you are wrong, if you hard wire the ac compressor clutch and you hear the click sound that means the ac compressor clutch works but that can not tell you that the compressor is working.
ADK, I did read your response that you are color blind. Good info with one important clarification... as one of the comments noted, you pointed out the high pressure RED nipple. The low press. nipple used to fill with the refrigerant R-134 (R-12, also know as the brand Freon is used in older cars generally pre-1992 in German cars) is the nipple at the firewall closest to the windshield (from high pressure nipple, follow thick tube back toward windshield . Sometimes identified with a BLUE cap.
Thanks man!!!! My AC works now!!! I can't believe I didn't try this. I was without AC for almost a year and a half (I live in SC) so you just don't understand how much this video helped me out. My problem was that my wiring harness was corroded and prevented power from going to the fan. So I went to a local junk yard and replaced the harness. Shortly after that my AC started to work again.
IMHO your a/c wasn't working because it was low on gas [the R134a refrigerant which you put in]. The a/c system has low and high pressure switches in it so if you are low on gas it won't start up . by the way Freeon is rather dangerous for the environment whereas R134a is not . Air con will lose approximately 5-10% a year in tiny leaks and its also worth bearing in mind that the oil in the system is mixed in with the gas. That is why its a good idea to use your a/c at least once a week as it keeps all the seals and valve etc nicely lubricated . If you are checking for leaks on your a/c system a good thing to start with is looking for oily greasy residue on pipes,joins and particularly on the a/c rad which is right at the front of the engine bay ....in front of your water radiator. Other than that its all good .
Interesting but recommending a sealant for the a/c system means even a minor repair using a shop may require a complete replacement of the system due to the sealant interfering with the shops a/c service machine.
my ac worked this morning then when i went to leave in the afternoon it stopped blowing all together. i looked under the hood and the compressor spins but does not click off and on like it should to work. what could be my problem? i'm hoping its just a relay but unsure where they are located and what one since i do not have the diagram. i have a 2003 325 xi PLEASE HELP!
Hi on my 1994 bmw 318i my AC fan dose not work I put power directly to the fan and it turned so I think it my be the temperature switch, do you know were it connects to the engine, I now it is a 1994 but the temperature switch may be in the same place. or it could be the fuse do you know which fuse it is? your help would be appreciated.
Hi, i've got a similar issue on my 1996 520i (the older European type). Comp not starting etc... However, when i checked on the plug that goes into the compressor, it read 13Volts and when i put a battery to the compressor, it did engage. I can't understand how it seems to be getting the voltage up to the compressor but not starting up. Any ideas?
Thanks for the informative video but I didnt get the part where u said about the wire colors Red is for the computer Black is Negative and Green is?? think u said Red again for positive instead of Green. Thanks
Dude, Why didn't you check the refrigerant pressure in the system initially? So it sounded like you were initially low on refrigerant gas and hence the AC system would not activate due to low pressure. Hence the hot air coming out of the vent.
Nah, it was a combination of things, the least of the issues being the refrigerant. The dead giveaway was the outside thermostat reading. He focused on the right things. The refrigerant wouldn't effect how his outside thermometer reads out, then jacks up the air temperature.
I need help, My E70 X5 4.8i Aircon is not working. I Changed the Aircon pump, checked fuses if were not blown but still my aircon pump does not want to turn on and also the control panel is working...what could be the problem? please help I have tried everything
Everybodys having the same problem..im gonna try scraping the aux fan wires and connect wire&alligator clips.and see if the aux fan turns on and see if the compressor kicks in..if not im gonna hot wire the compressor with a wire&5amp fuse to see if the compressor kicks in..if not im going to add freon.and unplug the pressure switch and uhm check the fuse 75&76 and relays if i could find it..if i cant find the relays and fuses im gonna call the dealer everyday asking where the fk it is...
I think my car's air condition resistance gone bad. I here sometimes voice: srrrrr, and it continues after the engine is turned off. Do you have any idea what that noice is? Ac is working normally and car runs normally.
why my BMW 530D the auxilary fan never turns even there is air conditioner is on or the car runs on and off on the city? How do I test the fan is working good or not?
