Coolant question

mikehb

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c240
Hi
I have a C240, for some reason the coolant temp rises when the air con is on full blast
does anybody have any Ideas why this happens
mike
 

drmw

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M6 Cab - prior to that, SL63 AMG, A-M V8 Vantage, SL55, SL500 and many more
I'm guessing here, but aircon works in the same way as a domestic fridge - somewhere in the system is a heat exchanger to get rid of excess heat. I think it is placed in front of the coolant radiator, so when you have the aircon on, the air that cools the conventional radiator is hotter (having passed through the heat exchanger first).

But, that's a guess.

And I'm happy with it :)
 
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mikehb

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c240
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thanks guys
 

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