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Thread: 20,000 Miles On My 2015 Mazda 6 - List of Problems So Far

  1. #16
    Registered Member torquelover's Avatar

    2015 Soul Red 6 Sport Auto 2016 Accord EX Auto

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    Feb 2012
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    Chicago Suburbs
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    362
    20k miles so far. No problems yet, but I'll post some things I don't like about the car in no particular order:

    Not enough power.
    Coarse engine.
    Okay midrange, no top end power.
    Throttle response varies greatly from stoplight to stoplight. Almost like Forest Gump and the box of chocolates anytime you change throttle position.
    Auto trans in manual mode will downshift at wot.
    Washer fluid dribbles out on agressively turns.
    Stock Yokos getting loud.
    Not enough power.
    Car is loud. Especially so when I ride in anyone else's vehicle then get back in mine.
    Paint quality is terrible. Not Honda bad, but close.
    Brakes too soft.
    Too easy to end up with max AC when lowering temp.

    That's it for now.

  2. #17
    Registered Member

    Mazda6 GT, MX5 PRHT

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    May 2015
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    Upstate, SC
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    140
    I've got 13k miles on my 2016 GT. I don't think the car is loud on the highway. Seems to have plenty of power when I need to pass someone. More power is always nice but I like the fuel economy. My throttle response seems great. My paint looks factory new still. No orange peel. Brake are great. GPS unit froze twice but a firmware update downloaded by the dealer solved that. My only issue has been the cruise control. Sometimes the buttons don't do the right function. What I mean is to lower the cruise speed I hit that button and it increases or I'll hit cancel and it increases. The bitch of this is it only happens about 20% of the time and it seems like it's always working fine when I want to take it to the dealer. I'm waiting for it to completely fail but it may never do that.

  3. #18
    Registered Member torquelover's Avatar

    2015 Soul Red 6 Sport Auto 2016 Accord EX Auto

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    Feb 2012
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    Chicago Suburbs
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    362
    I had a couple 2016 loaners. The trans seems different in regular mode in those compared to my 2015. They were much more reponsive. Sport mode was perfect for my tastes.

    Once I'm on the throttle hard the car does move well compared to other NA 4 bangers in its class.

    My cruise is great. Reliable and accurate. It was hard going back and forth between this and the 5 because the cruise/phone buttons were on opposite sides. Lots of accidental hang ups and brief spooky periods thinking the cruise won't disengage, lol.

    Really never had anything wrong with the car aside from an oil leak so that's good.

  4. #19
    Registered Member

    2014 Mazda6 GT

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    Aug 2016
    Location
    Tempe, AZ
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    46
    Just picked up a 2014 M6 @ 45K Miles. It runs great so far, only issues are cosmestic from the careless previous owner...but I got it for a steal so I can't complain!!!

  5. #20
    Registered Member

    Mazda6 GT, MX5 PRHT

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    May 2015
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    Upstate, SC
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    140
    Quote Originally Posted by 50Joe View Post
    I've got 13k miles on my 2016 GT. I don't think the car is loud on the highway. Seems to have plenty of power when I need to pass someone. More power is always nice but I like the fuel economy. My throttle response seems great. My paint looks factory new still. No orange peel. Brake are great. GPS unit froze twice but a firmware update downloaded by the dealer solved that. My only issue has been the cruise control. Sometimes the buttons don't do the right function. What I mean is to lower the cruise speed I hit that button and it increases or I'll hit cancel and it increases. The bitch of this is it only happens about 20% of the time and it seems like it's always working fine when I want to take it to the dealer. I'm waiting for it to completely fail but it may never do that.
    I reported in here about my cruise control. It's now worked perfectly for the last 2+ weeks. I just don't get this. I figured it would worsen over time, not self heal itself.

  6. #21
    Registered Member

    Mazda6 GT, MX5 PRHT

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    May 2015
    Location
    Upstate, SC
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    140
    Cruise control still working well. Still makes no logical sense that it seems to have fixed itself.

  7. #22
    Registered Member

    Mazda6 GT, MX5 PRHT

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    May 2015
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    Upstate, SC
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    140
    25k miles. No issues. The new features in the 2018 6 are cool but I see no reason to upgrade.

  8. #23
    Registered Member

    2010 CX-9

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    Sep 2016
    Location
    Fort Wayne, IN
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    100
    23k on my Ď16 and only issue I will eventually take it in for is an intermittent overly sensitive passenger weight sensor that tells me to buckle the passenger seat when I put my phone on it.

    Iím kind of regretting buying the manual trans but at least the slushbox performs very well. Definitely my favorite auto trans so far.

  9. #24
    Registered Member

    17 Mazda 6 GT

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    Apr 2017
    Location
    Ontario, Canada
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    338
    Too early to report on long term operations, but I just completed my first long drive in my 2017.
    I bought it as a highway cruiser to take to Florida in the winter.
    I left Ottawa (Canada) at the end of January with just over 400 miles on the odo.
    Arrived in Sarasota a few days later with +2100 miles on it.
    Drove flawlessly the whole way down.
    Averaged 37.2 mpg on the interstates (at about 70-75 mph).
    I'll post in more detail about what I thought of it all, but for now, it's been great.
    The only negative thing I will say at the moment is that I'm not a big fan of the 19" Dunlop's.
    I think they'll get changed out sooner than later.

