2006 Porsche Cayenne 4.5L Petrol · SS55 CTS

The latest MOT test conducted in November 2025 resulted in a pass, yet the documentation reveals a concerning trend regarding the structural and braking components of this Porsche Cayenne. While the vehicle has successfully navigated its annual inspections, the recent accumulation of advisories concerning corrosion on all four suspension arms indicates that the vehicle is suffering from age-related degradation of its chassis components. This, combined with persistent warnings regarding worn and pitted brake discs throughout the vehicle's history, suggests that maintenance has been reactive rather than proactive. The transition from minor lighting defects in earlier years to widespread corrosion advisories points toward a vehicle that is now entering a phase where significant investment in suspension and braking hardware will be required to maintain roadworthiness. With a recorded mileage of 101,357 miles over twenty years, the vehicle averages approximately 5,000 miles per annum, which is relatively low for a luxury SUV of this calibre. While this suggests the vehicle has not been subjected to heavy daily commuting, low-mileage examples often suffer from issues associated with prolonged periods of inactivity. Mechanical components such as rubber bushings, seals, and hydraulic lines are prone to perishing and drying out when a vehicle sits for extended durations. Furthermore, the recurring advisories concerning brake disc pitting are a classic symptom of a vehicle that has spent significant time stationary, as surface corrosion develops on the friction surfaces and is not sufficiently cleared by regular, high-intensity use. When inspecting this vehicle, you must prioritise a thorough examination of the suspension arms mentioned in the latest MOT report. During your test drive, listen carefully for any knocking, clunking, or creaking sounds when traversing speed bumps or uneven road surfaces, as these are primary indicators of failing suspension bushes or compromised arm integrity. You should also perform a visual inspection of the underside, specifically looking for heavy flaky rust on the suspension mounting points. Furthermore, the brake system requires careful scrutiny; any judder felt through the steering wheel or brake pedal during firm braking is a clear sign that the discs are warped or excessively pitted and will require immediate replacement. Check the service history for evidence of fluid changes, specifically brake fluid and coolant, as these are time-dependent maintenance items that are frequently neglected on low-mileage vehicles. Given the age of the Cayenne, you should also inspect the tyres for signs of sidewall cracking or perishing, regardless of the remaining tread depth, as the rubber compound will have hardened over two decades. Check the electrical systems thoroughly, particularly the tyre pressure monitoring system and any brake booster warnings that have appeared in the past, as these can be indicative of complex and costly electronic faults. Verify that the engine starts cleanly from cold without excessive smoke or hesitation, and ensure the transmission shifts smoothly through all gears. Given the history of corrosion and brake-related advisories, I strongly recommend a professional pre-purchase inspection on a ramp to assess the true extent of the structural corrosion before committing to the purchase.