E30 FREEZING Cold A/C!!! Dryer Replace, Charge R134a And Aux Cooling Fan Diagnose!
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- Опубліковано 17 жов 2024
- That's right!! Today it may have been only 65F outside, but I was able to make it 20F INSIDE! When you have your A/C system vented to atmosphere for long enough (and it doesn't take long), it's always best practice to replace the Dryer. It's only $15 at FCPEuro (64531466051). Also, the Air Dryer was foulded up due to the leak stuff I put in years ago, the dessicant inside the dryer becomes very ineffective.
Then we fill with R134a after properly evacuating the system. Very important to remove all moisture from the air conditioning system, but more importantly to ensure that we have no leaks, so this vacuum is super affordable and comes with everything you need (Amazon Link Below):
www.amazon.com...
When we filled, it was confirmed through ambient temp gauge only. I did not advise actual pressures or capacities since this is a custom setup with a different condenser and compressor, but I can assure you it does not take much! Took 12lbs for me.
Then we take a quick break and work on why my aux fan does not turn on when the engine gets hot. I have a SPAL 16" Pusher fan hooked up, but the fan does not work when the engine gets hot. Why? I think it's the radiator temp sender and I''ll prove how!
For more information about what I do and who I am, visit:
www.garageaholic.build
E30 M30, M60, M62/S62 Swap Guides available for purchase!
garageaholic.b...
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The only video on yt about e30 air conditioning thats worth watching. Will have my ac working again soon
I gotta say .... frank you’ve got the MOST informative content on UA-cam. Truly a diyers go to for bmws.
dean defrancesch wow Dean thanks man!
Awesome vid! Thanks man! I drive a '89 325i here in Phoenix, AZ
After looking for ac help for my e30 , watching 8min I finally noticed the swap lol. Nice
HAHAHAHA!! Yep! Hope you got what you wanted out of the video for AC though!
how did you switch from to pressure switch system to a single pressure switch system thanks
Man i need to reinstall the AC system in my v8 e30. This South Carolina summer has been brutal.
Do it!!
Luv this project!
Hi, just discoved your videos today, its all good content, we need to get you more views. Can I ask if you managed to connect the AC signal through the ECU or did you bypass it? As far as I know the MSS52 ECU uses a CAN input while the E30 like a E31, E36 and other older BMWs uses a cable switched by the climate control.
Good morning Frank, do you have a shop? and if so are you available to restore my E30 325is to the level and standards specification of your E30 with the M5 V10 engine? Thank you for the DIY info.
Aubrey
I think you mean m5 v8 - from the e39 m5. S62 396hp version!
Can the A/C condenser be changed out , without removing the front bumper and front grill?
Yes. You go from the engine bay side. It’s actually preferred that way. Just need to drain coolant, remove radiator. Still need to unhook the condenser lines and the fan wiring. That’s about it
How do I change a leaking condenser on my E30?,= Do i need to remove the front grill and bumper?
The condenser can be removed from either end actually. Need to remove the 2 hoses, fan connection, and the 2 10mm screws on the core support
So, it looks you will be replacing the rad thermoswitch then right?
My E30 has the old two switch system and also mine doesn't work so well.
I'm getting close to just getting a switch inside the cabin and just turn it on manually, it's becoming a pain really.
Also in the service manual, it says in order to test the switch, you need to take it out, and then put it in a pan with water, turn on the stove, check the water temp, and then at the correct temp, I think it was 91C for low speed and 99C for high speed, check if you have continuity. If you don't, replace.
@@hozisalehi Yes, you can do the stove test. But honestly using a heat gun is much easier. And typically can easily get the switch to that 220F temp where it would close. remember the system worked correctly before a component in the system failed. If you can identify the component(s) that failed, then just replace that and if that didn't fix it, then you likely misdiagnosed and you need to go back to the drawing board. It's always trial and error. If you have the BMW Schematics handy, you can see how the electrical system works and identify it pretty easily that way.. I hope that helps. but if you have a specific issue, let me know the details and I can help you. contact@garageaholic.build.
@@Garageaholic thanks dude, I'm kinda in the research and prep phase for a swap, so not too worried. Plus summer is almost past, cooler weather and all that, smooth.
Keep up the great content man!
hozzziii the dude thanks for watching, and my offer to help is always on the table!
@@Garageaholic thanks man!
Is your A/C system oem or aftermarket? i would love to have one :)
All OEM. S62 compressor - everything else e30 a r134a retrofit
can R134a go directly into the original air system?
Yes, but need new drier, and convert using high pressure switch only, and need all new o-ring seals in the entire system.
thank you!
wont that freeze the evap ?
Won’t what freeze the evap? AC has worked just fine this spring since it was overhauled last summer
Dude... you lost me when you got the parts wrong. I'm glad rigging things worked for you, but it ain't how I would do things.
Thanks for the vague response. I’d love to see one of your videos one day!
@@Garageaholic For something as sensitive as the AC system I would not cut and rig things. I would do that for upgrade mods if required, but not for stock systems that are liable to leaks.
@@Garageaholic Here is an example video from my BMW Channel...which admittedly is terrible in terms of content update consistency... with very long stretches of time between uploads.
ua-cam.com/video/Dx78CY3Jy7k/v-deo.html
@@matreyia ok, now we're talking. To your point, there is still a small leak in one of the lines. I have learned a lot about R134a retrofits since this video and plan to put out another video very soon for the E30 M3 build I'm finishing up on how to convert fully and how to fill/test the system to proper pressures. Again, thank you.
Description says 12lb of freon? I think it’s too much
No no, it's way less than that! Good catch!
@@Garageaholic I love your channel, been watching all your videos, perhaps U can help me diagnose my ac , e30 m52 converted to r134a properly with parallel flow condenser, aux fan working on low and high , problem is when on idle its not efficient about 50f but when driving on high way it gets to 10f
@@r1lukasz Do you have a stock fan? I'd upgrade to SPAL fan if you can fit a 16" in there.
That's your issue right there, air flow.
@@Garageaholic stock aux and stock spal fan , can You recommend any spal fan ? So is puller fan an issue? But how about aux fan keep it stock?
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