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Hi,

I have Peugeot 307 SW 2.0 HDI 110hp from 2002. When weather outside is very hot (40 degrees, over 50 on sun), and heavy right foot/climb hill temp gauge got over 100 celsius. (from 90 to 102). A/C normally is on.

Bur car don't overheat. When I turn off A/C temp goes down. I can hear fan, but only when car is in null position.

When weather is normal for summer (30 derees) temp is normal (from 80 to 92 degrees) (over 90 only on uphills)

My local electrician told me that this is normal and that first fan speed kick at 100 deegrees (with no A/C), and second fan speed kick at 110 degrees. Is this correct?

Can this temp over 100 degrees be worse for engine?
Please give me some advice.
Thanks,
 
J

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I do believe there are two speeds for the radiator fans, but don't know the temps that they kick-in at. The fan will always be on the slower speed whenever the air con is switched on too.
 

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Hi jmkent,

Thanks for your reply. Yes, you are right, there were two fan speeds, and when a/c is on, first speed always work to cool compressor.

Any other peugeot specialist to answer on my questions.

Thanks,
 

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This might seem like a silly question, but is the fan spinning the right way?
I had a car where the fan was wired backwards. When the A/C is on the fan comes on. This then causes the fan to pull hot air from the engine through the rad rather than cold air into the engine bay. You can check this by watching what way it turns, or possibly a piece of paper on the grill.

Next you might want to change your thermostat. 100 isn't exactly over heating if the weather is 40C, although it is hot for a HDI engine.

Steve
 
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