Mazda 6 Forums banner

1 - 20 of 25 Posts

·
Registered
Joined
·
6 Posts
Discussion Starter #1
While I knew full well that my vehicle ('16 Mazda 6) had been criticized for having a noisy cabin when I bought it, I never really spent much time thinking about it - and it hasn't bothered me much... until today. My dealer gave me a new '17 (maybe '18?) CX-5 as a loaner and it's a-maz-ingly quiet in comparison. It actually feels like it's at the high end of the economy vehicle spectrum, whereas mine is somewhere in no-mans land.

I realize we're comparing apples and pears here since I drive a normal sedan but my understanding is that the newer 6's are also quieter.

I also know there was a TSB for the '14s and '15s.

With all that said, does anyone know specifically what engineering details are different between the newer models and the older ones? Specifically, I'm curious to know if I can modify the cabin of my 6 to sound like a 17 or 18?
 

·
Super Moderator
Joined
·
16,742 Posts
With all that said, does anyone know specifically what engineering details are different between the newer models and the older ones? Specifically, I'm curious to know if I can modify the cabin of my 6 to sound like a 17 or 18?
The original problem with the cabin noise was due to the plastic clips which held in the rubber seal around the doors. The seal would tear and detach at the clips and there was no way to fix it besides pulling it all off and replacing both it (the seal) and the clips which had a much larger radius.

As for sound dampening your car, check this out: http://forum.mazda6club.com/3rd-gen/281729-how-i-fixed-our-3rd-gen-road-noise-issue.html
 

·
Registered
Joined
·
6 Posts
Discussion Starter #3
Hm. Yeah. I don't think anything has torn. The noise hasn't gotten any worse, it's just omnipresent for backseat riders. Perhaps someday I'll try to tackle the road noise, but really my issue is with the wind.
 

·
Super Moderator
Joined
·
16,742 Posts
Hm. Yeah. I don't think anything has torn. The noise hasn't gotten any worse, it's just omnipresent for backseat riders. Perhaps someday I'll try to tackle the road noise, but really my issue is with the wind.
Unfortunately, from people's experience, if you take it to a stealership they won't do anything unless it's really bad wind noise.

I may be mis-remembering this, but I thought there was also something to do with the B pillar and the snap-on piano-black plastic trim pieces....but I can't find it.

(BTW, those are held on by 3 - 4 clips and a whole HEAPING of 3M tape - trust me, I removed them once and won't ever try again) :)
 

·
Registered
Joined
·
46 Posts
I have an early 2014 and had these window seals replaced under the TSB early on and really, it only made a marginal difference in noise level regardless. I received a recall notice just the other day for the window trim pieces having to be "reinforced" as they tend to break off and expose sharp edges for some folks (I have not experienced this personally but plan to bring it in anyway since I also have the rear brake caliper recall to deal with at the same time). I have heard that the 2016-2018 models are better (quieter) as far as interior noise goes and added more noise insulation to some areas (wheel wells in particular). The noise doesn't bother me at all in city driving but is noticeable when driving on the highway if you're sensitive to that kind of thing.
 

·
Registered
Joined
·
44 Posts
Did anyone ever tried beefing up the window seals? There are some videos on youtube for Accord 2013-15 where people used foam + 3M tape and are claiming it made a lot of difference. Mazda6 seems to suffer a similar problem and it sounds like air is leaking between the windows
 

·
Registered
Joined
·
26 Posts
Did anyone ever tried beefing up the window seals? There are some videos on youtube for Accord 2013-15 where people used foam + 3M tape and are claiming it made a lot of difference. Mazda6 seems to suffer a similar problem and it sounds like air is leaking between the windows
As luck would have it I drove by a Mazda dealership today. No one had heard of noise complaints! However there is a TSB, No. 09-024/18 covering 2014-2016 and some 2017 models. Mazda is only covering under the limited new vehicle warranty which is 3/36k.

"Some vehicles may exhibit wind noise at rear door quarter glass when driven at high speed. This is caused by air leakage from the gap between rear sash molding, rear door glass run channel, rear door glass guide, and rear door quarter glass guide.
Replace the rear door quarter glass guide, rear door glass guide, and the rar door glass run channel at affected side(s) with modified ones on MGSS (REAR DOOR QUARTER GLASS REMOVAL/INSTALLATION)."

Parts: :
GHK1-72-651E is RH rear door quarter glass guide
GHK1-73-6515 is LH
GHK1-72-602B is rear door glass guide
GRT6-72-605A is RH rear door glass run channel
GRT6-73-605A is LH.

I was quoted 193.15 for all part before tax. TSB labor for one door .05 for two .08 hours.
 

·
Registered
Joined
·
26 Posts
I confirmed the loudest noise is from the area of the TSB. I think there might be some from the pillars also, but it's hard to tell with the back quarter glass area leaking like a sieve. I ordered the parts online for about $140.00. Will install as soon as they get here and re-evaluate.
 

·
Registered
Joined
·
44 Posts
"This is caused by air leakage from the gap between rear sash molding, rear door glass run channel, rear door glass guide, and rear door quarter glass guide.
Ill try taping up that area and see if that really the cause.
My LH door is fully quite. RH has the leaking air problem. My car has the original mazda TSB done. I did not notice any difference whatsoever after the original TSB.
 

