2006 SEAT Leon Reference Sport TDI 2.0L Heavy oil · SC55 RKO

The maintenance trend for this 2006 SEAT Leon remains stable, culminating in a clean pass on 7 March 2026 at 107,380 miles with zero defects recorded. The vehicle presents a sound mechanical baseline at its current age, though the MOT history reveals a pattern of pre-test failures. The most recent failure on 28 February 2025 at 107,078 miles yielded no recorded defects, suggesting the owner addressed minor issues prior to the successful retest a week later. This indicates a reactive rather than proactive maintenance approach, where the car is pushed through testing and fixed only when necessary. The mileage accumulation is notably low for a twenty-year-old vehicle, averaging roughly 5,369 miles per year. Between the January 2023 test at 93,705 miles and the February 2024 test at 94,886 miles, the Leon covered just 1,181 miles over a twelve-month period. Usage then increased slightly, with the car traveling 12,494 miles between February 2024 and February 2025. The recent plateau from 107,078 miles in February 2025 to 107,380 miles in March 2025 confirms very light recent use. Such low annual mileage often points to short-trip driving, which can cause moisture buildup in the exhaust and engine oil, alongside potential brake disc corrosion from standing. Despite the clean MOT record, a physical inspection must focus on the vulnerabilities of a low-mileage, aging vehicle. Examine the brake discs and pads for surface corrosion, a common issue when cars sit idle or undertake only short journeys. Check the tyres for sidewall cracking and date codes, as rubber degrades with time regardless of tread depth. Inspect the suspension bushes and coil springs for perishing and corrosion, paying close attention to the subframe and underbody for structural rust. The exhaust system requires scrutiny for pinhole leaks caused by internal condensation. Verify the operation of all electrical components and assess the condition of the camchain and tensioners, as infrequent oil changes on a low-mileage engine can accelerate wear.