2013 SEAT Leon 1.6L Diesel · KW13 AAZ

A consistent pattern of minor advisories centred on the offside rear shock absorber and a persistent engine oil seep has defined the mechanical profile of this SEAT Leon across multiple MOT cycles, suggesting an underlying wear pattern rather than isolated test observations. The most recent examination on 23 July 2026 returned a pass alongside a fail on the same date, the failure driven entirely by an inoperative nearside front daytime running lamp, a defect that was clearly rectified to achieve the accompanying pass. Across the recorded history from May 2024 to July 2026, the offside rear shock absorber has carried an oil misting advisory at every single test, indicating progressive seal degradation that will eventually warrant replacement, while the engine oil leak, though not excessive, has been flagged at both 2025 and 2026 tests, pointing to a gaskets or seals that should be monitored. Front brake pads were noted as wearing thin in May 2024 and may now be approaching replacement if not already attended to, and the offside front tyre was flagged close to the legal limit at the 2025 test. With 108,178 miles accumulated over thirteen years, the Leon has covered approximately 8,321 miles annually, a broadly typical accumulation rate for a vehicle of this age that points to regular rather than sporadic use. The annual mileage between consecutive tests has remained consistent without dramatic spikes, and there are no extended gaps in the testing record that would suggest prolonged periods off the road, which is reassuring as long-term standing can accelerate deterioration in brake discs, dampers, tyres, and underbody components. The recorded mileage reflects steady combustion engine use, which means higher-mileage wear items such as suspension linkages, engine mounts, clutch components, and dual mass flywheel condition should be considered beyond what the MOT advisory history alone reveals. The oil leak advisory combined with over 100,000 miles of running means it is worth verifying the source of the seepage, as prolonged leaks onto drive belts, exhaust manifolds, or lower engine components can accelerate ancillary wear. For a prospective buyer, the priority inspection points should begin with the offside rear suspension, where the test drive should include a series of sharp compressions over speed bumps and undulating road surfaces to listen for any knocking, clonking, or excessive bouncing that would confirm the shock absorber has deteriorated beyond its misting stage. The front brake system warrants close attention, checking for pedal judder under firm application, any pulling to one side, or grinding noises that would indicate the previously noted pad wear has progressed to disc scoring, while a visual inspection behind the wheel should confirm whether new pads and discs have been fitted since the 2024 advisory. The engine oil leak should be traced from below, looking for fresh oil residue around the sump, cam chain area, and rocker cover gasket, and during the test drive any smell of burning oil, visible blue exhaust smoke on startup, or low oil reading on the dipstick would warrant further investigation. Additionally, the front DRL failure should be verified as fully rectified and the bulb holder and wiring checked for corrosion, as this component has now failed twice in the recorded history, which may point to a recurring electrical issue. Finally, ensure the undertrays are removed for any pre-purchase inspection to allow full visual access to the engine, subframe, and suspension components that were obscured at the most recent test.