i installed my new k03s in my 99.5 1.8t. i just got back from college and still everytime i start the car it beeps and flashes the coolant light. the tank is right at MAX and is not low at all. Where exactly is the sensor located that it is reading a coolant problem... could it be that the coolant isnt flowing thru the turbo correctly? any ideas?i figured it was the sensor behind the block that throws the low if theres a problem. i replaced it when the flange was leaking a few months ago, so i no it is still good. now my question is tho. if that is reading low coolant or coolant problem (watever the light means) where is the potential collant issue... the turbo or somewhere in the block. basically i just wanna make sure that my new turbo is getting the correct amount of coolant

 

I would loosen the line on the bottom of the turbo to see if coolant leaks out to make sure that it's flowin. did the new turbo come with the coolant plug in the right spot? It should be the same as your old turbo. When I got my new one I have to move the plug.

 

i used the one from the new turbo. they were exact fits.