Porsche Cayenne engine dies and resets while driving at slow speed, critical safety issue with no diagnostic solution available on Porsche Cayenne

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Porsche Cayenne owners report experiencing critical safety issues, such as the engine dying and resetting while driving at slow speeds, which can lead to sudden shutdowns and potential accidents. Additionally, some owners of the 2011 model have reported engine failures at low mileage, resulting in dead vehicles and high repair costs. There are also reports of ignition coil problems, where wear and tear or modifications can stress the coils and spark plugs, leading to failures. Furthermore, certain models are known to have coolant system issues due to plastic coolant lines that may melt at high temperatures, causing leaks and significant engine damage. It is essential for owners to address these potential issues promptly by consulting a qualified mechanic or a Porsche dealership specializing in Cayenne models to ensure their vehicle's safety and reliability.

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