I have a 2001 V70 2.4T. I believe that the ambient air temperature sensor must be faulty because the outside temp display reads incorrectly. On a really hot day (100 F) I get 26 F readings with the snowflake. The problem is that the A/C will not blow cold air when the car thinks that the outside airtemp is cold or freezing. This problem has been intermittant and has been happening for 3 yrs but now is getting worse. Before, the A/c would stop blowing cold air when the outside temp gage showed 36 F and below, but now it does it when it shows 26F and below (I live in Southern california and it don't get that cold here!) Does anyone know where the ambient air temp sensor is located in my car? I've heard from a local mechanic that it either is in the driver side mirror housing or somewhere up front behind the bumper? I tried to look for Haynes and Chilton's manuals vor a 2001 V70 but I guess they don't make them...

Have any of you replaced a temp sensor and is it fairly easy to accomplish?

Also, do you think that it is the a faulty ambient air temp sensor that is causing this problem - could it be something else that I'm not aware of?

Thanks for any help,

pb

 

Your car should have one in each mirror.
Not to bad to replace.
But I would haev the codes pulled to find out which one it is.

 

One of which in which mirror? My ambient air indicator quit, I lost control of right-side mirror. Are these directly related? What's in the other mirror? Is my interior climate control affected?

 

I forget exaclty which one is for which one.
Have the codes pulled and checked.

 

Thanks, Tech, but I'm still not clear on what the two are. Ambient air sensor and what else? Having the codes pulled and checked - I live 120 miles from dealership, is this something competent mechanic with right equipment can do?

 

With the right equiptment yes.
But most don't want to spend the $$$ to get the right stuff.
I will have to try to figure out which side is which.

 

Much appreciated. I have the right-side one on the way. Probably should have just ordered both.