·
Registered
Joined
·
571 Posts
Thx; I had found it there... but when you go to the "more info" hyperlink they want your money... Do you have a pdf of the full TSB... showing the parts, the "How To", etc.?
 

·
Registered
Joined
·
26 Posts

Attachments

·
Registered
Joined
·
571 Posts
Thx Cheesehead; that's kind of you to do that for me. I have a '17 Sport... and I want to improve the quietness. I find that despite having very few km's on my 17" Yokohama Advan's (stock tire for the Sport and the Cdn-spec GS / Touring)... they really telegraph the pavement texture thru to the cabin. I will be using Tickerguy's methods of very strategic self-adhesive high mass vinyl applications and also strategic Mass Loaded (MLV) Vinyl "curtains" to combat some of this. This and (unrelated) the use of an OVT tune with ~25% throttle-mapping to address what I'm not happy with on the car. Work in progress. 'Wish I did not have to do this.... but then i also consider what i paid for the car and the many many miles i expect to get out of it. Mazda does have prowess in certain areas of Engineering, I figure.
 

·
Registered
Joined
·
571 Posts
When I read the docs, I see that my '17 Sport was built before the (nominally) Dec 2017 timing. I will have to investigate further, 'cause i) this TSB may not apply to my Canadian car (meaning they may not honour it for the Canadian market); and ii) I guess some but not all cars may exhibit symptoms. Need to have one of my daughters - or my wife - ride in the back while I drive on the highway... and listen.
 

·
Registered
Joined
·
26 Posts
When I read the docs, I see that my '17 Sport was built before the (nominally) Dec 2017 timing. I will have to investigate further, 'cause i) this TSB may not apply to my Canadian car (meaning they may not honour it for the Canadian market); and ii) I guess some but not all cars may exhibit symptoms. Need to have one of my daughters - or my wife - ride in the back while I drive on the highway... and listen.
If you're under 36k you should be covered by warranty if Canada is covered.

I rode in the back while my daughter drove and the noise was so loud from this area I couldn't tell if there were any other weak points, though I suspect pillars. I am going to put some cheap u seal in doors as I don't plan on keeping it for more than 2-3 years.
 

·
Registered
Joined
·
941 Posts
If you're under 36k you should be covered by warranty if Canada is covered.

I rode in the back while my daughter drove and the noise was so loud from this area I couldn't tell if there were any other weak points, though I suspect pillars. I am going to put some cheap u seal in doors as I don't plan on keeping it for more than 2-3 years.

Canadian warranties are completely different and Canadian recalls/TSB's are in no way tied to the ones in America. Although I should say that Canada protects the consumer from themselves better as far as cars up here. We tend to have more aggressive recall campaigns as well as very high dealer voluntary compliance. I brought my nasty old 04 6s to the dealer 2 years ago for the airbag recall and they found 2 other recalls that were not done and did those as well. I am the 3rd owner and my car had at least 250K KM on it so yeah.


People really need to use their brains when buying/financing a car. The laws are not there to help you when your buyer's remorse kicks in or you financed too much money and now you're mad. And to keep to my need to kick people when they are down, the OP is a perfect example of this. As well, blaming dealerships in any way is foolish to the core. They sell them. That's it. They are not corporate representatives. Those people work for "corporate". You have to call Mazda America/Canada/wherever-you-live if you have a gripe. I don't blame dealers for shutting people down when the first words out of their mouth usually is something like: "I paid $xxxxx for my car and you have to be my personal slave FOR LIFE!!!!!!!". No, they will tell you to FO instead.
 

·
Registered
Joined
·
571 Posts
Mebe cut some strips of paper and one at a time place them in door jamb then close door and note whether there is drag when pulling. Now you might temporarily afix with a single piece of tape each... then have daughter drive with you in back. Its possible that at speed the vacuum created by airflow pulls door or part of window outwards... the it'll be apparent when you release ea. piece of tape and strip of paper disappears or is easier than others to pull back into the car. I don't know... but some sleuthing is necessary here, it appears. Don't be discouraged; you can beat it!
 

·
Registered
Joined
·
26 Posts
Mebe cut some strips of paper and one at a time place them in door jamb then close door and note whether there is drag when pulling. Now you might temporarily afix with a single piece of tape each... then have daughter drive with you in back. Its possible that at speed the vacuum created by airflow pulls door or part of window outwards... the it'll be apparent when you release ea. piece of tape and strip of paper disappears or is easier than others to pull back into the car. I don't know... but some sleuthing is necessary here, it appears. Don't be discouraged; you can beat it!
I need to tape it. But I can hear leakage on top of rear door window, bottom of quarter glass, and the side pillar. It is annoying af!! My girl's cheap 2017 Hyundai Accent is quieter!

I originally planned to only keep it two years. Now I am dead set on it, if not sooner. Too noisy, can't update nav, and I am only getting 31.4 MPG according to on board computer, and I drive almost exclusively highway. Which is sad i had a 626 I loved.

IDK how much I really want to spend. I just dropped near $200 and numerous hours adjusting for something that didn't work. I have seen some youtubers put additional outer seals, maybe I'll try that. We'll see.

Thanks for the encouragement!
 
1 - 20 of 25 Posts
About this Discussion
24 Replies
9 Participants
mach1219
Mazda 6 Forums
Mazda6club.com is a forum dedicated to the Mazda6 / Atenza. Come and discuss reliability, performance, modifications, and more!
Full Forum Listing
Top