2015 Porsche Cayenne 3.0L Diesel · LG15 LGZ

The defining mechanical story across seven recorded DVSA tests is one of generally stable roadworthiness interrupted by minor isolated defects rather than a pattern of chronic or structural failures. The most recent test on 3 September 2026 returned a clean pass with no advisories, mirroring the same outcome recorded twelve months earlier in September 2025. Two failures appear in the record, but both are minor in nature: an offside side repeater with significantly reduced light intensity in September 2025 and a front windscreen wiper failing to clear the screen effectively in August 2022. The advisories captured alongside these tests cluster around tyre wear and rear brake pad condition rather than any structural, corrosion or suspension concern. With five passes out of seven tests and only trivial defects noted, the documented MOT history presents a relatively consistent picture of roadworthiness compliance, although it cannot in itself demonstrate mechanical reliability beyond the parameters of the test. Against an eleven-year vehicle age, the recorded 79,880 miles equates to an annual accumulation of roughly 7,260 miles, which sits broadly within typical usage parameters for a vehicle of this type. There are no conspicuous gaps in the annual testing cadence, with the earliest recorded test in August 2021 and the latest in September 2026, suggesting the vehicle has remained in continuous service rather than being laid up for extended periods. The mileage progression between tests is consistent with this steady usage pattern. Mechanically, this level of use means that ordinary service items such as brake discs, pads, tyres, suspension bushes and the air suspension components characteristic of a Porsche Cayenne will have accrued moderate wear proportional to the mileage rather than suffering either the accelerated degradation associated with very high annual mileages or the rubber and seal deterioration that can affect long-stationed vehicles. Tyre condition has been the most frequently flagged item in the MOT record, appearing in three separate tests since 2022, with advisories noting a nearside front tyre damaged or perished with tread damage in September 2024 and both rear tyres worn close to the legal limit at the same test. Earlier, an offside front tyre was similarly flagged in August 2022. On a physical inspection, prospective buyers should therefore examine all four tyres for even tread depth across the width, checking the inner and outer shoulders for uneven wear that may indicate suspension geometry misalignment, camber issues, or a failing air spring component. Visible cracking in the sidewall rubber, bulges, or uneven shoulder wear on a Cayenne can also point to worn suspension linkages or top mounts, which are known wear items on this platform at this mileage and warrant a deliberate check for knocking or clonking from the front end over speed humps and uneven surfaces. The other notable advisory thread concerns the rear brake pads, recorded as wearing thin on both sides during the August 2022 test alongside the wiper failure. While no further brake-related advisories have been issued since, the rear discs and pads on a Cayenne of this age and mileage should be physically inspected for pad material remaining, disc lipping at the outer edge, and any scoring or rust pitting on the disc surface. During a test drive, listen for any grinding or squealing on light brake application, feel for any judder through the pedal suggesting warped discs, and check for any pulling to one side under braking that may indicate a binding caliper. With the air suspension fitted as standard to this model, it is also worth listening for the compressor running excessively on cold start, feeling for the vehicle sitting level rather than leaning to one corner, and checking that the ride height adjusts correctly. Confirming the operation of the side repeater lens and the front wiper blade effectiveness, given their respective failure history, rounds out a focused pre-purchase inspection grounded in the actual components the DVSA record has highlighted.