Your video did not help me my car is fully charged ,but the passenger side is hot and the driver side is cold. People said change the heat valve. And I change it and the problems still remain the same.
excuse me my friend you said red is for the control to let you know is working and then you said black is for negative and red is for positive but the only wire left in your hand is green
This was a masisve help!!! I'm having all the same exact issues in my 99 528i.. I have no leaks but recharging only works for a day or 2 so I'm looking everywhere
One of my AC fan line is Burn the Black wire, I replace it, well I took every line out just to make sure , I try to figure out where can I get a new fan wire connector.
I would first start off and replace the temp sensor . If that does work then you might need to add some freon. If that doesnt work then its the compressor.
Thanks for the knowledge... I did a electric fan conversion, i would like to hook up the electric fan to the ac system to turn on when i turn on the ac...do you know where the AC thermal switch is located? Thanks...
I have a BMW X5 e53 2004, and the aux fan stops working, i check the cable and still does not work, but when am on the highway and the car get cold again .. so maybe was the aux fan ... then........ all the aircon start to be hot regardless if driving on the highway or stops... i spend 700.00 the las time .. but i think this can be a minor fix... maybe is the fan clutch?
I have a 2003 BMW X5 E53 and when I first start car the a/c takes 10min to start blowing cold air(it's icy cold when it starts to work) I also notice the ac fan is deleting in turning on. Can the problem be a fan switch? If so where is located?
I just got my e39 2 days ago. I don’t know much about bmw, or even cars in general sadly. My car just blows heat. There is no ac at all. I’m going to buy some Freon and hopefully it helps
Hi. I have a BMW 540i E60 2008. I was using AC today and after 30 mins or so, the cold air gradually turned warm and now it is a bit hot air. Please advise, thanks
My 2005 BMW 330ci is not blowing cold air when Im trying to use the AC, and I add refrigeration , and ales changed the climate control and I still having the same problem, what else can I do to fix this problem? Can anybody help?
I am currently experiencing that the passenger side is not cold at all and driver side is blowing nice cold air. It sounds like I just need to recharge the system. Could you tell me how much do freon I need put into the system?
Did this guy really splice the insulation on is control wire to check to see if it engaged... omg. stopped watching the video there!!! No wonder he has every things that could go wrong go wrong. know he is going to have a problem with that wire later from rust, or corrosion. just have someone Susan's next to it, but most of the time you can just hear it.
hello i have a 1997 BMW 528I i got a radio form junk yard and put it in and the clock works and i can set it but the radio will not come on can you help
So my issue is I start the car and turn a/c and it blows but not cold... then I drive the car and stop the car and start the car and now my A/c blows cold.....??? Any ideas boss?
hello I have a 2006 BMW 325i when I turn on my my ac, no cold or hot air comes out ...until after i run the car for a while it will blow very little air. any suggestions please
hi all, hope someone can help, i got my ac filled yesterday when i press ac button revs alter a bit but compressor wont kick in, compressor works hard wired, all fuses i no of are ok, 3 in glove box and 20amp one in engine compartment, is there something im missing that controls it. thanks mike.
So you said that the red wire goes to the computer, and then you held the green wire and said the red wire is for positive battery charge... which is to the battery and which is to the computer?
hi I'm having pretty much the same problem but my ac and heat does not turn on.i have had some days where it cut on but been off for a while now. What could be the problem
thank you for your video so much you have no idea how you help me today i bought a car that was damaged on the left front and sometimes the a/c works but after watching your video im gonna go see if i can find thant sensor under the hood in the front of the car thank you very much
I have a 530i 2006 BMW and the air conditioner hose is clogged and the water is leaking inside the passenger floor board. Do you know how I can unclog it?
my radiator was damage.so the micanic take off the bumber to install the new radiator.now i find out my ac fan not spinning any idea what could be wrong?
Also observed minus(-)41 degrees temp displayed. But when park the car for a while & restart the engine suddenly hot air is coming from the vents for a few minutes and then again stops. Please comment or suggest.
Hi, Thank you for the video. I have 03 BMW 530i. Suddenly the fan is'nt at all blowing then took the car 2 Christine Bro. Lady mechanic tapped under the glove box then started working perfectly for few months. 2 days back I used a Sudden brake because 1 guy wants 2 turn suddenly to left from the rightmost lane. Y'day fan stopped working. I tried tapping under glove box but still nothing happens.
