clubrcr

I need someone's help. I have a 2016 Cayenne Turbo. A couple of weeks ago, I developed a rattle in the dash, driver's side middle or maybe toward the a-pillar. I have searched the posts, as well as the internet to see if anyone else has something similar. The rattle sound like "plastic to plastic" but the weird thing is that the rattle doesn't start until the vehicle is being driven over 65mph-70mph, never at lower speeds. I had the vents out, and the bottom trim and moved everything around. I have even put more felt and cable tied a few things together just in case, I took the cover off the front tweeter to see if that was it, I even took the front wheel off and looked under the fender lining. I have done a lot of searching and tightening, but I still hear it over the mentioned speed. I have though about taking in to the dealership, but I was worried I might end up with another rattle if they started taking the dash out and such.

Yes, I could always go under the speed, but I was curious if any of you guys have had the problem.

Any help would be appreciated.

CarGuyNVA

clubrcr

I get it. My issue is replicating it for them. Plus, all they will do is put felt around the issue, or tighten a bolt. If it were something that someone had already had a problem with and I could fix quickly without the hassle of taking it, dropping it off, then having to take it back because they didn't fix it, I would be happy to do it.

991howl

if not already , try this
https://rennlist.com/forums/cayenne-...-resolved.html

wkearney99

Are you certain it's coming from inside the passenger compartment? Something speed related would seem more likely influenced by wind and/or drivetrain balance. I'd check in the engine compartment, like make sure there no debris in the cowl that might be moving around.

Does pressing on the dash or other interior door panels have any effect on the noise when it's happening?

CarGuyNVA

clubrcr

I have tried that, but it doesn't stop it. It almost sounds like it is further inside, maybe even behind the gauge cluster. I enjoy tinkering with the car and looking for the problem. I get satisfaction from finding and fixing things. I guess that is left over from my racing days.

clubrcr

I have looked at a couple of explored views of the dash pod, but it hasn't given me any insight.

michaelo

This: Mechanic Stethoscope. Have a friend drive your car while you listen in. $12 bucks at Walmart.

wkearney99

On the other thread I loved the note "please see Burke before you NPF it".

I have never seen a Cayenne's HVAC system disassembled but I recall in other vehicles that debris or broken parts loose in there could sometimes result in hard to find noises. One short-cut in diagnosing if it's AC-related would be to remove the fuses for them. They can't rattle if they're not powered.

That and there was a note about a temp sensor in the vent coming loose and making noise. Not sure if it was a Cayenne or a Panamera.

The inspection stethoscope would help to listen down into/under various dash points.

clubrcr

Great thanks,

RAudi Driver

I too have a slight rattle coming from he middle of the dash. Been to the dealer only to have them say, it's a Porsche they tend to develop squeaks and rattles over time. They did not take the time to fix it. Maybe because it was on CPO. I walked next door, to the Audi dealer, and purchased some of the felt the Audi sells to quell rattles in their marque. Going to pull off my middle dash and apply when it gets too bothering, usually in the winter when the plastic is cold.

Good luck with your search and please chime in if and when you find the issue.

Tom M

Just a reminder that sometimes squeaks and rattles may not actually be coming from where they sound like they are.

Case in point was an annoying squeak/rattle I had on the dash of our Highlander. I could actually press on the top center of the dash and make it stop completely so I knew it was coming from the center vent area behind the radio. After much testing and rework of the center vent area the noise was still present. Turns out it was actually the dash rubbing against the glass just enough to cause the noise. A bit of felt stuffed between the dash and the window killed it completely.

deilenberger

$3 at Harbor Freight, and I guarantee they are identical.

Tom M

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