2009 Mitsubishi Lancer 1.8L Petrol · SH59 XDO

A clear pattern of chassis and underbody corrosion has emerged across recent MOT tests on this 2009 Mitsubishi Lancer, and it is the defining mechanical concern for any prospective buyer. The 2026-03-05 test recorded a pass but flagged a minor exhaust gas leak, slight play in the nearside track rod end ball joint, deterioration of the nearside front anti-roll bar linkage ball joint dust cover, and corrosion to the rear sub-frame noted as not seriously weakened. The 2024-12-12 test carried forward the sub-frame corrosion advisory and added surface corrosion to both rear brake pipes running from the callipers forward, along with headlamp lens contamination that does not yet reduce light output. Earlier still, the 2021 test flagged worn rear suspension arm and anti-roll bar bushes on both sides, and the 2023 test repeated the brake pipe advisories. The trajectory is one of gradual deterioration rather than sudden failure, but the recurrence of brake pipe corrosion and structural advisories across multiple consecutive tests indicates that underbody corrosion is actively progressing and will require sustained monitoring. At 121,223 miles over seventeen years, this Lancer has accumulated roughly 7,131 miles annually, which is broadly typical for its age and consistent with regular commuter use rather than extended periods off the road. The MOT record shows annual testing from 2021 through 2026 with no significant gaps, and the steady year-on-year pattern suggests the vehicle has remained in continuous service. This level of usage would ordinarily be expected to produce wear on suspension components, brake friction materials, and exhaust hardware, and the advisory history aligns reasonably well with what one would anticipate at this mileage. There are no unusual mileage jumps between tests to suggest clock irregularities or towing-heavy use, which lends confidence to the recorded figure. For a prospective buyer, the priority areas on inspection are the underbody structure, braking system, and front suspension geometry. The rear brake pipes should be physically examined for surface rust, flaking, or any pitting that could develop into a leak, particularly along the sections running from the rear callipers toward the front of the vehicle. The rear sub-frame mounting points should be tapped with a tool or visually inspected from beneath for any perforation or serious section loss beyond what the advisory described. On a test drive, listen for any clonking or knocking from the rear suspension over uneven surfaces, which would suggest the worn bushes flagged in 2021 have now progressed to excessive movement. The nearside track rod end should be checked by rocking the front wheel with the steering loaded, feeling for any slack or clunking that would confirm the slight play has worsened toward the excessive threshold. Additional checks should focus on the components flagged at the most recent test. With the engine running, listen for any ticking or hissing from the exhaust that would confirm the minor gas leak has developed into a more significant fault, particularly audible on cold start. The front anti-roll bar linkage should be inspected for any splitting of the dust cover or grease contamination, which would indicate imminent joint failure. During a brisk drive, any pulling to one side under braking, a spongy pedal feel, or vibration through the pedal would point to brake disc wear consistent with the vehicle's mileage, even though no disc or pad advisories have yet been recorded. Finally, a thorough inspection from beneath on a ramp is strongly advisable given the cumulative sub-frame and brake pipe advisories, as corrosion of this nature can advance considerably between annual tests and may not be fully visible from a standard roadside examination.