I have a question , my dad broke my AC because he's an idiot and was picking at stuff and now my AC won't even change temperature , it looks like it's glitched with the air pressure , I'm not sure but the air is stuck at one temperature and no other buttons will work.
Good morning!! The problem with my a/c is sometimes it blows cold and then for no reason at all it will start blowing hot air!!! I know it's an electrical problem because I can hit a bump and it will stop or start working!!! What do you suggest I do??
I put freon into the ac valve and the next day the pressure had dropped to nil and only hot air blowing. Does that sound like a compressor issue? Also, how would you check the compressor for clicking if the battery is in the trunk? Thanks
hi im Daniel from Ireland and i will explain my situation with my e39 530d . i got the freon but when click on the air cond button and i twist the the fan control i can hear it very low and there is some pressure coming out but not enough. what can i do please thank you
I've only warm air coming from my AC. I've checked and I have enough AC coolant. When I turn on my AC the aux fan runs but the is no movement from the compressor. I put a meter on the single wire that runs to the compressor and there is 5 volts. Is that the correct voltage or should it be 12 volts ? Cheers buddy.
Good questions so what do you do after you hear the click? Can you start the car, will the compressor come on so you can add freon? My problem is low pressure and compressor shuts down. I understand that, but need it to come on to add freon. Thanks
YOU MIGHT WANT TO TRY REPLACING THE BLOWER RESISTOR FINAL STAGE UNIT, MY AC WAS DOING THE SAME TILL STOPPED BLOWING AT ALL,REPLACED UNIT AND PROBLEM SOLVED,ITS ABOUT 60 BUCKS, I WATCHED VIDEOS ON HOW TO REPLACE IT,ITS SIMPLE AND TAKES 10 MINS,ITS BEHIND THE GLOVE COMPARMENT ATTACHED TO THE CENTER CONSOLE
When my 2008 BMW 528i is seated in the garage for more than two days, the a/c does not blow cold air for the first 15 minutes. After that it works normal. Any ideas what could be causing this?
you are wrong, if you hard wire the ac compressor clutch and you hear the click sound that means the ac compressor clutch works but that can not tell you that the compressor is working.
ADK, I did read your response that you are color blind. Good info with one important clarification... as one of the comments noted, you pointed out the high pressure RED nipple. The low press. nipple used to fill with the refrigerant R-134 (R-12, also know as the brand Freon is used in older cars generally pre-1992 in German cars) is the nipple at the firewall closest to the windshield (from high pressure nipple, follow thick tube back toward windshield . Sometimes identified with a BLUE cap.
Thanks man!!!! My AC works now!!! I can't believe I didn't try this. I was without AC for almost a year and a half (I live in SC) so you just don't understand how much this video helped me out. My problem was that my wiring harness was corroded and prevented power from going to the fan. So I went to a local junk yard and replaced the harness. Shortly after that my AC started to work again.
IMHO your a/c wasn't working because it was low on gas [the R134a refrigerant which you put in]. The a/c system has low and high pressure switches in it so if you are low on gas it won't start up . by the way Freeon is rather dangerous for the environment whereas R134a is not . Air con will lose approximately 5-10% a year in tiny leaks and its also worth bearing in mind that the oil in the system is mixed in with the gas. That is why its a good idea to use your a/c at least once a week as it keeps all the seals and valve etc nicely lubricated . If you are checking for leaks on your a/c system a good thing to start with is looking for oily greasy residue on pipes,joins and particularly on the a/c rad which is right at the front of the engine bay ....in front of your water radiator. Other than that its all good .
Interesting but recommending a sealant for the a/c system means even a minor repair using a shop may require a complete replacement of the system due to the sealant interfering with the shops a/c service machine.
Bro where did the black wire that you connected to the battery come from
You have said red but touched the green wire
My temp sensor is bad but still blows somewhat cold/warm. Will replacing the sensor rectify this
Thanks, I have the same issue.
Thanks for this. AC problems often become a game of whack-a-mole, just like yours did. I've been there, and not just once.
my ac worked this morning then when i went to leave in the afternoon it stopped blowing all together. i looked under the hood and the compressor spins but does not click off and on like it should to work. what could be my problem? i'm hoping its just a relay but unsure where they are located and what one since i do not have the diagram. i have a 2003 325 xi PLEASE HELP!
