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      06-05-2015, 05:06 PM   #1
abckev
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2011 E92 M3 A/C Recharge Ports

Can anyone tell me where the low-side refrigeration port is on 2011 E92 M3? Using the A/C Pro Recharge but can't locate the low port. Thanks for any help!
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      06-06-2015, 09:46 AM   #2
Killerfish2012
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Quote:
Originally Posted by abckev View Post
Can anyone tell me where the low-side refrigeration port is on 2011 E92 M3? Using the A/C Pro Recharge but can't locate the low port. Thanks for any help!
I recently used the AC pro for my 2009. It's right below the driver's side cabin air filters. Remove the filter box screws, then remove like two more holding the plastic bottom. Then grap and yank it up with some muscle, and you'll see the opening.

It's easy. Good luck.
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      06-08-2015, 10:51 AM   #3
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Let me start by saying that I'm mechanically incline and would take a look at anything before going into a dealer. My advice with the AC is to take it to an ac guy. I already worked on replacing one evaporator because my friend thought he could do it. Some things are better to seek professional guys. I wouldn't do painting, windshield, tires and ac on any car. If you have done it 1,000 times on BMW go ahead, but with the question asked I don't think you have done it. Change fluids, filters, some audio, some coding, all mechanical issues and lots of detailing. Other than that I'm wouldn't go into my car M3. My advice....
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      06-09-2015, 07:42 PM   #4
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Quote:
Originally Posted by abckev View Post
Can anyone tell me where the low-side refrigeration port is on 2011 E92 M3? Using the A/C Pro Recharge but can't locate the low port. Thanks for any help!
I had more success taking it to an independent shop, they go by weight.
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      06-10-2015, 06:10 PM   #5
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You did good. $100 - $150?
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      06-12-2015, 07:17 AM   #6
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You did good. $100 - $150?
$160 each year vs $3500 to replace the evaporator. Guess which I choice I went with? Luckily the new car has ice cold air conditioning.
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      06-12-2015, 08:42 AM   #7
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Originally Posted by Dannys M3 View Post
$160 each year vs $3500 to replace the evaporator. Guess which I choice I went with? Luckily the new car has ice cold air conditioning.
How did you diagnose it as an evaporator issue? I think that might be my problem, I put dye in but couldn't find any leaks. Didn't check the evap yet thou.
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      06-12-2015, 12:25 PM   #8
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What are you seeing for the static pressure when you first connect?

Pardon the Highjack, but I am troubleshooting mine and am not sure what is going on. Compressor clutch appears to be engaged all the time regardless of settings but the pressure is 80 psi both high and low. Is the clutch different on an m3 or should the center of the wheel indeed stop?

Going to try to short the low pressure switch next of I can locate it.

Last edited by Locksmythe; 06-12-2015 at 12:29 PM. Reason: New info
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      06-12-2015, 12:46 PM   #9
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How did you diagnose it as an evaporator issue? I think that might be my problem, I put dye in but couldn't find any leaks. Didn't check the evap yet thou.
Mainly for the fact I had to recharge it every year of the 5 years I owned it. My leak was slow enough that if I charged it late spring time it would make it through the worst of the summer. Yes if the evaporator located under the dash is leaking you will not see the dye.
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      06-12-2015, 03:40 PM   #10
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how can I be certain its the Evap?
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