A/C not working

[Twans 92 325is]

When i got the car it had few problems like left windows didn't work, i just replaced the window regulator and now the windows work. But now i trying to figure out why the A/C doesn't work, could it be a bad climate control panel?
please help :help

[Bimmersoul]

We need much more info than that.
For starters (and assuming you do have a belt and a compressor there and that the blower in the cabin does work):
Do you hear a decrease on RPMs when you turn the A/C on?
Do the compressor clutch turns on?

Again, to difficult to help with little to no info

[Twans 92 325is]

We need much more info than that.
For starters (and assuming you do have a belt and a compressor there and that the blower in the cabin does work):
Do you hear a decrease on RPMs when you turn the A/C on?
Do the compressor clutch turns on?

Again, to difficult to help with little to no info
no decrease on RPMs when i turn A/C on
the compressor doesn't turn on, i don't even get power to the climate panel

[koteles]

what tipe of climate panel do u have? digital or analog ?

[Twans 92 325is]

what tipe of climate panel do u have? digital or analog ?

analog

[koteles]

it could be your a/c clutch gone bad...

[Twans 92 325is]

it could be your a/c clutch gone bad...

is there any to test a/c clutch and is it hard to replace

[Parabol]

Check fuses and be shur that you have a belt on the compressor. There are a few fuses to look at along with relays. stare easy then hard. Check with a test light or volt meter.

[Twans 92 325is]

Check fuses and be shur that you have a belt on the compressor. There are a few fuses to look at along with relays. stare easy then hard. Check with a test light or volt meter.

all fuses are good, but im not getting any power to the climate control panel

[Parabol]

did you test for voltage on the wires connecting to it? If it gets power than I would think the unit would be bad. If there is no power getting to it your going to have to hunt for it.

[Twans 92 325is]

did you test for voltage on the wires connecting to it? If it gets power than I would think the unit would be bad. If there is no power getting to it your going to have to hunt for it.

No so far I just tryed test light, ill check it this weekend with a volt meter.Thanks

[Parabol]

No so far I just tryed test light, ill check it this weekend with a volt meter.Thanks
I you hook to a ground and fish around on the connector (with a test light) you should be able to fined power somewhere. If not than lack of power is my guess.

[Twans 92 325is]

I you hook to a ground and fish around on the connector (with a test light) you should be able to fined power somewhere. If not than lack of power is my guess.

ill take another look at it again

[JoeDellio]

Im sure youll want your air in Hawaii, Im here in Florida currently with no AC so I feel your pain. Im getting it vacked tomorrow though. Does it get really humid out there, or is it always breezy?

[freakgeek]

Check your system from front to back, check belt, compressor and then check your pressure in the system. I beleive (and someone correct me if I'm wrong) that the system shuts down if the pressure or oil in system runs too low.

[Twans 92 325is]

Im sure youll want your air in Hawaii, Im here in Florida currently with no AC so I feel your pain. Im getting it vacked tomorrow though. Does it get really humid out there, or is it always breezy?
Yea its humid and breezy. I wish mine was that simple as gettin it vacked

[atlantisvip]

Compressor will not turn on if there is no pressure/freon in the system. I have not gotten my A/C working after 2 years so good luck. I bought a recharge kit but my system wont take the charge.. :dunno The pressure level just goes up on the gauge, but the compressor did kick in when I hooked up the recharge unit.

[Twans 92 325is]

Compressor will not turn on if there is no pressure/freon in the system. I have not gotten my A/C working after 2 years so good luck. I bought a recharge kit but my system wont take the charge.. :dunno The pressure level just goes up on the gauge, but the compressor did kick in when I hooked up the recharge unit.

i havent tried a recharge kit yet, when you turn on the a/c does any of the lights light up, mine dont so i dont think i getting power to my climate control panel

[atlantisvip]

The green light on the AC button turns on when you press it as long as the fan is on.. As does the recirculation and defrost button.

[Twans 92 325is]

none of my lights turn on, so is it my climate control panel thats bad


The green light on the AC button turns on when you press it as long as the fan is on.. As does the recirculation and defrost button.

none of my lights turn on, so is it my climate control panel thats bad

[Parabol]

There might be bad wiring someplace. Make sure that power is getting to it first. If there is not power than chances are that the unit is still good. Dose your heat work?

[Twans 92 325is]

There might be bad wiring someplace. Make sure that power is getting to it first. If there is not power than chances are that the unit is still good. Dose your heat work?
heat doesnt work either

[Parabol]

there's no juice getting to it or it's bad...

[Twans 92 325is]

there's no juice getting to it or it's bad...
i hope its just the climate control panel that bad

[Bimmersoul]

no decrease on RPMs when i turn A/C on
the compressor doesn't turn on, i don't even get power to the climate panel
Stop working under the hood (i.e. compressor, clutch, belt, etc) until you get power to the control panel

Check your system from front to back, check belt, compressor and then check your pressure in the system. I beleive (and someone correct me if I'm wrong) that the system shuts down if the pressure or oil in system runs too low.
Not likely his problem at this point since in order to build pressure on the system, the 'system' needs to be ON first.

i havent tried a recharge kit yet, when you turn on the a/c does any of the lights light up, mine dont so i dont think i getting power to my climate control panel
Don't do it.... not yet. Work on the climate control

heat doesnt work either
Another hint telling you that your A/C might not be the culprit. Going back to the control panel and/or fueses and wiring inside the cabin...



Did you check fuse by fuse... with a voltmeter or a light bulb?
Have you taken the control panel of the dash?

See, assuming that the fuses are fine by looking at them won't do the trick in many instances. When in doubt, I always pull them out, do a visual check, re
install them (with this you are re-seating the fuse back assuring they are not loose in the socket) and then I check them with a light bulb at each end of the fuse... you'll be surprise.

