2012 SEAT Leon 1.6L Diesel · KM12 YLF

The most recent MOT on 2024-12-19 resulted in a failure with critical issues: an inoperative engine MIL (malfunction indicator lamp), worn front and rear brake discs, and an inoperative offside registration plate lamp. The windscreen damage was noted but deemed non-critical. This failure contrasts with the previous MOT on the same date, which was a pass , suggesting inconsistent reporting or potential oversight. The failure highlights a significant risk to safety and reliability, particularly the engine MIL issue, which could indicate unresolved mechanical faults. Recurring mechanical patterns include brake disc wear (front and rear) and tire/tyre-related defects , such as nearside rear tires worn close to legal limits and offside rear tires showing cracking. Shock absorbers also showed light oil misting in 2022 and 2021, indicating potential suspension wear. These issues suggest gradual deterioration of components under normal use, though none were classified as severe in earlier MOTs. The 2024 failure introduces a new concern: the engine MIL inoperative, which could signal unresolved engine or emissions system faults. The trend shows stability in some areas (e.g., no new major defects beyond brake wear) but worsening in others , particularly the engine MIL issue and recurring brake disc wear. The 2024 failure indicates that previously minor issues (e.g., brake disc scoring) may now require more urgent attention.