[usco994]

Hello
I have a problem with the air conditioning .... cold air comes out but not very cold and if I put the bi zone no cold air comes out ... the compressor is ok and there are no leaks because I had a check done ... I noticed that when I activate the air conditioning the fan speed decreases

 

[PURPLE_2L_LX]

Low on refridgerant? Does the radiator fan kick in when you switch the AC on?

When you had it checked what did they do to it?

 

[usco994]

1 there is gas and there is no leak
2 the radiator fan I don't know which one it is (but if you mean the fan inside that is used for normal air it works but when I activate the air conditioning the speed decreases)
3 they checked the compressor 1 week ago and fixed a leak in the circuit because some rubber pads had hardened

 

[PURPLE_2L_LX]

Not the internal heater/blower fan, the fan on the radiator at the front of the car.

There is gas but how much gas? Possible there is enough to power up the AC but once it starts working the
pressure has dropped hence the fan cutting its speed. Only enough gas to produce a small cooling effect.

 

[usco994]

I hear the radiator fan only if the engine overheats but during the air conditioning I never heard it active ... about the gas I'm sure there is

 

[usco994]

what tests can I do to understand the problems that exist

 

[PURPLE_2L_LX]

If the radiator fan does not kick in then the AC wont run continuously. It needs airflow through the AC
condenser which is just a radiator attached to the cars cooling system radiator.

Testing how much refridgerant is in there requires specialist equipment that vacuums the gas out and then weighs
the amount of gas whilst holding a vacuum which tests for leaks. Then they refill with the correct weight of
refridgerant and run the system to test for leaks again.

Tests you can do is check the AC compressor clutch engages when you switch the AC on. But be very careful
you dont want to get body parts between the belt and pulleys. If the AC clutch engages then the radiator fan
in the front of the car should spin.

 

[usco994]

when I press the c button I hear the compressor that is activated and cold air comes out, but it is not very cold and if I go to activate the bi zone, very little air comes out .. so the compressor works?

 

[PURPLE_2L_LX]

It maybe just cooler air that was sitting in the ducts, check the pulley on the compressor. You should see it move and
click when the AC is activated.

 

[CC 123]

Probably not your case but I had a similar issue due to a faulty temp. sensor in the cabin.

 

[siacelestar]

See if anything comes up....