2009 SEAT Leon 1.9L Diesel · OV59 TLU

A consistently clean MOT record across five consecutive annual tests, culminating in a pass on 3 December 2025 with no advisories or failures recorded, points to a vehicle that has maintained its roadworthiness fundamentals year after year. There are no repeat advisories clustering around suspension components, brake pipes, exhaust integrity, or structural corrosion, which are the usual wear points flagged on a SEAT Leon of this generation and mileage. Equally, there have been no emissions failures or catalyst-related defects, suggesting the 1.4 TSI or 1.9/2.0 TDI powertrain, depending on variant, has been kept in reasonable mechanical order. The absence of any recorded advisories across a five-year window is uncommon for a seventeen-year-old car and indicates that items such as coil springs, suspension arms, anti-roll bar bushes, and brake discs have either been replaced proactively or have not yet reached the wear threshold that testers would flag. Against an age of seventeen years, the recorded 172,769 miles equates to an annual accumulation of roughly 10,163 miles, which sits squarely within the typical usage bracket for a car that has seen regular daily driving rather than long idle periods or extreme high-mileage use. There are no unusual mileage spikes or gaps between tests, with each annual MOT falling within a narrow calendar window in November or December and the odometer reading advancing in a consistent, steady manner. This pattern suggests the vehicle has remained in active service rather than being laid up for extended periods, which reduces the likelihood of dried rubber seals, seized brake calipers, perished coolant hoses, or 12V battery degradation from standing. That said, the absolute mileage is high, and even with a clean test sheet, internally wearing items such as dual-mass flywheels, timing chain stretch on the petrol variants, turbo actuator mechanisms, and clutch assemblies will have accumulated significant wear that an MOT cannot detect. For a prospective buyer, the practical inspection priorities shift toward the items that a roadworthiness test does not cover, particularly given the high recorded mileage. On a test drive, listen for any rattle on cold start from the timing chain area, especially on 1.2 or 1.4 TSI variants, and feel for hesitation or turbo lag that could indicate worn turbo vanes or a failing boost solenoid. Listen carefully for clonks or knocking over speed bumps and uneven road surfaces, paying attention to the front suspension, as worn top mounts, control arm bushes, and anti-roll bar drop links are common on this platform at this age even when not yet flagged at MOT. Check for oil seepage from the cam chain tensioner area and around the turbo oil feed, and inspect the underside for any dampness from the air conditioning condenser or power steering pipes, which become brittle with age. The braking system warrants specific attention during any inspection. Although no brake-related advisories have been recorded, pedal feel under firm application should be firm and progressive, with no sponginess that could indicate a failing master cylinder or air ingress. On a motorway stretch, verify there is no steering pull to either side under braking, which would point to a binding caliper or uneven pad wear, and listen for any grinding or squealing on light application. Inspect the brake discs through the wheels for a visible lip on the outer edge and signs of corrosion pitting on the hat area, as high-mileage discs are often due for replacement even when within MOT pass limits. Finally, examine the exhaust system from the manifold rearwards for any blue smoke on overrun, which would indicate valve stem seal wear, and check for any play in the driveshafts by rotating the front wheels with the car raised, as constant velocity joint failure is a known wear item on high-mileage Leons.