P0128 BMW -

Question

Hi so you think If I replace The thermostat sensor The problem may be solved? Or do I have to replace The complete thermostat unit ? Please let me know

Answer 1

For the thermostat it is integrated as a whole unit, and can only be replaced as a unit, P0128 is more for the thermostat., You can also set this code if you have just plain water and no coolant