Pagoda SL Group
W113 Pagoda SL Group => General Discussion => Topic started by: alpina on July 16, 2020, 21:45:18
-
I need your help. I get this random clinking noise from the rear of my car. (sounds like it is coming from behind the driver LHD) I can’t replicate this in the garage. It does not depend on speed slow or fast, going straight or round a corner it is completely random.
I have replaced the diff mount, rear trailing arm rubbers, trailing arm axle rubbers. rear rotors, shoes and pads. I am at a complete loss and it is slowly driving me mad.
Please listen to the attached files to see if anyone has come across this and what the hell it is.
🙏Please help.
-
That’s a very clear “ting” sound with minimal wind noise in the background. Where did you put the microphone? Outside? Inside? Was the top up/down? How fast were you going when you recorded it?
It sounds like you have a gnome blacksmith in your trunk😳🤣
-
wife recorded with iphone hood down, driving approx 90km/h 50mph. although it does not seem speed related, can happen at low or high speed. sometimes you can drive for over an hour with nothing. then the next trip it could happen more often, it sounds like it coming from behind my head. but there is nothing there with the hood down >:(
-
It’s a very bright sounding “ting”. Definitely metal on metal. It sounds like something that is hanging with a metal tip that swings back and forth and just happens to hit something else “Tingy” randomly.
I’m trying to think what metal on the car would even make such a bright sound when it.
-
Could it be something to do with the chrome cover plates that are on either side of the seats? Seat belt hardware or something else hitting them?
-
The chrome plates on the seats was one of my first thoughts, both are secure. It does sound like when the seat belt metal clip hits something metal, but i am wearing the belt. i have shaken the car up and down left to right in the garage and can not get it to happen when stationary.
-
Is there anything underneath the parcel shelves that could be making the noise?
-
Tried that. Nothing. I have an amp under the parcel shelf behind the passenger seat, but that is also secure and does not move.
-
For something to make that sharp ting sound I would think it would have to be thin metal like a chrome piece. Could it be something metal hitting the glass inside the door?
BTW. You might want to make your sound file more “loadable”. I got it to work but I had to jump through some hoops on my iPhone.
More “ears” more help😜👍
-
that is the file type that can be uploaded here. I could not upload .wav .mp3 or .mp4. i don't understan why we can't upload
these common audio files. maybe an admin can enlighten me.
-
For now it might be easier to have the audio file in Dropbox, google drive, etc and link to it. This forum is more of a “click it” group. If it don’t work on one click they move on🤣🤣🤣🤣🤣🤣
-
Links to audio files if anyone is having trouble playing the one above.
https://www.dropbox.com/s/o12mir9vyohr2ta/Clink1.wav?dl=0
https://www.dropbox.com/s/gaiupbkw9rw69yj/clink2.wav?dl=0
https://www.dropbox.com/s/637s9j7jqcotas0/Clinks.mp4?dl=0
-
Try removing all 4 wheel covers and test if still making the noise.
-
Did you check in the soft top compartment?
-
The sound is like a ball-bearing in a glass jar.
-
The sound is of glass rolling against metal. You described it well by naming the sound files thus. Try rolling up all windows. Have you checked under the seats? Have you looked in the trunk?
I see that you are in Spain. Here in Italy, the cars get put onto a contraption which shakes the car and tests the suspension for the bi-annual inspection. If a similar process is used where you are, you might be able to replicate the noise in a garage and narrow down the area it is coming from. Another possibility is borrowing a GoPro camera with suction mounts and move it around the car in stages while driving in order to identify the sound source. Let us know what you find.
-
Weird noises I've had (but sounded different):
- brake lines underneath the body, slapping against body
- I had a bolt shear off inside the differential... sometimes you'd hear it and then it would go away again
However, both these were more metal on metal noises.
The reason we don't allow mp3 or wav file uploads is because there is not much call for that. I can fix that though. However, the way you solved it with Dropbox works well.
-
After listening several times :
Long shot but.
Is there a chance of a bolt or something rolling around in the frame rail? It is a hollow section. Would a seatbelt connection or something else have gotten loose and rolling around. I “think” these rails were coated in waxoil? Something could have never rolled until the wax let loose.
Will listen again.
