Table 1 shows one common electrical system related problems of the 2018 Porsche Panamera.
| Problem Category | Number of Problems |
|---|---|
| Electrical System problems |
The main water pump on my 2018 Porsche Panamera 4s failed prematurely. This is not a simple external coolant leak; the internal seal failed, allowing pressurized engine coolant to migrate into the vehicle's vacuum system. The coolant traveled through the vacuum lines and contaminated the vacuum solenoids and change-over valves. This failure mode presents a significant safety hazard because the vacuum system controls critical engine components, including turbocharger wastegates and exhaust flaps. Contamination of these components can lead to sudden loss of power, "limp mode" activation while driving at highway speeds, or unexpected engine behavior, increasing the risk of a crash. Cross-reference to known defects: this vehicle utilizes the ea839 v6 engine platform, which is shared with Volkswagen and Audi vehicles (specifically the Audi s4, s5, sq5, and q7). Audi and Volkswagen have already acknowledged this specific manufacturing defect in the class action settlement fiscina v. Volkswagen group of America, inc. (case no. 2:21-cv-11251). Under that settlement, Audi extended the warranty on this water pump to 10 years/80,000+ miles for the exact same failure mode (coolant migration into the vacuum system). Despite my vehicle using the same engine and suffering the exact same mechanical failure, Porsche refuses to offer coverage or acknowledge the defect. I am requesting an investigation into why Porsche models equipped with the defective ea839 engine are excluded from the safety remedies and warranty extensions provided to Audi owners.
The contact owns a 2018 Porsche Panamera. The contact received notification of the NHTSA campaign number: 23v033000 (electrical system) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue and advised the contact to park the vehicle outside the garage until parts became available. The contact had not experienced a failure. Parts distribution disconnect.
Technology change from 3g to 5g. This discontinues the safety notifications including crash /location alerts. Porsche offered a free replacement, and after dealers had difficulty in installing, Porsche offers a minimum compensation, instead of fixing problem. This will affect all Porsche from 2018 and prior that were set up for 3g network connection . Thank you.