Now, in order to check your control panel, you have to take it off the dashboard... don't take it completely off because it is a bitch but have it all loose off the dash. Search the DIY here or at Pelicanparts.com for the guide to it.
Before assuming your control panel is the culprit, make sure you have disconnected the wiring harnesses on the back of it and you have checked that THERE IS power on the harnesses.

Although I am not your best advise for this problem, what I wrote is how I will start troubleshooting this problem. Do the above and report back. Perhaps I can guide you some more or someone more experienced will chime in.

Good luck

[Parabol]

+1 on that. That's more or less what i have been saying.

[Twans 92 325is]

Stop working under the hood (i.e. compressor, clutch, belt, etc) until you get power to the control panel

Not likely his problem at this point since in order to build pressure on the system, the 'system' needs to be ON first.

Don't do it.... not yet. Work on the climate control

Another hint telling you that your A/C might not be the culprit. Going back to the control panel and/or fueses and wiring inside the cabin...



Did you check fuse by fuse... with a voltmeter or a light bulb?
Have you taken the control panel of the dash?

See, assuming that the fuses are fine by looking at them won't do the trick in many instances. When in doubt, I always pull them out, do a visual check, re
install them (with this you are re-seating the fuse back assuring they are not loose in the socket) and then I check them with a light bulb at each end of the fuse... you'll be surprise.

Now, in order to check your control panel, you have to take it off the dashboard... don't take it completely off because it is a bitch but have it all loose off the dash. Search the DIY here or at Pelicanparts.com for the guide to it.
Before assuming your control panel is the culprit, make sure you have disconnected the wiring harnesses on the back of it and you have checked that THERE IS power on the harnesses.

Although I am not your best advise for this problem, what I wrote is how I will start troubleshooting this problem. Do the above and report back. Perhaps I can guide you some more or someone more experienced will chime in.

Good luck
i tested wires with a test light to and still wast getting power

[Bimmersoul]

i tested wires with a test light to and still wast getting power

C'mon... you want help? If the answer is yes, then take your time, type providing more feedback and proof read... ever since post one you want for us to magically tell you where the problem is and how to fix it.

This las post of yours... let me try to guess you... did you say that you ARE getting power at the harness? Did you even tested ALL fuses?

Sorry but I guess I am getting bored trying to help you with you providing little to no help to 'help' you




EDIT: I re-read your post and I guess you meant to say that you are not getting any power at the harness...???? Anyhow, you got a work more for us there to understand what you have done (or not)

[Parabol]

Get back under the hood and check ever fuse not only with your eyes but with the test light also. If you're still screwed up on this I'll pull mine out ( I have some obc work to do) and I'll post some pics as to what wire/'s should be live. Hang in there the answer will come...unless the controller is dead...then you were right all along.

[Twans 92 325is]

C'mon... you want help? If the answer is yes, then take your time, type providing more feedback and proof read... ever since post one you want for us to magically tell you where the problem is and how to fix it.

This las post of yours... let me try to guess you... did you say that you ARE getting power at the harness? Did you even tested ALL fuses?

Sorry but I guess I am getting bored trying to help you with you providing little to no help to 'help' you




EDIT: I re-read your post and I guess you meant to say that you are not getting any power at the harness...???? Anyhow, you got a work more for us there to understand what you have done (or not)

Sorry about not giving enough information. O.K so i check all fuses(they were all good) took each one out and then put it back in. Then i took the climate control panel to check if i was getting power to wire harness, i used a test light to check and still wern't getting any power. Got back under the hood and checked all wires then looked at compressor and there is a belt on there, this might be a dump question how do i check if compressor is any good.


Get back under the hood and check ever fuse not only with your eyes but with the test light also. If you're still screwed up on this I'll pull mine out ( I have some obc work to do) and I'll post some pics as to what wire/'s should be live. Hang in there the answer will come...unless the controller is dead...then you were right all along.
I took all fuses and checked each one and i ran a test light on them they were all good

[Bimmersoul]

Sorry about not giving enough information. O.K so i check all fuses(they were all good) took each one out and then put it back in. Then i took the climate control panel to check if i was getting power to wire harness, i used a test light to check and still wern't getting any power. Got back under the hood and checked all wires then looked at compressor and there is a belt on there, this might be a dump question how do i check if compressor is any good.


I took all fuses and checked each one and i ran a test light on them they were all good
Now you need to get a hold of a Bentley manual so you can test the right relays and to start tracing the right power wired from the fuse box to the cabin until you find where the fault is. If no one can help you with a scanned page or answer from the B-manual, I'll dig mine out during the weekend.

Don't worry about the compressor yet... not until you get power. Even an experienced and qualified person can't certainly tell if a compressor is good or bad just by looking at it. There are some obvious hints but... don't waste your time on it perhaps everything is fine there. Concentrate your time on getting power to the cabin.

[Twans 92 325is]

Now you need to get a hold of a Bentley manual so you can test the right relays and to start tracing the right power wired from the fuse box to the cabin until you find where the fault is. If no one can help you with a scanned page or answer from the B-manual, I'll dig mine out during the weekend.

Don't worry about the compressor yet... not until you get power. Even an experienced and qualified person can't certainly tell if a compressor is good or bad just by looking at it. There are some obvious hints but... don't waste your time on it perhaps everything is fine there. Concentrate your time on getting power to the cabin.
Ill check around and see if i get a hold of the manual. Is there a website that i can view the manual for free.

[peelsbimmer]

Sorry to thread jack. Where do you recharge the a/c at for 93 325is?

never mind I got it.