-
todays update. I have just returned from a 200km drive. After trying a number of things,
It seems that if I have the drivers window is wound all the way up I don’t get as many clinks. Wind the window all the way down the clinks are way more frequent. I drove maybe 100km window up no clinks, wound down window for the next 15km multiple clinks. Window up nothing for ages then just on clink. Window down for the last 5km home and almost as the window was down I got a clink. This could all be coincidence. I have also noticed that with the window up the door feels more solid when closing. With the window down if feels different.
I guess I should investigate what’s going on inside the door.
-
The metal channel(s) mounted to the bottom of the window may be in the process of falling off
-
My vote goes with Gary that it is part of the window mechanism is loose somewhere.
-
Trying to make a contribution...
Assuming nobody has played a joke on you and placed a hidden glass vial undercover somewhere 😄, I‘d say one hears a smaller, loose or loose enough, piece of unpainted metal hitting a much heavier, fixed piece of unpainted metal; both have to be unpainted (unless there’s glass other than the windows and windshield in our cars?), otherwise you wouldn’t have such a clear bell-like sound; one of them has to be small and loose enough to resonate (hence the noise), and the other large enough and not moving, so as not to resonate (as it doesn’t give any noise of itself). The clarity of the sound does indeed lend to believe at least one of the pieces hitting each other is chrome (very hard, unyielding surface, that transmits vibrations really well and allows the piece to resonate clearly).
The smaller piece has to be free to move quite a bit, hitting the other piece very cleanly, as the noise is very clear, not muted or dull. It is not close to the other piece (in a relative sense), otherwise you’d hear it rattling, not hitting.
It also seems like maybe the small piece is hanging, at least partly loose, as in the third and fourth instance of the noise on your recording, is is almost as if the loose piece is hitting the larger piece quite frankly at first (third instance), and then kind of more lightly and right after on the fourth instance, like on the rebound or as if it were swinging, hitting a bit hard the first time (very clean and clear sound), having been jostled from its hanging position by some movement of the car, and then hitting again from its own momentum on a backswing or something like that.
A lot of reading into the ashes or the clouds, but to recap, try to think of a smaller piece of metal (although not that small, since the noise is not small) hanging loose and hitting an unpainted, very solid other part. It is hanging freely enough to hit another piece, but still attached somewhere, because it keeps doing the exact same noise repeatedly (it’s not moving around). It’s got to be something which is normally attached by two (or more) screws, one of which came off (hence the hanging), the other still there, but also coming loose (otherwise no swinging and no clear bell-like ringing). It has to have clear space around it to be able to swing back and forth.
Finally, it may be decorative, as you don’t seem to report that any mechanism is inoperable?
If the phone was in the car, I’d say the object is also in the car, not underside.
In addition to the window mechanisms as candidates, is there any void (empty space) and a candidate part inside the seat (head rest armature)?
-
In addition to the window mechanisms as candidates, is there any void (empty space) and a candidate part inside the seat (head rest armature)?
Or under seat cushion? broken spring?
I like the FGN59 reasoning!!!
-
Well FGN59 is French. They are the very best engineers in the world!
-
Well FGN59 is French. They are the very best engineers in the world!
The difference between Heaven and Hell:
Heaven - French are the cooks
English are the policemen
Germans are the engineers
Swiss are the organizers
Italians are the lovers
Hell - French are the engineers
English are the cooks
Germans are the policemen
Swiss are the lovers
Italians are the organizers.
8) 8)
-
I’d love to try this version of Hell, provided you can go home at the end of the day, like after a visit to an amusement park ;D
Not to sound too chauvinistic, but I do believe the education that engineers have to follow in France is one of the best in the world (I certainly wouldn’t say it is the best, but it’s up there). What French organizations (corporations, government entities, government itself) do with this expensive resource doesn’t do justice to this education, unfortunately.
Having said that, there’s also the ingenuity of Italians, the rigor of Germans, the grit of Spaniards, the focus on whole systems of English engineers, and that’s just for the bigger European countries. If one includes all the other interesting and successful approaches to engineering from different cultures (US, Japanese, Russian, Korean, etc.), think of what we all could achieve together !
