Car has 65,000 miles when water-pump failed catastrophically (pump drive shaft sheared) while driving causing breakdown. Needed to be towed to repair facility. 1. Water Pump failed - shaft connecting pully system to impeller sheared in half. Part is available for inspection. 65,000 miles on the engine 2. Car stopped running due to overheating and loss of electrical power - I had to stop in the middle of a busy street and wait for a tow. 3. Car was repaired by dealership and I have the damaged part, service reports and invoice. 4. This occurred without warning - while driving at approx 55mph I heard a "bang" and the coolant and electrical lights lit up on my dashboard. Engine temperature rose rapidly and battery drained quickly. Images of water pump drive shaft show a manufacturing defect of the shaft having been partially compromised prior to the sharing (failure). Google searches show that issues with Porsche Boxter water pumps - including my year and model.

- Putnam Valley, NY, USA

Driving on freeway at about 70 mph and intermediate shaft failed. Created dangerous situation as engine started billowing smoke, obscuring traffic causing many cars to swerve dangerously and had stop abruptly. Car towed to repair shop empire autohaus, Inc. Where problem was diagnosed. Owned car for three years with zero problems and regular service. Learned that many Porsche automobiles with the M96 engine (up to 25%) with less than 90,000 miles have had same problem and has yet to be addressed by manufacturer.

- Hoover, AL, USA