2007 Porsche Cayenne 3.2L Petrol · FJ07 BMU

A pattern of structural and underbody corrosion advisories, rather than any single dramatic failure, defines the mechanical story of this nineteen year old Porsche Cayenne. The most recent test on 13 October 2025 was a pass, but it was accompanied by five advisories all relating to corrosion of load bearing and chassis components: front and rear coil springs on both sides, front and rear anti-roll bars on both sides, and the rear subframe. Each was recorded as corroded but not seriously weakened at that point, meaning the tester judged the integrity still acceptable but flagged the deterioration for future attention. The trend across the available record is one of accumulating underbody and chassis corrosion rather than isolated incidents. Fuel tank support strap corrosion has been noted on three consecutive tests in 2022, 2023, and 2024, and in the 2025 test the corrosion picture has broadened to encompass the suspension and subframe. The only recorded failure was in October 2021 for an inoperative washer system, which was remedied before the pass recorded the following day. Aside from that, the vehicle has remained roadworthy at every annual test, but the chassis and underbody are showing progressive age related oxidation that warrants close physical inspection. The recorded mileage of 141,943 miles across roughly nineteen years equates to an annual accumulation of approximately 7,471 miles, which is broadly typical for a vehicle of this age. There are no extended gaps in the MOT history that would suggest the car has been laid up for long periods, and the consistent annual testing from 2019 through 2025 indicates reasonably continuous use. This level of mileage, combined with the vehicle's age, is consistent with the wear pattern visible in the advisories. Higher mileage examples of this generation of Cayenne tend to show accelerated corrosion in northern climates where road salt is used, and the recurrence of corrosion advisories on suspension springs, anti-roll bars, brake pipes, and structural components fits that profile. The mileage itself is not a concern, but it reinforces the need for a hands on inspection of underbody and chassis condition given that wear on consumables such as bushes, dampers, brake discs, and drive components will be proportionate to the distance covered. For a prospective buyer, the priority areas for physical inspection are the components specifically flagged in the advisories. The front and rear coil springs should be examined for surface pitting, scaling, or any flaking that has progressed beyond light corrosion, as springs weakened by severe corrosion can fracture under load and should be replaced as a pair on each axle. The front and rear anti-roll bars and their drop links should be checked for movement, play, or knocking over uneven road surfaces, and the rear subframe should be inspected for any bubbling, flaking, or perforation particularly around mounting points and where components attach, as subframe corrosion can rapidly progress from advisory level to a structural failure. The fuel tank support straps, noted as corroding across three years, should be examined for any thinning of the metal or signs of straps bowing under the weight of the tank, as a strap failure would allow the tank to drop and could constitute a dangerous defect. Additionally, the front brake caliper short pipes to the front pistons, flagged as corroded in 2022, should be inspected for any seepage, surface rust, or damage to the protective coating, with particular attention to the flexible sections. On a road test, listen for clonking or knocking from the front and rear suspension over speed humps and broken tarmac, which would indicate worn bushes, top mounts, or anti-roll bar linkages rather than simply corroded components. The steering should be checked for any vagueness, knocking, or vibration through the wheel, particularly over cambers and expansion joints, as worn tie rods or anti-roll bar bushes often manifest as imprecise or noisy steering. The brakes should be tested for any judder, pulling to one side, or a soft or spongy pedal, given the caliper pipe corrosion history and the likelihood of seized caliper slide pins on a high mileage vehicle of this age. The transmission, whether manual or Tiptronic, should be checked for smooth changes and any hesitation or flare on upshifts, as the Cayenne is known for mechatronics wear in automatic variants. Under the bonnet, look for any oil misting from the camshaft covers, coolant leaks at the timing chain covers, and evidence of recent fluid top ups that might mask underlying wear. Given the corrosion trajectory visible in the MOT history, a pre-purchase inspection on a ramp is strongly advisable before committing to purchase.