar bushes, and any visible underbody structure, as the advisories suggest surface corrosion that could develop into a more serious structural concern within the next test cycle. On a test drive, listen for clonks or metallic rattles from the front suspension over speed bumps and uneven road surfaces, and pay attention to any vagueness in steering response or uneven tyre wear that might indicate compromised spring rates or weakened spring seats. Both rear tyres should be closely examined for cracking and perishing, particularly on the sidewalls and between the tread grooves, as perished tyres are unsafe regardless of remaining tread depth and would warrant immediate replacement. The offside driveshaft CV boot flagged in 2025 should be inspected for any remaining splits or grease loss, and the battery retaining hardware should be confirmed as properly secured to prevent vibration damage to the battery casing. Given the recurring nature of the corrosion advisories, it would be prudent to budget for forthcoming suspension component refurbishment, a set of replacement coil springs, and likely new tyres before the next MOT is due. A pre-purchase inspection on a ramp would be strongly recommended to assess the extent of the underbody corrosion and confirm that no component has yet crossed the threshold into the seriously weakened category that would precipitate a future failure.