A/C issue for brand new owner
08-20-2010, 11:16 PM
#31
If idling in S. Florida traffic doesn't cause the condition in my car, then I can only assume that something is wrong with yours. If Infiniti can't fix it, then they can own it again.
08-20-2010, 11:28 PM
#32
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Just got an update from the dealer. There is a new software update available today for the A/C system when the car is at low idle. They are going to apply it and keep it one more day to test the fix.
Also, found this on the infiniti website:
Infiniti Publications
"ITB10051
IF YOU CONFIRM: At times, the A/C blows warm with the engine at idle speed, ACTION: 1. Refer to Step 2 in the Service Procedure to confirm this bulletin applies to the vehicle you are working on. 2. If this bulletin applies, reprogram the ECM. See this bulletin for further detail."
Also, found this on the infiniti website:
Infiniti Publications
"ITB10051
IF YOU CONFIRM: At times, the A/C blows warm with the engine at idle speed, ACTION: 1. Refer to Step 2 in the Service Procedure to confirm this bulletin applies to the vehicle you are working on. 2. If this bulletin applies, reprogram the ECM. See this bulletin for further detail."
08-22-2010, 07:02 PM
#33
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Yeah, wanted to give it a few days before giving an update. So far, it seems to have fixed the problem. I have been driving it the same way. I haven't seen the rpm dropping to 500 anymore and haven't felt warm/humid air coming from the vents while stopped either.
08-23-2010, 10:15 AM
#34
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Good to hear...was the software update part of the ITB or a separate solution? I brought the ITB10051 to my dealers attention, so they most likely will reprogram the ECM when I take my car in next weekend. Any additional info would be greatly appreciated...even your technician's contact info to pass along to my technician.
08-24-2010, 09:04 AM
#35
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Good to hear...was the software update part of the ITB or a separate solution? I brought the ITB10051 to my dealers attention, so they most likely will reprogram the ECM when I take my car in next weekend. Any additional info would be greatly appreciated...even your technician's contact info to pass along to my technician.
08-26-2010, 09:35 PM
#36
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Latest update: The dealership has my car for the 3rd time. Per my state's lemon laws, if the car goes into service 4 or more times, it is considered a lemon.
They called today and told me they couldn't reproduce the problem. I let them know that since I reproduced the problem for another dealership, it's up to them to fix it. They agreed. For the first time today, they brought up possibly having to replace the car. My problem isn't just the hot air that blows at low RPM, but blowing hot when the car starts. They couldn't reproduce the issue, but it hasn't been hot enough this week to recreate it. I'll keep you updated.
They called today and told me they couldn't reproduce the problem. I let them know that since I reproduced the problem for another dealership, it's up to them to fix it. They agreed. For the first time today, they brought up possibly having to replace the car. My problem isn't just the hot air that blows at low RPM, but blowing hot when the car starts. They couldn't reproduce the issue, but it hasn't been hot enough this week to recreate it. I'll keep you updated.
08-31-2010, 11:47 PM
#38
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Got the car back yesterday. They tell me that a solution came out on friday for the issue. Essentially, they tell me that since the vehicle was idling so low, it was cutting off the A/C in "safe mode." So far so good....maybe they finally solved the issue?
09-02-2010, 04:44 PM
#39
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Glad to hear of your success...so, essentially, at very low idle rpm's there is a trigger mechanism putting the a/c in safe mode. Any idea if they have a specific name for the solution that came out on Friday? I'm taking my car in this Saturday and they are planning to reprogram the ECM based on the ITB10051 mentioned earlier in thread, but that didn't work for you. Trying to avoid multiple visits. Thanks again for info.
09-03-2010, 09:33 PM
#40
Odd that this isn't a widespread problem. If the ECU programming is causing the problem, I'd think an entire VIN range would be affected.
09-04-2010, 10:54 AM
#41
I haven't had any problem with the air conditioning blowing hot air and I live in SW Florida.
I was wondering if you knew what your idle was set at before they reset it and what it is set at now?
I was wondering if you knew what your idle was set at before they reset it and what it is set at now?
09-05-2010, 01:02 PM
#42
Well, add me to the ranks of the G37 owners with no a/c. The compressor won't engage the clutch at any rpm. So it will be interesting to see what Infiniti comes up with as the solution to this widening issue.
I only have 8800 miles on the 2010.
I have an idea that it is not the clutch or compressor itself but some sort of pressure / limit switch, or control board has failed. There would be brief instances where the a/c seemed to be putting out warm air previously and then start cooling as usual. I just chalked that up to hot air captured that needed to be expelled. But this is pretty obvious.
More than likely it is a bad batch of supplied components that Infiniti got and it is affecting a broad number of cars.
The dealer had no problems seeing the issue and hopefully will have a fix for it. In the meantime I have a loaner EX which gets me around.
Sounds like Infiniti will likely be doing a recall to address this at some point because it looks like the tip of the iceberg. Too many new cars having similar problems.
I only have 8800 miles on the 2010.
I have an idea that it is not the clutch or compressor itself but some sort of pressure / limit switch, or control board has failed. There would be brief instances where the a/c seemed to be putting out warm air previously and then start cooling as usual. I just chalked that up to hot air captured that needed to be expelled. But this is pretty obvious.
More than likely it is a bad batch of supplied components that Infiniti got and it is affecting a broad number of cars.
The dealer had no problems seeing the issue and hopefully will have a fix for it. In the meantime I have a loaner EX which gets me around.
Sounds like Infiniti will likely be doing a recall to address this at some point because it looks like the tip of the iceberg. Too many new cars having similar problems.
09-06-2010, 12:02 PM
#43
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Good news...a/c is fixed. Scheduled an appointment with dealer and informed tech of ITB10051 as well as experiences of other G37 owners. Tech said Infiniti has a software update to go along with reprogram/resetting of ECM. Problem was rpm's dipping below 500 and triggering a/c system response to protect a/c at such low idle. I now notice idle around 600-700 rpm at stops and a/c stays fully engaged.
