2012 Peugeot 107 1.0L Petrol · FD12 YRC

The defining mechanical narrative of this 2012 Peugeot 107 is one of accumulating structural and corrosion-related wear on its underbody and braking system, evident across successive MOT advisories from 2021 onwards. The offside rear brake pipe has been flagged with corrosion on its front-to-rear section in every recorded test since 2021, progressing from a minor advisory in 2021 and 2023 to an outright Major failure on 11 July 2024, when the pipe was deemed excessively corroded in three separate defect entries. Although the vehicle subsequently passed its 2024 and 2025 tests, this brake line history indicates that the corrosion has either been temporarily remediated through section replacement or that the structural integrity has degraded to a borderline state where further deterioration is likely. The 2026 test on 22 July recorded a Pass alongside a PRS failure for an inoperative nearside rear stop lamp on the same day, along with advisories for a corroding rear subframe and play in the nearside front steering rack inner joint, both of which warrant close mechanical inspection. With four recorded MOT tests covering 2021 to 2026 against a recorded mileage of 65,795 miles and an age of approximately 14 years, this Peugeot 107 averages around 4,700 miles annually, which is notably below the typical mileage bracket for its age. This lower usage profile reduces wear on high-mileage items such as the engine, clutch, and gearbox internals, but prolonged standing periods or short-trip use can accelerate corrosion on ferrous underbody components and brake hydraulic lines, particularly where road salt exposure is involved. The annual MOT testing cadence from 2021 through 2026 shows no significant gaps, suggesting the vehicle has been used consistently enough to remain registered and tested, although the steady accumulation of corrosion-related advisories indicates that the underfloor environment has been working against the longevity of unprotected steel components. A prospective buyer should pay particular attention to the offside rear brake pipe routing along the underbody, checking for any signs of bubbling under paint, surface rust bleeding through, or flaking steel along the front-to-rear length, especially near the chassis mounting points and fuel line crossover area. The pedal feel under firm braking should be assessed for any sponginess that could indicate compromised pipe integrity, and the handbrake effectiveness should be evaluated on an incline given that the rear hydraulic components share the same corroding environment. The rear subframe, flagged as corroded but not seriously weakened in the most recent test, should be inspected for any perforation around mounting points, jacking locations, and suspension pivot interfaces, as these areas commonly progress from surface corrosion to structural loss on older French city cars. The nearside front steering rack inner joint should be checked by rotating the steering lock-to-lock with the wheels unloaded, listening for any clunks or slack that could indicate worsening wear, and any knocking felt over uneven surfaces may suggest the joint has progressed beyond the advisory threshold. Front brake components have been flagged for thin pads in 2021 and 2022, and the discs were noted as pitted or scored in the 2022 test, so the buyer should expect these consumables to require replacement imminently given the two-year interval since the last advisory. Both front tyres have been repeatedly flagged for wear close to the legal limit on inner or outer edges in 2024 and 2025, which can point to misalignment, worn suspension bushes, or tracking irregularities rather than simple age-related wear, and a test drive should include a check for steering pull or off-centre tracking on a flat road. The 2025 exhaust minor leak should be confirmed as resolved by listening for ticking under cold start or any whistling under load, particularly from the rear section. Finally, the failed stop lamp recorded on the 2026 test is most likely a bulb failure, but the rear light cluster wiring should be inspected for corrosion in the bulb holder contacts, which is a common fault on vehicles of this age exposed to wet conditions.