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Mazda3 Climate Control Questions

155 messages,  Last post on Sep 24, 2009 at 7:30 AM

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What is this discussion about? Mazda MAZDA3, Mazda MAZDASPEED MAZDA3, Heating / Cooling, Hatchback, Sedan

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#134 of 155 Re: Black interior part of the issue? [ex_tdier] by stallionre May 06, 2007 (5:17 pm)
Replying to: ex_tdier (May 06, 2007 12:08 pm) Yup, I just check the sensor and it is right there. Good eye. By the way, a windsheild cost $900.00 for the Mazda 3 GT, since it has all these sensors made on the glass. OUCH!!!
#135 of 155 Compressor runs even when heat is on? by rcwitty Oct 26, 2007 (9:47 am)
I have a 2007 Mazda3 S and whenever I turn the heat on or the a/c on, I can hear something like a compressor turn on. It rattles and hums for a few seconds and then turns off. This cycle repeats itself over and over every few seconds as long as the air is flowing. If I turn the knob back to zero (effectively stopping the heat from flowing) the sound stops. Is this the compressor? and if so, should it be running when the heat is on?   Thanks Replies to this message: pf_flyer (Oct 26, 2007 9:56 am) tomkozski (Oct 26, 2007 1:41 pm) rcwitty (Oct 30, 2007 11:19 am) pf_flyer (Oct 30, 2007 11:28 am) daisyhazel (May 05, 2008 9:52 am)
#136 of 155 Re: Compressor runs even when heat is on? [rcwitty] by pf_flyer HOST Oct 26, 2007 (9:56 am)
Replying to: rcwitty (Oct 26, 2007 9:47 am) That SOUNDS like an AC compressor starting up, but not being a 3 owner, I can't go out to mine and duplicate the noise. In most new cars, the AC compressor is on when you're on the defrost setting. You didn't mention whethere or not this is happening on defrost, so I thought I'd ask.   The fact that it cylces on and off doesn't sound right. I get the start up noise of the compressor when I first start up my heating/cooling system, but just that first time, not over and over again.   That part sounds like you might want to have your service guy check it out.   It might turn out that all this is normal, or they will say it's normal and you just happen to be focused on it.   Any 3 owners out there experiencing something similar?
#137 of 155 Re: Compressor runs even when heat is on? [rcwitty] by tomkozski Oct 26, 2007 (1:41 pm)
Replying to: rcwitty (Oct 26, 2007 9:47 am) The compressor cycles on and off when the a/c is on. It doesn't stay on the whole time. Also, the a/c (the compressor) will turn on automatically when you select the floor setting or beyond (like when you need to defrost/defog the front windshield), even if the temp is set to the hottest setting, as long as it is above 32F (0C) outside. This part is explained in the owner's manual. So, basically, what you're hearing is normal. Replies to this message: rcwitty (Oct 30, 2007 11:19 am) pf_flyer (Oct 30, 2007 11:28 am) daisyhazel (May 05, 2008 9:52 am)
#138 of 155 Re: Compressor runs even when heat is on? [tomkozski] by rcwitty Oct 30, 2007 (11:19 am)
Replying to: tomkozski (Oct 26, 2007 1:41 pm) Thanks for the response. I did see something about this in the manual, but the sounds is quite loud. It also makes my car shake a bit when it turns off. What is that about? Replies to this message: pf_flyer (Oct 30, 2007 11:28 am)
#139 of 155 Re: Compressor runs even when heat is on? [rcwitty] by pf_flyer HOST Oct 30, 2007 (11:28 am)
Replying to: rcwitty (Oct 30, 2007 11:19 am) AC compressors can make quite a bit of noise when they cycle on or off. The compressor in my refrigerator sacres me sometimes   The Mazda Club Chat is on tonight. The chat room opens at 8:45PM ET Hope to see YOU there! Check out the schedule
#140 of 155 Start up grind by carrie8 Nov 19, 2007 (8:43 am)
My daughter is on the verge of an 05 Mazda3 she's fallen in love with. I'm hesitant because this particular car has a kind of high pitched grinding sound when she starts it. It stops in a few seconds, but it sounds metal on metal. What is it? Replies to this message: autonomous (Nov 19, 2007 12:41 pm)
#141 of 155 Re: Start up grind [carrie8] by autonomous Nov 19, 2007 (12:41 pm)
Replying to: carrie8 (Nov 19, 2007 8:43 am) high pitched grinding sound when she starts it Manual or automatic?
#142 of 155 Installing a 2007 Mazda3 Automatic Climate Control by dbeepath Nov 27, 2007 (8:34 am)
Hi Everyone,   Does anyone know if it is possible to change the manual climate control on a 2007 Mazda 3 to an automatic climate control unit? Replies to this message: gordonwd (Nov 28, 2007 9:03 am)
#143 of 155 Re: Installing a 2007 Mazda3 Automatic Climate Control [dbeepath] by gordonwd Nov 28, 2007 (9:03 am)
Replying to: dbeepath (Nov 27, 2007 8:34 am) Almost certainly not. Auto climate systems use a bunch of external and internal sensors -- even one to detect sunlight through the glass -- to operate and a car without auto climate would not have these sensors and the extra wiring, etc. Then you'd also have to change the panel with all the control knobs since those are different for the auto-climate too, not to mention the module that has the control logic in it.

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