345 BYPASS VALVE VAC option

[BigSpell6466]

Based on what I’ve read on the forums, some users have changed the 345 BYPASS VALVE HVAC setting to “Without Bypass Valve (01)”. However, that has caused fault codes and errors in some cars.

Those who encountered these errors reverted the BYPASS VALVE HVAC back to its original value, 
"With Bypass Valve (02)”, and instead tried changing another setting: 
341 CLIMATE SMALL COOLANT CIRCUIT to “Without Small Coolant Circuit (01)”.

So, it seems that the correct configuration is likely one of these two settings.

[MrS60II]

Old post, but have any of you changed both settings?
I have for now changed the 341 setting and 345 is default.

I get errors "cooling system needs service"?
now that its very cold here (-23) and i set timer the heater seems to run longer and thereby throwing the error...?
when it runs shorter time no error occurs..strange..

cheers/H

---

[MrS60II]

I get errors (cooling system needs service) when setting only one option?
(B5 2022 Gasoline engine)
#341 changed and 345 default
#341 default and 345 changed

anyone of the above settings heats the engine...so thats good atleast

i'll test to set set them changed both and see what will happen..

cheers!/H

Edit: first test today with both settins changed and no error (will test further this way next week when i'm at work and use it every day).