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Mazda CX-7 AC problems

147 messages,  Last post on Nov 17, 2009 at 3:51 PM

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#87 of 147 Re: Easy A/C cooling FIX. [wwest] by sdbobo619 May 13, 2009 (10:10 pm)
Replying to: wwest (May 12, 2009 8:42 am) Call MAZDA customer service in IRVINE,CA and explain the situation, they know they have higher than acceptable failure rates with the 2007 CX7 AC system, as mysteriously the system was redesigned the following year. Tell them you expect them to take care of it and that you are aware of the issues with the CX7 AC system. And FYI 1200.00 for the parts only is ridiculous and is a scam, your dealer is trying to show he is helping but is just burying the cost of the labor in the PARTS..... I had my whole system replaced with labor and tax and the bill was 1400.00 but I called mazda and got them to split the bill as my car had 39.5K. So I saved 700.00 by doing some research and spending 15 minutes on the phone... Replies to this message: wwest (May 14, 2009 8:45 am)
#88 of 147 Re: Easy A/C cooling FIX. [sdbobo619] by wwest May 14, 2009 (8:45 am)
Replying to: sdbobo619 (May 13, 2009 10:10 pm) "..mysteriously..."   Not to be on Mazda's side, not by any means, but it was about this time period that many manufacturers began the switch to the new variable displacement compressors to improve FE.   And God knows the CX-7 could use some FE improvment.
#89 of 147 Re: Have the AirCon issues been sorted now? [satz24] by defreitasm Jun 01, 2009 (11:53 am)
Replying to: satz24 (Feb 08, 2009 1:02 pm) Mine started making noise so I got it replaced before it actually went completely. Unfortunatly it happened at just under 38,000 miles so it cost me about 1200 to repair. I had no idea that this was a common failure.
#90 of 147 Re: Have the AirCon issues been sorted now? [satz24] by runnernic Jun 02, 2009 (11:40 am)
Replying to: satz24 (Feb 08, 2009 1:02 pm) i have a 2008 grand touring cx-7 which i leased brand new in september... i have had nothing but problems... my truck is going in for the 3rd time tomorrow... i just had a new compressor and clutch put in because it was blowing out hot air.. now, if i leave the a/c on, the more i drive the warmer the a/c becomes.. it's crazy i'm so fed up about this... every time i accelerate, it blows out hot hot air... then, it doesn't return to even being somewhat cool... the 1st time i went in, they said there was absolutely nothing wrong with my truck and then i went back again because i knew i wasn't crazy... it's so ridiculous, i have to leave the car to get it checked pick it up then bring it in again for them to fix it... i had a honda before this and never had one problem with it! i'm so torn on what to do they said among cx-7's it's common for the compressor to stop working Replies to this message: wwest (Jun 03, 2009 12:19 pm) runnernic (Jun 23, 2009 2:36 pm)
#91 of 147 Re: Have the AirCon issues been sorted now? [runnernic] by wwest Jun 03, 2009 (12:19 pm)
Replying to: runnernic (Jun 02, 2009 11:40 am) Almost all modern cars with AC will disable the compressor as a preventative/protective measure if the engine coolant temperature approaches the point of overheating, not ACTUAL overheating, just rising to a nearby level.   Most of these vehicles, if not all, do not have any type of indication to the driver as to what or why this has happened. But in most vehicles this disabling of the AC compressor would be so temporary that the driver would take no notice.   "..every time i accelerate..."   Hmmmm...   TurboCharged engine...water cooled turbo....??   Newer variable displacement AC compressor...??   Lets suppose your engine is normally running slightly hot, on the hot side of the operational envelope. Then add the extra HEAT of cooling the turbo when you are accelerating and it could be entirely possible that the AC compressor will be disabled until the engine coolant temperature declines to something nearer to normal operating temperature.   The old fixed displacement AC compressor systems always had a reservoir for temporary storage of liquid refrigerant. The compressor only ran if/when this "reserve" was exhausted. The new variable displacement compressor can be set to compress refrigerant ONLY as fast as it is being used up.   So if the compressor is disabled even for a relatively short period the loss of cooling effects will noticed almost immediately.   But it sounds as if your engine/turbo/coolant may be always running slightly HOT. Replies to this message: runnernic (Jun 23, 2009 2:36 pm)
