2010 Peugeot 107 1.0L Petrol · WM10 AAV

A recurring exhaust-system corrosion theme defines the mechanical profile of this 2010 Peugeot 107, with two of the last four tests raising advisories specifically on the rear exhaust mounting and hanger, and the most recent test on 19 May 2026 noting a minor leak of exhaust gases from the system itself. All four recorded tests have resulted in a pass, and there are no recorded failures, advisories on the front end, or structural corrosion items, so the immediate roadworthiness position remains acceptable. However, the back-to-back exhaust advisories spanning 2022, 2023, and 2026 indicate a steady deterioration rather than an isolated incident, and the most recent leak finding suggests that progression has now reached the pipework itself rather than purely the mounting hardware. This is a predictable wear pattern on a sixteen-year-old vehicle, but for this particular car the exhaust appears to be the subsystem moving first. The recorded mileage of 67,887 miles against a sixteen-year vehicle age equates to roughly 4,243 miles per year, which is substantially below the typical accumulation rate for a city car of this type and points to either light private use or extended periods of standing. MOT test dates are evenly spaced at annual intervals between 2022 and 2026 with no apparent lay-up gaps in the testing record, which is reassuring because it means the braking, suspension, and undertray components have been regularly inspected rather than going untested for multiple consecutive years. Lower annual mileage generally means less wear on friction items such as brake pads and discs, lower stress on the clutch and engine internals, and reduced oxidation of brake lines, but it can also bring risks of stale brake fluid, dried suspension bushes, and corrosion of underbody items that are not regularly washed off. The exhaust findings already visible in the record are consistent with an underbody that has had time to oxidise between short trips, so a prospective buyer should anticipate similar underfloor corrosion elsewhere even though none has yet been recorded. Given the pattern on the rear exhaust, the first physical check should be a cold-start inspection from the rear of the car with the engine running, listening for any ticking, hissing, or puffing sound from the back box, silencer joints, or the flexi-section near the manifold, as the recorded minor leak could worsen quickly. With the engine idling, a hand held near the tailpipe should produce a steady, even exhaust pulse; an irregular rhythm points to an ignition-side issue more typical of the 1.0 litre 3-cylinder engine fitted to this model, while a strong smell of unburnt fuel suggests a lambda sensor or coolant temperature problem. On a test drive, listen for clonks or metallic rattles from underneath the rear floorpan when going over speed bumps, as a corroded mounting bracket can allow the rear silencer to swing and contact the body or heat shield, and feel for any vibration transmitted through the rear floor which often accompanies an exhaust system that has lost its secure mountings. The headlamp lens defect flagged in 2026 is minor but worth examining in daylight for any crazing, moisture ingress, or dull oxidisation that could progress to a future MOT failure. Although the MOT record does not contain any suspension, braking, or steering advisories, the rear exhaust pattern warrants a closer look at the underbody generally, particularly the rear beam axle mounting points, brake pipe runs along the chassis rails, and the fuel tank strap area, all of which can suffer similar corrosion on a low-mileage car that has covered many short urban trips. On the road, the 107 should feel light and willing to rev, with the semi-automatic or manual gearbox (whichever is fitted) selecting cleanly without clonks, and any tendency to wander or tramline in a crosswind should be evaluated against tyre condition rather than dismissed as normal. Pay particular attention to the rear brake feel, as lightly used cars can develop corroded rear calipers and stiff handbrake mechanisms even with low pad wear, leading to binding or pulling. Finally, request a borescope inspection of the rear silencer joint and hanger bracket, as the recorded leak advisory suggests the system is approaching the point where a replacement rather than a repair will be the most economical solution.