2016 cx-9 wheel well trim became detached

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2016 CX-9
About a week ago while driving at freeway speed, with no obstruction in the road, nor collision with any type of debris, structure or other vehicle, my passenger side - rear wheel well trim became detached. It just, simply came off without warning!!!

I brought it to a local dealer (Munday Mazda), and they were gracious enough to replace it under warranty.

They alleged that they had never heard of anything like this happening before. However, my friend's neighbor reported an identical scenario. Apparently, she found it more difficult to convince her dealership (Clear Lake). Eventually, though, I was told they conceded, and fixed her vehicle too.

Has anything like this happened to anyone else? What was your experience?
 
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2008 Mazda CX-9 Touring FWD . 2014 CX-5 GT FWD
I know you are not near me, but I have now seen 1 CX-5 on the highway this summer with a flapping rear wheel well trim piece, so you are not alone.
My own 2014 CX-5 and 2008 CX-9 have never had this happen.

Given the effort it takes to remove those pieces, (the trim has slots that slide over snapped in fasteners in the body that break when you try to remove them) I was surprised to see this myself and figured that car had been in an accident and the body shop just messed up.

I can only imagine that something was amiss during assembly on your vehicle or that there is a systemic problem at work here.
Were the fasteners still hanging on the piece, attached to the vehicle, or some combination?
 
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2016 CX-9
That's what I was thinking. Faulty fasteners, or not assembled/fastened properly. Neither I, nor anyone else I know of, at any time, had tampered with, or any reason to tamper with the trim. So, again, the only logical conclusion I can come up with is the aforementioned scenario.

The whole trim piece, including all but one fastener were completely gone. So, I'm not sure if that was the sole fastener holding/trying to hold the trim, or if that was simply the last one attached.
 
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2008 Mazda CX-9 Touring FWD . 2014 CX-5 GT FWD
So now I am thinking that trim may have been worked on as ripping those fasteners out accidentally is nearly impossible and you would have noticed the piece was loose. OTOH, if many were broken and it was being held on by one or two, then your result is likely.

It's not uncommon for damage to happen in transit and be fixed before sale. It's possible the trim was just replaced poorly. Hopefully it wont happen again.
 
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CX9 2016 AWD Grand Touring
Just happend the same to my 2016 CX-9.
I went to the local dealer and they said that it never happend to anybody else so it must be because i hit something (i know i didt). So they didnt replace anything. I cant tell you how mad i am now.
 

GJ-Molestor

Banned
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2011 BMW 528i, 2015 Mazda 6, 1995 Nissan Maxima Manual
That's what I was thinking. Faulty fasteners, or not assembled/fastened properly. Neither I, nor anyone else I know of, at any time, had tampered with, or any reason to tamper with the trim. So, again, the only logical conclusion I can come up with is the aforementioned scenario.

The whole trim piece, including all but one fastener were completely gone. So, I'm not sure if that was the sole fastener holding/trying to hold the trim, or if that was simply the last one attached.
Japanese vehicles are built to rather high standards... there is a very small chance that it fell off due to poor assembly from the factory. take a look at the plastic piece... were there any plastic fasteners missing? I have never experienced, or even heard of such a thing.
 

sm1ke

Work In Progress..
Moderator
Contributor
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Canada
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'18 CX-9 Signature
Just happend the same to my 2016 CX-9.
I went to the local dealer and they said that it never happend to anybody else so it must be because i hit something (i know i didt). So they didnt replace anything. I cant tell you how mad i am now.
Dealers like this frustrate the heck out of me. They could at least inspect the area to give their theory some weight, but instead they just make an assumption and tell you that it was your fault without trying to assist you in any capacity.
 

sm1ke

Work In Progress..
Moderator
Contributor
:
Canada
:
'18 CX-9 Signature
A few days ago, I noticed that my front two fender liner/guards started to either deform or begin to come loose. There are visible gaps that most would not notice, but when comparing to a brand new CX-9 on the dealer lot, the issue is clear. Immediately up front, the dealer agreed that this wasn't normal and ordered the parts to replace it.

There are only a couple of things I can think of. Either the dealership that did my first oil change somehow messed with the fender guards (unlikely since you don't need to touch those to do the oil change), or the guards somehow warped or came loose due to the change in weather. Anyway, parts have been ordered and will be installed as soon as they come in.

Here are pics of the gaps (same on both sides). The rears do not have this issue.


fender trim.jpg
 
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Mazda CX-9 GS-L
Digging up this old thread to add my experiences. My 2016 CX-9 body fasteners are coming off all over the place. Front under body, rear trim. Even the door seals are coming off and chrome trim by the window. Maybe its the winter weather, but i've never had this happen to any car.

Otherwise the car is a great drive, but poorly put together.
 

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