So, have a different rattle (maybe) than most here talk about.

Details:
1)Mainly occurs on road to overpass/bridge transitions, especially rough ones, but can be triggered in other instances.
2) Sounds like it comes from the middle of the console area or glovebox area like many (most?) others
3) Is not just a pop or squeak or clunk. This has an almost spring-like metallic sound. In other words, it reverberates for half a second or something. This is why I lean away from the typical hood latch issue
4) Cannot replicate except when hitting specific road transitions
5) Seems to occur more in colder weather (sub-45 degrees)
6) Here's the part that makes it a little scary- car has had dash replaced by dealership under warranty. The replacement occurred at less than 1,000 miles, and the car now has about 5,800. I have no idea if the sound existed prior to the replacement.

Anyone had/have this one and found a solution? I'd post video but I find they never help in these cases, AND I can only replicate it in certain scenarios that don't seem repeatable.

Thanks in advance. The rest of the car is silent after some self-installed sound deadening, so hoping to get this right and finished up.

 

I’d start by checking the tightness of the bolts that hold the cross braces.

 

Are we speaking of the four (4) in the door jams? As shown in the image below? Or others?

 

Cross braces underhood and the undercar ones if a vert. Otherwise, it would be 'take it apart and re-test' until you find it, noises like that are tough.

 

I copied Graybeardnw’s amusing photo from another thread. Cross braces are circled.

 

Car is a hard top, will check but not familiar with those braces on mine.

 

My fear is "take apart and retest" is going to end up with the dash out. The rattle was present with the glovebox out, the knee bolster out, and most of the interior trim in the console area other than the screen and HVAC module.

Was hopeful there's an obvious answer someone has experienced haha.

 

I would get an occasional clunk when the chassis twisted, e.g. in and out of driveway, and cinching those bolts up fixed it. It seems to be a pretty common issue, at least on the earlier cars.

 

Interesting. I've also been getting another clunk like what you're describing, seems related to twisting and low-speed braking.

 

Have you tried a road test with a passenger searching for the noise while you drive the car, or the other way around? It is hard to conduct an exhaustive search for the noise as you drive.

 

That's coming next. As I mentioned, it's tough to replicate, just certain overpasses/bridge transitions and even then I think it's both dependent on conditions and speed. Which isn't to say it doesn't happen throughout the weather spectrum, but as an example, I know an overpass like 40 minutes from my house on my commute that causes it, but only during cooler weather.

I did find a spot where they're doing work on the road and ground out the lines rather than paint over them and I think I can replicate it there. It's like 1/8 mile and when I drove over it earlier, it was doing it though not with a ton of intensity.

Also, wondering if a tire change might diminish it. I hate what's on it anyway, thinking about doing all-season performance Continentals like I had on my RS6 winter wheels. They were very quiet compared to the stock Pirellis on that car.

 

Here's a link to a dash-related noise investigation...

You did say you investigated the hood latch possibility, but for review, find my post #5 in this link and follow

https://www.jaguarforums.com/forum/f...rattle-198680/

I had been plagued with this noise for at least two years.... seemingly emanating from the center vent unit, the glove box, the forward part of the right side passenger door, etc. When someone was seated in that passenger seat, the noise was more noticeable. I stuffed foam padding up under the door card among other attempted fixes.

When I first read Tietjens cure, I was skeptical... "it can't be that easy" I thought... well it was and tightening both sides eradicated the noise. Why the noise was more noticeable when the passenger seat was occupied then made some sense... the additional weight changed the geometry of that right side/front of the car.

 

So, I went and rechecked the latches. They had some little play in them but the play was even side-to-side, so I always assumed a slight amount was normal. Are they supposed to have no play in them at all?

 

Try tightening the latches one or two threads at a time, each side.

 

Tightened tha latches as I mentioned. On test drive, am still able to replicate the sound.

Had a passenger in the car tonight. To him, sounds like it's coming from my side. To me, sounds like it's more his side or center console.

I downloaded a tone generator, can't replicate it with that cranked up and playing out of the speakers. I can replicate it driving on a brick street in my town, and was able to replicate it when making lateral (lane change) moves over bridge expansion joints.

I cannot tap or beat on any surfaces in the car and replicate it. It's driving me nuts at this point, since it can be heard through music due to its resonant nature.

 

Coming back to this, the sound is most like the 4th sound on this very short clip