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Rattling boot lid

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Rattling boot lid

Postby MartinMax » Fri Feb 09, 2018 8:55 am

My 206cc has a strange rattle in the boot lid whenever I go over a rough road or bumps. I partially traced the issue to the part where the lid metal is connected with the strengthening brace under the lid. there are traces of silicone glue that held the two together but the bond has loosened.

Question: Can I use regular (bathroom) silicone to glue the two back together?

There was a note in some of the other posts that the acetic fumes can damage the seals and metal?
What can be used as alternate glue?
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2001 206cc 2.0 S16
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Re: Rattling boot lid

Postby IanL » Fri Feb 09, 2018 9:10 am

Loctite Epoxy Weld Bonding Compound, perhaps?
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Re: Rattling boot lid

Postby MartinMax » Fri Feb 09, 2018 9:57 am

@IanL, that might require sanding the paint which I would like to avoid.
Also, the quantity would be enough for just one joint, while the lid would require 7 (or 14) glue joints.

Additionally, the old glue as far as I can see was a bit rubbery, probably to provide some flex betwen the two parts. I've added an image with blue markings where the bonding points were (roughly).
under boot lid.gif
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Re: Rattling boot lid

Postby IanL » Fri Feb 09, 2018 12:02 pm

How about 3M™ Scotch-Weld™ Plastic & Rubber Instant Adhesive PR600.
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Re: Rattling boot lid

Postby gazza82 » Fri Feb 09, 2018 3:32 pm

Can you simply wedge some thin strips of rubber or similar in the gap to see if it fixes it first?
Family Fleet: ex-Cayman Green 206 CC 2.0 LE, Indigo Blue 206 1.4 HDi Hatchback, Alfa Romeo MiTo, Renault Clio II 1.5dCi
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Re: Rattling boot lid

Postby Capncol » Fri Feb 09, 2018 3:54 pm

Silicone sealer is not an adhesive,. Sikaflex would be better.
Cheers Col.


206cc 1.6ltr (Wifes toy)
Mercedes ML (workhorse)
Corvette C3 (my toy)

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Re: Rattling boot lid

Postby MartinMax » Fri Feb 09, 2018 4:49 pm

@gazza82, Already did that, and it does fix it. Them issue is simply that the sheets of metal that were initially glued together are now separated and when they flex they rattle.
But I will check if I can buy some of the proposed glues (Sikaflex or 3M™ Scotch-Weld™)
Also possible solution can be door mounting foam (Ceresit or similar) as it does not expand after initial expansion and it will provide flex.

On a different note, as I plan to install audio in the boot, the bot-lid desperately needs some Dynomat for sound deadening.
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2001 206cc 2.0 S16
Silver with matte black accents...
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Re: Rattling boot lid

Postby MartinMax » Wed Mar 13, 2019 9:27 am

UPDATE:
The rattle was fixed by doing the following:
1. Filled the gaps with silicone so the panels can flex but not bang together.
pic 1.jpg

2. Put sound deadener on the bottom
pic 2.jpg

3. Placed an additional washer on this pin
pic3.jpg

The rubber grommet has shrunk over time and there was a bit of play in the lid.
All in all now it is quiet.
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