2011 SEAT Leon 1.2L Petrol · SC11 TSX

The most recent MOT test on 14 August 2026 resulted in a Pass, although it was conducted only three days after a prior failure on 11 August 2026 that was caused by dangerously exposed tyre cords on both rear tyres, classified as Dangerous defects. The immediate retest pattern suggests that the vehicle was repaired between the two presentations, but the broader trend across the last four recorded tests is one of progressive deterioration rather than stable maintenance. In 2024, the vehicle failed on seriously weakened rear suspension arms and incorrectly aimed headlamp projection beams, and in 2025 it failed again on a corroded and seriously weakened nearside rear suspension arm, a split nearside front CV joint boot, and a dangerous nearside front tyre tread depth below the 1.6mm legal limit. Recurring advisories for rear sub-frame corrosion, nearside rear suspension arm corrosion, oil leaks, anti-roll bar linkage play, and inner-edge tyre wear have also accumulated, which collectively indicate an ageing chassis and drivetrain that warrants close physical examination before purchase. The recorded mileage of 134,755 miles over approximately fifteen years equates to an annual average of roughly 8,984 miles, which is broadly typical for a car of this age and is neither unusually low nor excessively high. There are no significant gaps in the MOT history to suggest extended standing periods, and the test frequency appears consistent with regular road use, meaning calendar-based degradation such as tyre sidewall perishing, brake disc corrosion, or seized caliper sliders is less of a primary concern than mileage-related wear. Nevertheless, the cumulative mileage is substantial, and components such as the clutch, dual-mass flywheel if fitted, turbocharger if diesel, cooling system, and front suspension bushes will have experienced considerable mechanical fatigue. The recurring oil leak advisories over consecutive tests further support the view that engine sealing components or gaskets are gradually deteriorating. A prospective buyer should prioritise a thorough inspection of the suspension and underbody, given the repeated advisories relating to rear sub-frame corrosion and suspension arm corrosion. The nearside rear suspension arm has been flagged as corroded across multiple tests and was at one stage classified as seriously weakened, so a careful examination of all suspension arms, mounting points, and bushes for advanced corrosion or cracking is essential. On a test drive, listen for clonking or knocking noises from the rear over uneven surfaces, which would indicate worn bushes or anti-roll bar linkage deterioration, and pay attention to any vagueness in the rear handling or suspension squat under acceleration. The offside rear anti-roll bar linkage ball joint play noted in the latest test should also be checked, as this component is relatively inexpensive to replace but can progress to more serious stability concerns if left unattended. The brake system requires particular attention, given the advisory on the nearside rear service brake binding recorded in 2025 and the recurring oil leak advisories which may be contaminating rear brake components. During a test drive, the vehicle should be evaluated for any pulling to one side under braking, a soft or inconsistent pedal feel, or any juddering that would indicate warped brake discs, while a physical inspection should confirm that the handbrake holds the vehicle securely on an incline and that the brake fluid has been changed within the recommended two-year interval regardless of mileage. The headlamp lens film noted in the latest test does not currently reduce light output significantly, but restoration may be worthwhile for improved night visibility. Given the vehicle's age and mileage, verifying the service history for regular cambelt or timing chain replacement where applicable, coolant and brake fluid renewal, and 12V battery condition would also be prudent, as a fifteen year old car typically requires replacement of these service items even when MOT results appear satisfactory.