345 BYPASS VALVE VAC option

[kostik_xc70]

Good day to everyone.
Can you tell me who changed the 345 BYPASS VALVE VAC option to 01 Without a bypass valve (in this case, both the engine and the interior heat up). Was there an error in the cooling system after starting the Webasto heater for a short time and for a long time?
Also, who just dropped the power connector from the three-way valve, did they get an error on the cooling system after starting the heater for a short time and for a long time?
It is suspected that when the connector is reset or the configuration is changed, the software inside the climate control unit still works according to the algorithm in the presence of a three-way valve.

[petem69]

Hi,
I did this 345 Bypass valve change 3 weeks ago for a 2021 B4 V60 CrossCountry.
No errors, short or long time. Works fine.

[kostik_xc70]

Hi,
I did this 345 Bypass valve change 3 weeks ago for a 2021 B4 V60 CrossCountry.
No errors, short or long time. Works fine.

It is believed that the error occurs when several factors are combined.
By the way, along with option 345 (eliminates the operation of the three-way valve, without changing the logic of the climate when starting Webasto), it seems that option 341 should also be changed (it may change the logic of operation)