#92 of 147 AC Compressor by theblackscotty Jun 16, 2009 (3:35 am)
I found this forum as a result of searching for AC Compressor problems on my 2007 Mazda CX-7. I was about 250 miles from home when my vehicle became non-drive able. I would like to add the following information:   1) The vehicle has just under 44,000 miles on it. 2) Dealership tells me that the cost to repair just the compressor (which seized) is $1,400 (I do not know if this includes labor, but I suspect that it does NOT). 3) Dealership tells me that there are NO parts available in the United States! 4) Dealership tells me that there are over 300 orders a head of mine for AC Compressors. This tells me that this is a KNOW FAILURE! 5) Dealership states that even if he gets my part prioritized (as my car is non-drive able) that I can't expect to be back on the road until at least the end of June.   Oh yeah, let me mention that my battery cables have melted due to this problem.   I'm going to report this to NHTSA and find any other forum that I can to air my complaints. I can NOT afford a repair that will cost over $2,000 for a vehicle that is just over 2 years old, especially when I'm learning that this is a KNOW FAILURE. Replies to this message: wwest (Jun 16, 2009 8:48 am) sdbobo619 (Jun 16, 2009 11:38 am) theblackscotty (Jun 17, 2009 8:21 am) huyenie (Jun 26, 2009 7:46 am)
#93 of 147 Re: AC Compressor [theblackscotty] by wwest Jun 16, 2009 (8:48 am)
Replying to: theblackscotty (Jun 16, 2009 3:35 am) "..battery cables melted...."   MELTED...??   Those are pretty damn healthy cables.   The ONLY time I have seen that happen was with the ignition key stuck in the "start" position keeping the starter engaged with the engine running. The starter, accordingly, acted as an engine driven generator and attempted to charge the battery to an "infinite" voltage.   Melted the insulation off of the battery cables and the ground wire burned open.   I can think of NO other reason for melted battery cables, not even a "runaway" voltage regulator.
#94 of 147 Re: AC Compressor [theblackscotty] by sdbobo619 Jun 16, 2009 (11:38 am)
Replying to: theblackscotty (Jun 16, 2009 3:35 am) You need to call the mazda service center (1-800) and tell them you are not paying 1400.00 they will split the bill with you at least. And everyone needs to report to NHTSA on their website. Maybe someone should start a class action Replies to this message: theblackscotty (Jun 17, 2009 8:21 am)
#95 of 147 Re: AC Compressor [sdbobo619] by theblackscotty Jun 17, 2009 (8:21 am)
Replying to: sdbobo619 (Jun 16, 2009 11:38 am) Drove from Detroit to Fort Wayne, Indiana (3 hour drive) to speak directly with service adviser and return rental car as I can't afford to keep this. I was informed that the battery cable is part of a wiring harness, and isn't as simple as a battery cable as I know it. It appears that the part has some sort of resistor part (like a fuse) that broke in two. I took pictures in case anyone wants to see this. The serpentine belt had threads holding it together and it would have broken within a short amount of time. Was told that my part has been "prioritized" and that it should arrive at the port on or around June 29th. Not sure how long it will take before it gets to the dealership.   Good news is that the Mazda rep has agreed to pay for 75% of the cost of the repair (includes new O2 sensor, serpentine belt, AC compressor, and now a complete wiring harness/battery cable (dealership was originally going to repair this). I'm still not happy that I will have to pay up to $680, but this is better than the $2,000 originally quoted.   Plan to file complaints with NHTSA later today as I see this as a potential "thermal event," also known as a fire. If the serpentine belt would have broke, I would have been stranded on the freeway with two other adults and a dog. Luckily, I had pulled into a rest area, so we were all safe.   It's obvious that this is a common problem with the 2007 CX-7 as there are numerous complaints already on NHTSA's website.
#96 of 147 Re: Have the AirCon issues been sorted now? [wwest] by runnernic Jun 23, 2009 (2:36 pm)
Replying to: wwest (Jun 03, 2009 12:19 pm) thanks so much... it's just ridiculous and they keep telling me o well there's nothing we can do about it!!! i'm so fustrated.. i practically live at the freakin dealership!

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