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Mazda6 Maintenance and Repair



  • mtaylor3mtaylor3 Posts: 2
    I have an 09 Mazda6i that has an intermittent rattle (more of a slapping noise) that seems to be coming from between the glovebox and the firewall. It almost always does this for a just a second after the A/C is turned on for the first time of the day, but I've also noticed it with the A/C and fan off. On occasions that it happens with the A/C and fan off, the noise only happens with the transmission in park or drive (with the car stationary), and stops immediately as soon as I shift out of park or press on the gas. Due to the intermittent nature of the noise, of course it hasn't been reproducible when I take the car in for service. I know this is not the normal soft thud of an A/C compressor coming on. Anyone else have this noise or have ideas as to what it could be? I've probed around a little in the firewall area visible with the hood up, but can't find anything loose.
  • vfontjrvfontjr Posts: 9
    I found out today what was happening with the Auto buttons for the front windows. They needed to be reprogrammed. When I took the car in to fix the bluetooth, they disconnected the battery. This caused the windows to lose their programming. The fix is to hold the auto button all the way down until the window is fully open, then hold the button all they way until the window is fully closed. This reprograms the button.

    Just went over 15,000 miles. Bought the car last October.
  • lg2207lg2207 Posts: 28
    Hi All-
    Ok, so I am officially done with my '07 M6 Wagon. Only 15k miles.... As I have mentioned I bought certified in late '07 with low mileage-------- in the last 6 months I have had the following pattern happen which no one can figure out:
    1) Late November- turn car on---------- all engine and system lights come on and stay on. Turn off engine- Turn on Engine again and CEL comes on and stays on for about a day then goes off. Bring the car to dealer- they pull codes and replace the Cat. pipe.

    2) Early March- same thing happens again. Bring to dealer, they pull codes. This time its the Transmission Control Module and the wiring harness

    3) This past week; same thing. Bring to dealer. They havent told me what (if any codes) they pulled- but they did open a case with the Mazda Tech line as this is the 3rd time this has happened- they had them try a few things but havent explained yet what ( I am going to call tomorrow)- they gave me the car back and told me they are waiting for further instructions from Mazda Tech and that they are getting the Mazda Regional Rep involved.

    I contacted Mazda myself and started a case with them- not sure if they will do anything; but would love for them to take this car back (they wont I am sure). I've got 2 more months of full warranty before just 6 year powertrain warranty kicks in. Also complained to the GM at Crystal Mazda in Greenbrook NJ- their service dept has been dilligent and top notch to this point and hope they can pull through.

    This on top of the leaky CV boots and axle replacements last September....

    Any thoughts?
    I think I may trade this baby for a certified Subaru Outback or Forrester or Nissan Rogue

  • jkobty2jkobty2 Posts: 210
    Yes I would get rid of the car, If I were you. If you are thinking Japanese go Toyota or Honda as Subaru and Nissan also seem to be having powertrain quality issues recently. Hyundai cars seem to be consistent on good quality and reliability too.
  • jkobty2jkobty2 Posts: 210
    Well I finally solved the mystery of the engine tapping sound after the car warms up when accelerating at low rpm (1200 rpm). Since this noise started happening immediately after my first oil change, I replaced the dealer installed oil with a quality oil (Valvoline 5W20), and behold, my engine is back to smooth even after it warms up, no more noticable tapping at low RPM. My theory is the crappy bulk oil being used by the dealerships (I tried 2 dealers) shears or thins out at high temp, and it is viscosity changes and is unable to provide the same lubrication to the upper engine (valvetrain). Since I do not get those noises when the oil is cold, that is the only explanation I can find. The valvoline oil seems to behave consistently well even after the car has warmed up.
    Now the question, what do I do now with this information. Mazda mechanic said Mazda would not honor warranty if I am doing my own oil changes. I am thinking of using their oil simply as an engine flush, and then draining it the moment I get back from their service shop and replace it with a quality oil. However should I be worried about any long term effects to my car since I already drove it about 10,000 kilometers on their crappy oil. Is there a way for me to prove easily their oil is bad such as an analysis by a third party that can give me written confirmation that the oil they are using is no good. Then I can take them to small claims court or something.
  • mz6greyghostmz6greyghost Posts: 1,230
    The warranty line is just that, a line. Keep all receipts of when you buy the oil and filter, and write down the dates and mileage that the oil was changed.

