Question about the climate code Query point 51 (Motortemp.)

Hi together...

I have a short question: when I ask for the "climate codes", point 51 is the "motor temperature"....... Is that the temp. that has the cooling water? Because, it stays constant at 90 on display....

Or the other way around: I can use the climate to get the current cooling water temperature. question? ;-)

Ciao

Alex