Air conditioning failure
 

Here is my situation:

My A/C had a sudden failure. One day it is working, the next day it stopped working. There was NO gradual warming of the air over time at all. All the setting were the same, but the air is hot! The air is blowing at the same speed but just hot.

I searched through the forums and others mentioned the FSR, Low refrigerent/leak. So i went to an indy shop and they hooked it up to their machine and it showed that all the pressure levels were within spec.

The shop mentioned that they believe it is an electrical problem and that its best i take it to the stealership to have it checked out.

I went ahead and changed the FSR since i was having that problem as well, but my A/C issues did not resolve?

Anyone have an idea what the failure could be? Aux fan? blower?

Thanks guys,
Musali

AC
 

My 01 was blowing hot air at a stop if I was moving the ac was working good I replaced the aux fan and now its working good. My aux fan was not starting when I would trun on the ac.

my A/C blows hot air when im travelling on the highway, i was thinking it was the fan too.

I opened the hood, and turned on the a/c button on the console and hte fan did not start.

However, two or three days later, i parked the car, shut the car off and walked infront of the car on my way to work and i hear a fan moise blowing. Not sure if its the radiator fan or the aux fan. IT seemed to be the aux fan.

so im pretty lost as to what i should do next besides take it to the dealer.

My X5 A/C also died. Took it to the dealer and it turned out to be a relay. They fixed it and it hs been ok since (about two months now).

This problem is usually the aux fan.

If your auxillary fan is not functioning you will still get cold air when the car is moving. If you have no cold air at all most likely you compressor is not running. with the AC on, open the hood and see if the compressor clutch is engaging and the auxillary fan is spinning. The most common reason for no AC is low freon or electrical like fuse or relay.

the aux fan when i took a look was not moving, so it should be the culprit, however at highspeeds i still get NO cold air at all. so im not sure what that means.

the fuses are intact. i checked those already.

where ar eth relays? and how do i check for that?

There may be an interlock between the auxillary fan to prevent the compressor to engage and visa-versa. So as others have said, the fan probably needs replacing You can check Online WDS at the top of the page to trace the circuit and identify the relay(s).

I had the same problem and replaced the FSR. However, after further investigastion the culprit was the aux fan. Had to replace the whole aux fan assembly..... Everything is working fine.......:thumbup:

I would check the auxiliary fan and keep your eye on the temp gauge.