2017 Porsche Cayenne 4.1L Diesel · EEC 771

High annual mileage and significant cumulative wear represent the primary mechanical considerations for this vehicle, despite a recent history of clean test results. The most recent MOT on 27 April 2026 showed no defects, following a sequence of passes in 2025, 2024, and 2023 that also recorded no issues. This recent trend of passing without advisories follows a period in 2022 where both nearside and offside rear tyres were flagged as being worn close to the legal limit or worn on the edges. The vehicle has covered 171,647 miles over approximately nine years, averaging roughly 19,072 miles per year. This level of usage is considerably higher than the UK average for a vehicle of this age. Mechanically, this sustained high-intensity usage typically accelerates the degradation of consumable components and increases the likelihood of wear across the drivetrain, suspension bushings, and braking systems. While the recent MOTs do not show current failures, the total mileage necessitates a close inspection of all high-wear mechanical assemblies. Prospective buyers should focus their physical inspection on the rear axle and suspension components, given the previous advisory regarding uneven tyre wear on the rear axle in 2022. Uneven wear on the edges of the tyres often indicates issues with wheel alignment, worn suspension bushes, or potentially compromised control arms. During a test drive, listen for any knocking or clunking sounds when traversing uneven surfaces or speed bumps, and check for any pulling to one side during straight-line driving at moderate speeds, which could indicate geometry issues or worn steering components. The high mileage also warrants a thorough check of the braking system and fluid integrity. Although no brake defects were recorded in the latest test, the cumulative mileage suggests that brake discs and calipers should be inspected for excessive thinning or binding. Pay close attention to the brake pedal feel; any pulsation or judder through the pedal under braking could indicate warped discs, while any pulling to one side may suggest a sticking caliper. Given the heavy usage profile, ensuring the structural integrity of the underbody and checking for any signs of oil misting from the engine or gearbox is also essential.