Thanks for the info about the mileage. At least now we know the mechanical pump will not fail as early as the electrical pump.

I ended up replacing the pump and thermostat due to the coolant temperature not getting up to 87C, but staying in the 70s.

Mine was exhibiting the same. Not sure how long it had been that way. We bought it in this condition. It must have been a while though, the glow module has a burnt output. I assume from running a higher duty cycle due to the motor always running cold.