Which factor plays a bigger role in increasing engine temperature with A/C on?


Karabiner98k

Kraftkurve King
You know that Air Conditioning system (A/C) increases engine temperature when it is turned on (especially going uphill).

I searched about the reason behind it and it seems that 2 factors are involved in engine temp rising:


1 - The extra load that A/C compressor exerts on the engine

2 - The extra heat transferred from A/C condenser to engine radiator

Please explain your reasons and give percentage for them. For example, if you think the 1st or 2nd factor has more effect on increasing engine temperature, give it more percentage.
 

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