So I checked the foult codes again, so now what I can see more is water valve, right and left, but that is because I bypassed the valve, but I got one foul (not in IHKA) auxiliary water pump 00e71d so may I this is the reason why coolant doesn’t goes in circle (doesn’t know how to say it correctly in English) but problem is that that I doesn’t know where is it standing on my car so doesn’t how to check it

 

I found something new, try to turn on additional heater with inpa. At first some kind of pump turn on, and in all heating pipes finally started moving coolant in circle,

 

So a bad temp sensor somewhere since you can activate the pump

 

can you explain this a bit? (Doesn’t get what you mean, got some problems with English) the last results, after start heater with inpa. I put the water valve again. Bleed the system, and for now it’s look okay, but still need to find the problem why it’s happened, because on days I have I journey (about 2k) so I want that it will not happen again

 

A temperature sensor tells the pump when to turn on. If you can turn on the pump from INPA then we know the pump is working and the harness. Need to figure out what temperature sensor tells the pump to turn on. Or maybe it is the heat button on the IHKA which is failing. Since you said INPA had no IHKA errors then I'm leaning towards a temp sensor failing.

 

okay I will try to figure it out, thank you for the help 👍