Would that work for cooking too? Not so sure :o
-
Having said that, there’s also the ingenuity of Italians, the rigor of Germans, the grit of Spaniards, the focus on whole systems of English engineers, and that’s just for the bigger European countries. If one includes all the other interesting and successful approaches to engineering from different cultures (US, Japanese, Russian, Korean, etc.), think of what we all could achieve together !
Would that work for cooking too? Not so sure :o
Well, we have most of that here on the forum, I think. So what is making this bloody noise? ;) ;)
-
A wife/girlfriend’s earring ?
(Good engineering includes outside of the box thinking ;D)
-
Okay, so I removed the door panel to investigate. Now I thought this could be it, I found a the bolt at the top of the door above
The door lock that holds the mechanism was loose. When the window was down I can move it side to side, window up
This movement is gone. So I tightened the bolt and all feels firm window down and up.
Every thing was still attached to the bottom of the glass. Put door panel back, and went for a test drive.
Window down it is still ****ing there, what the hell. Okay tried window up and nothing. What on earth is going on ?
Could it be when the window is up less air is getting into the cabin, not enough to move what ever is taunting me.
Does no happen with hood up either.
When I get chance the seat is coming out to check there. Keep thinking chaps.
DM
-
Take the door panel off and then go for a ride again. Maybe you can see what is going on but keep your eyes on the road 😬
-
Know what? There is this big spring there, I do not remember when it is expanded and when it is contracting (when the glass is up or down). It should be in the plastic sleeve that prevents the noise. have you looked at this spring? There is this metal tab holding it in the middle....
-
I did look at the spring, and the rubber cover was to the front of the door. I moved it back over the start of the spring
But could not move it to cover the whole spring. I checked online to see examples of other doors and most I found had
The spring exposed so I left it where it was. When tapped the spring it does give a similar sound, but could not see how the
Spring would move. I think I will be removing the door panel again…
-
This could be a stab in the dark, but sitting in a cafe I heard this tiny clinking noise. Check out the movie. Perhaps this is what is causing your noise - 2 types of metal touching each other occasionally.
-
I did look at the spring, and the rubber cover was to the front of the door. I moved it back over the start of the spring
But could not move it to cover the whole spring. I checked online to see examples of other doors and most I found had
The spring exposed so I left it where it was. When tapped the spring it does give a similar sound, but could not see how the
Spring would move. I think I will be removing the door panel again…
It vibrates as the car bumps. It may be tapping against that metal tab. Cover this tab maybe with some insulating tape.
But in this case you would hear it when slammi ng doors closed with window down...
-
...It seems that if I have the drivers window is wound all the way up I don’t get as many clinks. Wind the window all the way down the clinks are way more frequent.
I had this very problem.
what it turned out to be is the bottom of the window arm contacting the bottom of the door, when the window was down.
Now, in the perfect world, with a factory adjusted window, all original everything and nothing worn, this will not happen. As soon as you "break the seal" and change or adjust anything all bets are off. You window may never be in adjustment again unless you send the entire car to Gernold Nisius and he spends a few days on it...but I digress.
There were a few solutions.
1. Adjust the stop so it doesn't go down that far...
2. Do NOT put the window down all the way.
3. Add a piece of foam cushion to the bottom of the door.
I think I did mostly, all three things at one time or another.
-
I had this very problem.
what it turned out to be is the bottom of the window arm contacting the bottom of the door, when the window was down.
Now, in the perfect world, with a factory adjusted window, all original everything and nothing worn, this will not happen. As soon as you "break the seal" and change or adjust anything all bets are off. You window may never be in adjustment again unless you send the entire car to Gernold Nisius and he spends a few days on it...but I digress.
There were a few solutions.
1. Adjust the stop so it doesn't go down that far...
2. Do NOT put the window down all the way.
3. Add a piece of foam cushion to the bottom of the door.
I think I did mostly, all three things at one time or another.
This is what I found inside my doors when stripping it out. On both sides. It is rubber.
-
This is what I found inside my doors when stripping it out. On both sides. It is rubber.
Yes, and what you will find is that "soft items" such as gaskets, seals, etc. are often removed in a restoration and rebuild and often not replaced. (Same thing with data tags.)
Mine were removed at some point when doors were worked on, OR just rotted from age. New rubbers helped.