Hi on my 1994 bmw 318i my AC fan dose not work I put power directly to the fan and it turned so I think it my be the temperature switch, do you know were it connects to the engine, I now it is a 1994 but the temperature switch may be in the same place.
or it could be the fuse do you know which fuse it is? your help would be appreciated.
My 530 temp reads minus 40 and AC works just fine. 😉 So, not necessarily. I know my ambient temp sensor fell off but who cares, AC is just fine. 😉
Hi, i've got a similar issue on my 1996 520i (the older European type). Comp not starting etc... However, when i checked on the plug that goes into the compressor, it read 13Volts and when i put a battery to the compressor, it did engage. I can't understand how it seems to be getting the voltage up to the compressor but not starting up. Any ideas?
Thanks for the informative video but I didnt get the part where u said about the wire colors Red is for the computer Black is Negative and Green is?? think u said Red again for positive instead of Green.
Thanks
Color blind mabye? I think green is constant power (from what he said)
Dude,
Why didn't you check the refrigerant pressure in the system initially?
So it sounded like you were initially low on refrigerant gas and hence the AC system would not activate due to low pressure.
Hence the hot air coming out of the vent.
Nah, it was a combination of things, the least of the issues being the refrigerant. The dead giveaway was the outside thermostat reading. He focused on the right things. The refrigerant wouldn't effect how his outside thermometer reads out, then jacks up the air temperature.
I need help, My E70 X5 4.8i Aircon is not working. I Changed the Aircon pump, checked fuses if were not blown but still my aircon pump does not want to turn on and also the control panel is working...what could be the problem? please help I have tried everything
Everybodys having the same problem..im gonna try scraping the aux fan wires and connect wire&alligator clips.and see if the aux fan turns on and see if the compressor kicks in..if not im gonna hot wire the compressor with a wire&5amp fuse to see if the compressor kicks in..if not im going to add freon.and unplug the pressure switch and uhm check the fuse 75&76 and relays if i could find it..if i cant find the relays and fuses im gonna call the dealer everyday asking where the fk it is...
I think my car's air condition resistance gone bad. I here sometimes voice: srrrrr, and it continues after the engine is turned off. Do you have any idea what that noice is? Ac is working normally and car runs normally.
If your blower doesn't work try the blower resistor switch, on the 325 it is below the glove compartment to the left.
why my BMW 530D the auxilary fan never turns even there is air conditioner is on or the car runs on and off on the city?
How do I test the fan is working good or not?
Your video did not help me my car is fully charged ,but the passenger side is hot and the driver side is cold. People said change the heat valve. And I change it and the problems still remain the same.
excuse me my friend you said red is for the control to let you know is working and then you said black is for negative and red is for positive but the only wire left in your hand is green
Where do you wire the fan too?
Your video did not help me the passenger side is warm. My car is not short of freon gas because I'm a refrigeration mechanic.
This was a masisve help!!! I'm having all the same exact issues in my 99 528i.. I have no leaks but recharging only works for a day or 2 so I'm looking everywhere
Hey, did you ever find the issue? My car just pissed out a 140 dollar recharge in one day.
My ac just blows out hot air ,does that mean I can skip all the steps and just get that 30 dollar bottle?
One of my AC fan line is Burn the Black wire, I replace it, well I took every line out just to make sure , I try to figure out where can I get a new fan wire connector.
I would first start off and replace the temp sensor . If that does work then you might need to add some freon. If that doesnt work then its the compressor.
Thanks for the knowledge...
I did a electric fan conversion, i would like to hook up the electric fan to the ac system to turn on when i turn on the ac...do you know where the AC thermal switch is located? Thanks...
I have a BMW X5 e53 2004, and the aux fan stops working, i check the cable and still does not work, but when am on the highway and the car get cold again .. so maybe was the aux fan ... then........ all the aircon start to be hot regardless if driving on the highway or stops... i spend 700.00 the las time .. but i think this can be a minor fix... maybe is the fan clutch?
Alexei P. condenser bro
I have a 2003 BMW X5 E53 and when I first start car the a/c takes 10min to start blowing cold air(it's icy cold when it starts to work) I also notice the ac fan is deleting in turning on. Can the problem be a fan switch? If so where is located?
That's the same issuing I'm having with my e39, cold air comes only from the driver's side vent but passenger side is warm.
