Porsche CAYMAN problems and owner complaints

On the freeway the brakes began pressing themselves, lifting the pedal had no impact on the brakes being applied. I had to shift into 3rd gear and floor it to move off the freeway safely. The wheel weights fell off the wheels the brakes were so hot I had to keep away from the wheel. The tire was damaged from the heat and the sidewalls began to form cracks. It looks like this is a BRAKE BOOSTER failure as I have now read several people reporting the fix for it.

Owner-reported narrative. Look up ODI 11556804 at NHTSA ↗

WHILE ON A PUBLIC HIGHWAY, THE SHIFTER CABLES FAILED IN AN ATTEMPT TO SHIFT INTO 6TH GEAR, LEAVING THE VEHICLE STUCK IN 5TH GEAR. VEHICLE WAS IN A GRADUAL ACCELERATION AT THE TIME OF FAILURE. THIS RESULTED IN AN UNSAFE CONDITION, AS INITIALLY IT WAS NOT APPARENT WHAT HAPPENED. EVENTUALLY IT BECAME APPARENT THAT A TRANSMISSION FAILURE OF SOME TYPE HAD OCCURRED AND THE VEHICLE WAS STUCK IN GEAR. SPEED CONTROL WAS IMPAIRED, AND VEHICLE WAS IN AN UNSAFE, DIMINISHED CONTROL CONFIGURATION. FORTUNATELY THERE WAS MINIMAL TRAFFIC WHICH ALLOWED THE SITUA…

Owner-reported narrative. 18,754 miles reported. Look up ODI 10548017 at NHTSA ↗

The vacuum pump (Porsche part number 9A1-110-090-02) cover retaining screws vibrated out causing the cover to damage the fuel lines and causing an engine oil leak. The fuel and oil were ignited by the exhaust or stray spark cause by the vacuum covers rotation and hitting other metal objects. This vacuum pump provides vacuum to the brake booster and during the event drastically reduces the ability of the car to stop. The car was quickly consumed by fire (30-45 seconds) and I received very minor burns to my left arm exiting the car (mid-engine so…

Owner-reported narrative. Look up ODI 11430927 at NHTSA ↗

Fuel tank is rubbing against the body causing visible rub marks on the plastic tank itself. This is caused by foam pads either being misplaced or not installed at all from the factory. Porsche themselves have a TSB on it (SB-1403), but they will not handle the fix outside of warranty. This seems like a major safety issue where a plastic component holding flammable fuel is rubbing against the metal body and causing a potential failure point where fuel can leak onto hot components. Porsche has stated this is not a safety issue, but I cannot see h…

Owner-reported narrative. Look up ODI 11433408 at NHTSA ↗

Code P1023 Fuel Pump pressure/ quantity too low at start. Rough Start when engine is cold, high pressure fuel pump appears to be leaking. Replacement part is out of stock, unavailable. Unsafe to drive, could start a fire.

Owner-reported narrative. Look up ODI 11560227 at NHTSA ↗

IGNITION COIL FAILURE ON CYLINDER #3 DUE TO NO HEAT SHIELD BETWEEN COIL & CATALYST WHICH IS SITUATED JUST BELOW THE COIL. THIS RESULTED IN SUDDEN LOSS OF POWER AND MISFIRES OF #3 CYLINDER. MECHANIC STATES THIS PROBLEM WILL HAPPEN AGAIN UNTIL A PROPER HEAT SHIELD IS INSTALLED BETWEEN THE COIL & THE CATALYST. I WAS IN TRAFFIC AT THE TIME ON A FREEWAY AT A SPEED OF 65 MPH.

Owner-reported narrative. 16,200 miles reported. Look up ODI 11078393 at NHTSA ↗

WHILE ON A PUBLIC FREEWAY, I HEARD A LOUD SNAP AND THE SHIFTER CABLES BROKE IN AN ATTEMPT TO SHIFT INTO 4TH GEAR, LEAVING THE VEHICLE STUCK IN 3RD GEAR. VEHICLE WAS IN A GRADUAL ACCELERATION AT THE TIME OF FAILURE ENTERING THE FREEWAY. THIS RESULTED IN AN UNSAFE CONDITION, AS INITIALLY IT WAS NOT APPARENT WHAT HAPPENED AND THE ENGINE OVER REVED CAUSING UNINTENDED ACCELERATION. EVENTUALLY IT BECAME APPARENT THAT THE VEHICLE WAS STUCK IN GEAR. SPEED CONTROL WAS IMPAIRED, AND VEHICLE WAS IN AN UNSAFE, DIMINISHED CONTROL CONFIGURATION. THIS ALSO C…

Owner-reported narrative. 18,517 miles reported. Look up ODI 10724454 at NHTSA ↗