    As far as the oil is concerned, I've never heard it being an issue in terms of the tapping sound (unless there's no oil in the engine at all). Then again, my dealer uses Valvoline... :)
  • Our 2005 M6 seems to have the heat stuck on all the time. Now that it is hot, the AC can't keep up. It runs full blast and doesn't really cool the car. The strange thing I notice is that when it is cool outside, (50-60F) and I hit the auto climate button, then press the AC button to turn off the AC, the air coming out of the vents is warm, much warmer that ambient. I took it back for this last year, and the techs went over the AC system, as it wasn't completely full, and recharged the system. I pointed out this same heat thing at that time, they didn't address it, only played with the AC system. I still think some valve is stuck so that heat is always being added to ambient air, even when not needed. Anyone seen anything like this? Or know how ambient air is routed thru the heater?
  • mz6greyghostmz6greyghost Posts: 1,230
    I had a similar problem, and the dealer discovered a malfunctioning blend door actuator. Basically, it froze up on me, causing the outside air to be drawn in at all times, blowing warm air in mo matter what the outside or inside temperature was. This just happened two months ago, and the dealer was able to loosen the hinges to the door and lube it, and it's been working ever since. They did mention that if it happens again, the actuator would be replaced. It's a cheap part, but they also said that labor will be at least 6 hours, since they'd have to tear the dash apart to replace it.
  • sjhollonsjhollon Posts: 1
    I have an '03 4 cyl Mazda 6 that has an issue with the A/C. It will only kick-in after 15-30 minutes from when I start the car. Once it starts, it has no problem cooling the car. This is a manual A/C. Has anyone encountered this issue. I am hoping to avoid an expensive repair if at all possible. Thanks for your help.
  • mtaylor3mtaylor3 Posts: 2
    I have an '09 Mazda6i with the 5-speed auto transmission. Do any of you find this transmission to be really aggressive in downshifting when coming to a stop? Even when coming to a slow stop, when the transmission downshifts it's aggressive enough that I can feel myself shift forward in the seat slightly. The shifting seems smooth enough, and there aren't any strange noises, but this has me a little concerned. I can't remember having driven an automatic that makes me feel like the engine and transmission are doing more to stop the car than the brakes. I've also noticed that it tends to gear "hunt" a lot under light throttle at low speeds (say 20-40 mph). I'm hoping this is normal behavior for this transmission, but since I've only had one other car (out of 9) with an automatic, I don't have a lot to compare to. Do any of you share this experience, or might I need to get this checked out?
  • waggone04waggone04 Posts: 6
    I have an 04 6 waggon v-6 this happened at @ 10,000miles now 50,000miles fule pump went bad. Thats it on any problems...............
    Have them check ALL the grounding cables and re "flash" the computer. I had all the lights come on and the trans banging in and out of gear. This solved my issue. Loose ground wire I think by the passenger front tire.
    Side note this happened early in the morning with corn fields as far as the eye could see.... UFO.?
  • rishmawirishmawi Posts: 1
    I have a 2005 mazda 6 V6 with automatic transmission. Today, when I first turned on the car, and I switched to drive, I heard a weird rattling sound, which sounded like it came from underneath the car (I am not 100% sure of that). To me the noise sounded like gears grinding against each other, but I am not too sure. The sound disappeared after I accelerated, but came back after I stopped. The sound completely disappears after some driving, but it comes back if I turn off the car for a while. The car seems to drive like normal except for that weird noise.
    Any help is appreciated.
  • jimj_caljimj_cal Posts: 1
    I have a 2007 mazda6 with 54,000 miles on it. Yesterday while driving the AT light came on in the message center. The manual says this can be caused by hot tranny fluid or an electrical problem. Anyone have any similar experiences or ideas what could be wrong. It doesn't appear to be hot tranny fluid because the light reappeared this morning when I restarted the car! Thanks, JimJ :confuse:
  • slickdogslickdog Posts: 225
    Could be a loose heat shield on the exhaust, I live in the NE and one of mine rusted loose after 4 years (had this problem on all of my other cars too). They usually make rattling noise when the engine is at or near idle and sometimes sound like grinding. If that's your problem they can either be removed or banded together (if it is one which has a top and bottom half). It's an easy DIY job or your mechanic should be willing to fix it cheaply.
  • I got a 04 Mazda 6 with alotta miles lol. I don't get any air coming out for my a/c and heat so im thinking it was my Motor Blower Fan. I orders that part but when it comes in ima replace it myself. Does anyone know exactly where its located in the dash itself? Im thinkin its in the centerconsole and I been lookin all over the net and I get nothing. Must be a rare part that breaks cause autozone can't even order it.
  • samiam_68samiam_68 Posts: 775
    It's usually behind the glovebox.
  • ventureventure Central PAPosts: 446
    Did you check the fuse?

    2014 Fusion, 2013 Impreza, 2011 Forester

  • jclark5jclark5 Posts: 5
    need an answer fast PLEASEI thinking of buying a mazda6. it was dead at the dealer because someone left the dome light on. they changed the battery and it runs great but the airbag light wont go off. the said the battery dying probably caused this and can be corrected when i buy the car for free. could this be true? it has a clean carfax and is in perfect test driving it for the weekend and have to make a decision by 6 tom.
  • jeffyscottjeffyscott Posts: 3,855
    Why do you have to have to make a decision by 6? Why don't they just fix the problem before you buy?
  • I've noticed a few posting about their car not starting but i couldn't see if people had a fix for it yet. Here is my problem. I have a 2006 Mazda6 and for the past 3 years i've had it not start quite a few times. Of course i've taken it to a dealership and they can't replicate the issue nor can they resolve it. I've listed below some information regarding my problem, hopefully someone can help me out.

    - it mainly occurs on hot days when the car has been sitting for a few hours
    - the key turns, dashboard lights light up and it just cranks
    - i've had the battery, inhibitor switch and fuel pump replaced and the problem is still there
    - it's an automatic and i've tried moving the gear shift from park to neutral and back to park with no luck
    - i have to sit there and wait for 10 minutes or more and keep trying and then it will randomly start

    my car is almost to the end of the warranty and mazda canada's response to me is it's up to the discretion of the dealership whether they'll continue to try and fix this at no charge even though this problem occurred within the warranty period.
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