  10. #25
    Banned GJ-Molestor's Avatar

    2011 BMW 528i, 2015 Mazda 6, 1995 Nissan Maxima Manual

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    Apr 2017
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    Toronto
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    1,806
    Got about 60k miles on my 2015 model. Nothing has went wrong with it. Needs new brakes soon but that’s about it...

    Some things others have mentioned on this thread:

    -stoplight Lag. Very likely due to using 87 octane fuel.
    -paint quality. Yes, it’s horrible. You must touch up scratches if you see metal. Do not follow cars closely or you will get stone chips. Be very careful when washing the car
    -power. No complaints there... the car feels adequate in terms of output. Not tons of power, but the 2.5L doesn’t lack either. Never had a problem with passing or merging onto the highway etc. Transmission makes the most of the available torque
    -winter traction is very good. As long as you got winter tires while driving in the winter, you won’t have any issues.

    Reliability so far has been good

  11. #26
    Registered Member

    2015 Mazda6 GT

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    Mar 2017
    Location
    South San Francisco, CA
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    31
    Stop light lag from using 87? has 89/91 been tested to actually make a difference?

    Got my '15 GT a year ago with 18K on the clock, now its at 36K. Besides oil changes and new front & rear rotors & pads its been going strong. Only mods to it are 2 8" DC Audio M3 in a TL Box with sound deadening done to the trunk lid and rear deck underside and also a Pioneer AVH2300 headunit put in. The stock Mazda radio is garbage.

    At very low speeds, like when I'm hitting the brakes to stop the car when parking I'll get a loud screeching noise from the rear driver side. Its annoying but brakes are excellent. Will have to have it looked at. Also, need to get the emergency parking brake recall done, my local Mazda doesn't have the parts yet.

    One thing I noticed yesterday when driving in our current Bay Area "storm", it was super windy and the car was getting pushed around very easy. Maybe I'm just not used to such windy conditions. Tires are appear to be fine.

  12. #27
    Registered Member Luckdad's Avatar

    2018 CX-5 Touring

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    Mar 2018
    Location
    CA
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    15
    I have a 2010 Mazda6. Never had any problems of note. This gave me confidence to get another Mazda when replacing my 2002 Acura TL, so I now also have a 2018 CX-5. Mazdas are seriously underappreciated vehicles.

  13. #28
    Registered Member

    17 Mazda 6 GT

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    Apr 2017
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    Ontario, Canada
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    Quote Originally Posted by Baydestrian650 View Post
    Stop light lag from using 87? has 89/91 been tested to actually make a difference?
    Have only hit just over 3,000 miles, but I have tried all different manners of gas blends as a test.
    87 octane with 10% ethanol, to 91 octane ethanol free, and mid range blends as well.
    Results: didn't notice one iota of difference. Car ran the same on all blends.

    Maybe octane makes a difference with turbo engines, but not to the NA engine.

    FYI, I have a 2002 Pathfinder that's supposed to use premium gas according to the owners manual.
    Mileage sucks on that thing, so I started running cheaper regular 87 gas in it many years ago.
    Made absolutely no difference in how it ran or what my mpg's were. What a scam.

  14. #29
    Registered Member

    2010 CX-9

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    Sep 2016
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    Fort Wayne, IN
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    100
    I have a contrasting opinion. I now run exclusively 93 octane in my Ď16 Mazda 6. The biggest difference to me that I notice vs 87 octane is the power delivery on acceleration. To my carefully calibrated butt the power delivery seems much more linear with premium fuel (note: I accelerate fairly aggressively most of the time). I may be full of crap but Iím fairly certain the power delivery with 87 octane would have had me trading the vehicle in for something else already, Iím quite fickle. But Iím still in love with this car and itís actually saving me money using the 93 octane.

  15. #30
    Banned GJ-Molestor's Avatar

    2011 BMW 528i, 2015 Mazda 6, 1995 Nissan Maxima Manual

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    Quote Originally Posted by dennyd75 View Post
    I have a contrasting opinion. I now run exclusively 93 octane in my Ď16 Mazda 6. The biggest difference to me that I notice vs 87 octane is the power delivery on acceleration. To my carefully calibrated butt the power delivery seems much more linear with premium fuel (note: I accelerate fairly aggressively most of the time). I may be full of crap but Iím fairly certain the power delivery with 87 octane would have had me trading the vehicle in for something else already, Iím quite fickle. But Iím still in love with this car and itís actually saving me money using the 93 octane.
    Gas is cheap over in the states, but youíre still wasting money. My recommendation is to get an Ecu tune for your 6. That way you will get good power gains and make the full use of higher octane fuel. In the meantime, Iíd suggest looking for ethanol free fuel instead. An ethanol-free 91 octane is better than ethanol blended 93 fuel.

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