I just got my e39 2 days ago. I don’t know much about bmw, or even cars in general sadly. My car just blows heat. There is no ac at all. I’m going to buy some Freon and hopefully it helps
Im in ny by greenwich...get in touch if u do side work
Hi. I have a BMW 540i E60 2008. I was using AC today and after 30 mins or so, the cold air gradually turned warm and now it is a bit hot air. Please advise, thanks
My 2005 BMW 330ci is not blowing cold air when Im trying to use the AC, and I add refrigeration , and ales changed the climate control and I still having the same problem, what else can I do to fix this problem? Can anybody help?
I am currently experiencing that the passenger side is not cold at all and driver side is blowing nice cold air. It sounds like I just need to recharge the system. Could you tell me how much do freon I need put into the system?
Did this guy really splice the insulation on is control wire to check to see if it engaged... omg. stopped watching the video there!!! No wonder he has every things that could go wrong go wrong. know he is going to have a problem with that wire later from rust, or corrosion. just have someone Susan's next to it, but most of the time you can just hear it.
nice video thanks
hello i have a 1997 BMW 528I i got a radio form junk yard and put it in and the clock works and i can set it but the radio will not come on can you help
Good morning, I have a 2013 528i, need to put freon,I cant find where to put it can you help?
So my issue is I start the car and turn a/c and it blows but not cold... then I drive the car and stop the car and start the car and now my A/c blows cold.....??? Any ideas boss?
Hey does anyone know if this will work on my 1997 540i?
Red ac cap is the high side(liquid line) blue cap is the low suction side(vapor side. And it's not freon, but refrigerant.
hello I have a 2006 BMW 325i when I turn on my my ac, no cold or hot air comes out ...until after i run the car for a while it will blow very little air. any suggestions please
I thought the red was positive, black is negative/ground and green is for ??? and this guy calls the green wire ... red....whaaat
hi all, hope someone can help, i got my ac filled yesterday when i press ac button revs alter a bit but compressor wont kick in, compressor works hard wired, all fuses i no of are ok, 3 in glove box and 20amp one in engine compartment, is there something im missing that controls it. thanks mike.
Great vid so clear on explainstion my a/c on my E39 stopped working & right now on UK were hitting 34 by midday crazy heat for us
So you said that the red wire goes to the computer, and then you held the green wire and said the red wire is for positive battery charge... which is to the battery and which is to the computer?
hi I'm having pretty much the same problem but my ac and heat does not turn on.i have had some days where it cut on but been off for a while now. What could be the problem
so the -40 reading is bad or good?
Thanks so much for posting this!
I have a 1988 735i BMW and I need to know where the ac drier and the ac pressure switch is located . That is E32
Hi, can you send me the link for the temperature gauge thingy you ordered on eBay? I have the same name and model, and my car also reads -40! Thanks!!
Awesome info. Thanks so much!
thank you for your video so much you have no idea how you help me today i bought a car that was damaged on the left front and sometimes the a/c works but after watching your video im gonna go see if i can find thant sensor under the hood in the front of the car thank you very much
bmw x5 e53 3.0d 2003 ac blows cold but compressor dont cycle and ac fan not running at all
i have unplugged the compressor socket and put a test pen..i open the AC and its light up the test pen...and still got clicks sound.
I have the same problem but on a 2011 535i. The passenger side cold as ice and my driver side blows warm air. You think I just need a charge. Thanx
Leomar Flores Definite sign you're low
Let the old out before you add the new
I have a 530i 2006 BMW and the air conditioner hose is clogged and the water is leaking inside the passenger floor board. Do you know how I can unclog it?
my radiator was damage.so the micanic take off the bumber to install the new radiator.now i find out my ac fan not spinning any idea what could be wrong?
Also observed minus(-)41 degrees temp displayed. But when park the car for a while & restart the engine suddenly hot air is coming from the vents for a few minutes and then again stops. Please comment or suggest.
Hi, Thank you for the video. I have 03 BMW 530i. Suddenly the fan is'nt at all blowing then took the car 2 Christine Bro. Lady mechanic tapped under the glove box then started working perfectly for few months. 2 days back I used a Sudden brake because 1 guy wants 2 turn suddenly to left from the rightmost lane. Y'day fan stopped working. I tried tapping under glove box but still nothing happens.
