Originally Posted by captainaudio
Perhaps it has something to do with the way the car is being driven. I am not by any stretch implying that the owners with multiple failures are mistreating their cars but it does seem strange that some cars have had multiple failures and some cars have had none.
Perhaps it has something to do with stop and go traffic, rapid acceleration, sustained high speed cruising, etc.?
Even if that was the case, it's still not really acceptable for the pump to fail just because of more aggressive driving (to a reasonable degree that is. I assume not everybody who experienced pump failures all raped their car). Especially on the 335, where these cars were purposely built for driving fun, and from a company that "the ultimate DRIVING machine" is their top priority.