A 958.2 Cayenne with a tiny federal file that still carries the generation's expensive fingerprints — the transfer case, timing-cover bolts, and headlight leaks are the real story, not the count.

The loudest engine theme in the 2017 file: the timing-chain-cover bolts are made of a material that owners report loosening and breaking, letting oil leak onto belts, tires, and brakes. Two 2017 filings describe it as a 'widespread known issue with Cayennes and Macans'; one noted Porsche ran a recall for the Macan but not the Cayenne, and that the repair was only covered because the owner had a factory extended warranty. Out of warranty this is a labor-heavy engine reseal. Have a Porsche independent check the front of the engine for oil weep and broken/backed-out cover bolts before buying.

The 958.2 matrix/LED headlights take on internal condensation and water (a 2015–2018 pattern); one 2017 owner was quoted $4,100 to repair, and recall 22V-656's caps only address adjustment-screw sealing, not the moisture. Separately, the 2017 S E-Hybrid drew coolant- and fuel-system warning complaints — a coolant/thermal-management warning while driving and a fuel-door/fuel-system fault — that dealers struggled to resolve. Inspect both headlights for internal moisture; if it's the E-Hybrid, exercise the hybrid system and watch for coolant or fuel warnings.

Two shared-defect items. The leather dashboard shrinks and lifts over the passenger airbag — the dominant 2016–2020 Cayenne theme — with dealers recommending a full dash replacement quoted around $8,000–$10,000 and no recall. And a 2017 owner reported the trunk drain (near the battery, main computer, and amplifier) letting water into the lower compartment and causing electrical damage, with per-component repairs 'upwards of $3,000.' Check the dash for lifting over the airbag and the trunk floor/spare well for water staining.

The generation's background maintenance items apply here too. V8 cars have plastic coolant pipes and thermostat housings a specialist calls a 'when, not if' leak (aluminum-upgrade fix ~$1,500–$3,000 labor). Air suspension eventually sags (compressor ~$1,500, single strut ~$2,500–$3,000 at a dealer). And keep the sunroof and body drains clear — a blocked drain can flood the interior electronics, a worst case that can total the car. None of these are unique to 2017; they're the cost of 958 ownership.