When the temperature on the cluster says 40F all the time, its the ambient temperature sensor from outside. Simple fucking replacement, cheap sensor.
I have a question , my dad broke my AC because he's an idiot and was picking at stuff and now my AC won't even change temperature , it looks like it's glitched with the air pressure , I'm not sure but the air is stuck at one temperature and no other buttons will work.
@UsKjoe1990 lol I am color bind .. So maybe thats why lol.. The computer wire is the skinny wire .
@UsKjoe1990 lol I am color bind .. So maybe thats why lol.. The computer wire is the skinny wire .
Could be the fan motor needs to be replaced. Fuse ? or the wires are dirty and not getting a conection
my BMW AC stays on when my car is off and kills my battery everyday I don't kno what the problem is
Crestsideplaya14 H final stage resistor
Good morning!! The problem with my a/c is sometimes it blows cold and then for no reason at all it will start blowing hot air!!! I know it's an electrical problem because I can hit a bump and it will stop or start working!!! What do you suggest I do??
I put freon into the ac valve and the next day the pressure had dropped to nil and only hot air blowing. Does that sound like a compressor issue? Also, how would you check the compressor for clicking if the battery is in the trunk? Thanks
Bro I need your help my AC is not working how i can contact you ?
my problem is not blowing from blower motor fan is working by radiator and compressor is kick on temperature is normal what next?
hi im Daniel from Ireland and i will explain my situation with my e39 530d . i got the freon but when click on the air cond button and i twist the the fan control i can hear it very low and there is some pressure coming out but not enough. what can i do please thank you
@UsKjoe1990 i am color blind lol maybe thats why . The computer wire is the skiny one.
Dont do what this guy does! He does not have any idea of he is doing.
on E36 the 3 wires to the AUX fan aka AC fan = brwn/ground one= LOW and other HIGH speed. So the fan wire to pc sounds a little weird.
I've only warm air coming from my AC. I've checked and I have enough AC coolant. When I turn on my AC the aux fan runs but the is no movement from the compressor. I put a meter on the single wire that runs to the compressor and there is 5 volts. Is that the correct voltage or should it be 12 volts ? Cheers buddy.
Good questions so what do you do after you hear the click? Can you start the car, will the compressor come on so you can add freon? My problem is low pressure and compressor shuts down. I understand that, but need it to come on to add freon.
Thanks
Fully appreciate your video, thank you - keep em coming
My a/c compressor is coming on but not blowing in cabin?
E39 530 ac panel does not come on but the fan is constantly blow, what should i do (2002 bmw)
thanks for the info. i take it back to the shop and the guy told me the ac compressor is shot and thats why the fan not coming on.
At 4:30 the valve with the red cap is the liquid line / High pressure Not the low pressure
thanks so much, my cold was coming from one side like yours, thanks heaps in identifying the issue
YOU MIGHT WANT TO TRY REPLACING THE BLOWER RESISTOR FINAL STAGE UNIT, MY AC WAS DOING THE SAME TILL STOPPED BLOWING AT ALL,REPLACED UNIT AND PROBLEM SOLVED,ITS ABOUT 60 BUCKS, I WATCHED VIDEOS ON HOW TO REPLACE IT,ITS SIMPLE AND TAKES 10 MINS,ITS BEHIND THE GLOVE COMPARMENT ATTACHED TO THE CENTER CONSOLE
can you please tell me how to find it
its on the front passenger side on the left side of the center console assembly, behind the glove compartment. google e39 blower resistor location
thank you for the information
I have the x5 3.0i mines blow out hot air
I did everything you did but the air not shoot ING out
My bmw 528i ac does work but my compressor kicks on and off like every 30 seconds.
See my ac works but my high pressure makes a noise where it hides right where the wheel well is at
greenish liquid found it under my car?? can help me??...Carolina
When my 2008 BMW 528i is seated in the garage for more than two days, the a/c does not blow cold air for the first 15 minutes. After that it works normal. Any ideas what could be causing this?
what year is your car? and did that steering wheel come with the car?
greenish liquid found it under my car?? can help..Tnanku! Carolina
What pioneer deck did you have in there?
Amazing video, I drive an e36 and this helped me out a ton.
Why did you type it 3times?
What radio dash kit is that?
Thank u so much. This helped a lot.