Stopping that incessant rattle from the rear CX-5 hatch

Spot on AZjoeD
Heard a rattle a couple of weeks ago got worse
Even louder checked this forum removed plastic inserts nuts dropped off unbelievable
The nuts must have been ratting up against the steel sat inside the inserts
Quick fix loctite the nuts tighten back up
Cheers AZjoeD
 
I have spent a lot of time chasing this noise down. I spent a lot of time playing around with the tailgate, but that wasn't the problem.
They say a picture is worth a thousand words. So here are 4000...


https://photos.app.goo.gl/baDHIUGdn3aO85U23

https://photos.app.goo.gl/GlZg1KZbVrStnwT33

https://photos.app.goo.gl/BPJj8p3OD41lQiqr2

https://photos.app.goo.gl/hJHgvXWJg9B4vAyw2

Just tighten up these two nuts and rest easy.


Finally got around to searching around for an answer to this rattling noise, and it looks like I let this get a little too severe before addressing the problem. The nuts under these two black caps are completely gone. Yesterday when closing my lift gate, I heard one fall through the body of the tailgate. I pulled off the plastic cover on the inside of the tailgate to check the other two to make sure my spoiler is still there, and they look secure, so I'm okay temporarily I think. Does anyone know the specific part to replace the two nuts under the black caps? And secondly, how the hell do I get the other two nuts that fell off out of the inside of the tailgate?! Thanks for any help.
 
Hi could you please elaborate further, i have this annoying rattle for 3 months now that i could not locate.

Fold your seats down and drive. See if noise is still there. If it is gone with folded seats, it is likely the clamp that holds seats in place. I had to use a piece of rag to make it tighter that there is no play which made the noise. It was the middle one in my case.
 
My dealer fixed this exact issue. In my case the rear wing was wobbly. Also my rear 2016.5 center windshield mirror was wobbly too. They said its tight - but still tightened it.
 
Thanks for this... fixed my issue

I have spent a lot of time chasing this noise down. I spent a lot of time playing around with the tailgate, but that wasn't the problem.
They say a picture is worth a thousand words. So here are 4000...


https://photos.app.goo.gl/baDHIUGdn3aO85U23

https://photos.app.goo.gl/GlZg1KZbVrStnwT33

https://photos.app.goo.gl/BPJj8p3OD41lQiqr2

https://photos.app.goo.gl/hJHgvXWJg9B4vAyw2

Just tighten up these two nuts and rest easy.

I just went to fix my somewhat loose wing and all 4 of the nuts were off and located inside the rear door plastic trim. Crazy!
 
I just went to fix my somewhat loose wing and all 4 of the nuts were off and located inside the rear door plastic trim. Crazy!

Inside of the door plastic trim? Can you describe the area to look? I*m gonna have to check our CX5, because we get a rear rattle from the back like described in this thread... so I just want to be prepared on where to search for missing nuts.... (LOL - that just doesn*t sound right)...
 
It is the plastic cover, that covers the inner side of the rear hatch. Most likely, they fell all the way to the bottom of the door.
 
I have spent a lot of time chasing this noise down. I spent a lot of time playing around with the tailgate, but that wasn't the problem.
They say a picture is worth a thousand words. So here are 4000...


https://photos.app.goo.gl/baDHIUGdn3aO85U23

https://photos.app.goo.gl/GlZg1KZbVrStnwT33

https://photos.app.goo.gl/BPJj8p3OD41lQiqr2

https://photos.app.goo.gl/hJHgvXWJg9B4vAyw2

Just tighten up these two nuts and rest easy.

I registered for this forum just to say THANK YOU for this!
 
Good Thread! I found and tightened the 2 outer nuts with Locktite some time ago, but was unaware of the inner 2. Just found one finger tight and the other laying on the cover trim. Added Locktite and tightened both. We'll see if it worked in a few minutes.

Sat. 9/24. That worked! No more rattles or buzzes!
 
Last edited:
I registered for this forum just to say THANK YOU for this!

Wanted to follow up here in case it's useful for someone else. I followed the pictures from this thread and tightened the nuts in the lift gate. They were very loose, but doing so ended up not making the rattle go away. After testing several ideas found online with no success, I finally discovered that the rattle was primarily coming from the car jack next to the spare tire under the rear cargo floor! It was rattling inside the styrofoam casing.
 
final update from the life and times of spanky's car rattle:

IT'S FIXED.
Turns out it was the vertical side fins that cover the sides of the spoiler that connect to the back windshield. The plastic coverings were loose and rattling. New fins installed and rattle is gone. Immeasurable relief.
 
It's fixed for me too. I found a YouTube video 30 seconds long on how to remove the plastic trim from the liftgate door. 1 inside screw had fallen out and both the screw and metal part were vibrating. Thanks mazdas247 and members comments
 
It's fixed for me too. I found a YouTube video 30 seconds long on how to remove the plastic trim from the liftgate door. 1 inside screw had fallen out and both the screw and metal part were vibrating. Thanks mazdas247 and members comments
Can you post a link to that video please? Thanks.
 
final update from the life and times of spanky's car rattle:

IT'S FIXED.
Turns out it was the vertical side fins that cover the sides of the spoiler that connect to the back windshield. The plastic coverings were loose and rattling. New fins installed and rattle is gone. Immeasurable relief.
I'm dealing with this same issue. Do you happen to know the part number for the fins?
 
I've had this rattle for years. I had already remedied the nuts working themselves loose that hold the rear spoiler on. I used threadlocker and that fixed that issue.

But I still had another rattle that kept getting worse and worse. Banging on the spoiler revealed that those black plastic fins that @spanky was dealing with were the culprit. Found this video that shows how to remove the bottom half to allow you to use 3M VHB tape on the little tab to essentially act as an adhesive and insulator to quiet the noise. The car sounds quiet as ever inside now.

 
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