Air Conditioner system.
Thread Starter
Newbie
Joined: Nov 2022
Posts: 1
Likes: 1
2008 W211
Air Conditioner system.
Hi all!
Something doesn't let me sleep, i don't have any problem with my car but i try to understand the behavior of this car and why the engineers done that, what's the point of this system working like that. So.....
Why the engine RPM increase and the fan kick in at a low speed when the inside blower is on, the temperature is set on 24°C (for example) and the engine is not fully warm (70°C for example)?
I understand that the AC compressor (pump) doesn't have a clutch and is controlled by an electrovalve, so even if the AC is turned off from the button the compressor is still working a little bit.
So why they done that? What's the point of compressor working a little bit, fan kicking in even if outside is -2°C, the engine is not fully warm and then climate control is set on high temperature and engine increasing RPM? Thank you very much, this curiosity is killing me and i didn't find nothing about this all over the internet. 😅
Something doesn't let me sleep, i don't have any problem with my car but i try to understand the behavior of this car and why the engineers done that, what's the point of this system working like that. So.....
Why the engine RPM increase and the fan kick in at a low speed when the inside blower is on, the temperature is set on 24°C (for example) and the engine is not fully warm (70°C for example)?
I understand that the AC compressor (pump) doesn't have a clutch and is controlled by an electrovalve, so even if the AC is turned off from the button the compressor is still working a little bit.
So why they done that? What's the point of compressor working a little bit, fan kicking in even if outside is -2°C, the engine is not fully warm and then climate control is set on high temperature and engine increasing RPM? Thank you very much, this curiosity is killing me and i didn't find nothing about this all over the internet. 😅
Member
Joined: Dec 2021
Posts: 192
Likes: 50
E350 4matic Wagon
Secondary Air Fan
Hi all!
Something doesn't let me sleep, i don't have any problem with my car but i try to understand the behavior of this car and why the engineers done that, what's the point of this system working like that. So.....
Why the engine RPM increase and the fan kick in at a low speed when the inside blower is on, the temperature is set on 24°C (for example) and the engine is not fully warm (70°C for example)?
I understand that the AC compressor (pump) doesn't have a clutch and is controlled by an electrovalve, so even if the AC is turned off from the button the compressor is still working a little bit.
So why they done that? What's the point of compressor working a little bit, fan kicking in even if outside is -2°C, the engine is not fully warm and then climate control is set on high temperature and engine increasing RPM? Thank you very much, this curiosity is killing me and i didn't find nothing about this all over the internet. 😅
Something doesn't let me sleep, i don't have any problem with my car but i try to understand the behavior of this car and why the engineers done that, what's the point of this system working like that. So.....
Why the engine RPM increase and the fan kick in at a low speed when the inside blower is on, the temperature is set on 24°C (for example) and the engine is not fully warm (70°C for example)?
I understand that the AC compressor (pump) doesn't have a clutch and is controlled by an electrovalve, so even if the AC is turned off from the button the compressor is still working a little bit.
So why they done that? What's the point of compressor working a little bit, fan kicking in even if outside is -2°C, the engine is not fully warm and then climate control is set on high temperature and engine increasing RPM? Thank you very much, this curiosity is killing me and i didn't find nothing about this all over the internet. 😅
