Originally Posted by Dr_Bean
limited by the lifespan of the pump (membrane, solenoid rod).
Occasionally I have seen the rod of the pump freezes due to heavy oxidation, in areas where they put tons of salt on the road in the winter (like we do here in Holland).
So far all kits I ever delivered are still running flawless.
but I don't have any 100'000km tests... I do my best, no warranty.
The pumps don't seal well, and sometimes the vent is where washdown water can enter.
I agree with Dr Bean the rest of the pump should be long lived otherwise.