Exhaust Rattle C63S coupe.
#310
Greased and test drove. Little excess came back out the holes so I wiped that down as well. My car originally didn’t rattle that much, but you could notice it during light load and idle. Car sounds much better/cleaner without the rattle. Family also thinks it doesn’t sound like a tin can now
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#311
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700HP Facelift converted PFL C63 S Coupe
Greased and test drove. Little excess came back out the holes so I wiped that down as well. My car originally didn’t rattle that much, but you could notice it during light load and idle. Car sounds much better/cleaner without the rattle. Family also thinks it doesn’t sound like a tin can now ![Smilie](https://mbworld.org/forums/images/smilies/smile.gif)
![Smilie](https://mbworld.org/forums/images/smilies/smile.gif)
You're all set now man didn't I tell you it would work with copper grease! Did you do the H-pipe only or all 3 flaps?
Here is a clip of mine just after greasing the H-pipe and mild acceleration in 3rd. Zero rattles
https://www.instagram.com/reel/Csq5uZNJchY/?igshid=MTc4MmM1YmI2Nghttps://www.instagram.com/reel/Csq5uZNJchY/
Last edited by Jimmy_c63s; 10-11-2023 at 12:38 AM.
#312
Haha definitely enjoying the clean exhaust note. I'm glad people won't think I'm driving a tow truck anymore. I did all three flaps as my mufflers were actually a little worse than the H pipe. Hopefully it stays this way for a while haha
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Jimmy_c63s (01-07-2024)
#313
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It will stay that way for at least 3 to 6 months then as the grease gets dried you'll need to grease the H-pipe again one more time and that's it. It will never rattle again.
Mercedes had the right idea with lubricating the flaps but their grease is sh*t because it can't handle the heat and hardens up after a few weeks. Copper grease won't harden like the Mercedes grease does, it just becomes a tiny bit dry and thick but won't harden up.
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mokawop (10-11-2023)
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Jimmy_c63s (01-07-2024)
#316
Super Member
Glad it worked man.
It will stay that way for at least 3 to 6 months then as the grease gets dried you'll need to grease the H-pipe again one more time and that's it. It will never rattle again.
Mercedes had the right idea with lubricating the flaps but their grease is sh*t because it can't handle the heat and hardens up after a few weeks. Copper grease won't harden like the Mercedes grease does, it just becomes a tiny bit dry and thick but won't harden up.
It will stay that way for at least 3 to 6 months then as the grease gets dried you'll need to grease the H-pipe again one more time and that's it. It will never rattle again.
Mercedes had the right idea with lubricating the flaps but their grease is sh*t because it can't handle the heat and hardens up after a few weeks. Copper grease won't harden like the Mercedes grease does, it just becomes a tiny bit dry and thick but won't harden up.
#318
Super Member
https://www.canadiantire.ca/en/pdp/p...per+grease#srp
https://www.weicon.ca/anti-seize-cop...paste/10027280
#319
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700HP Facelift converted PFL C63 S Coupe
Will either of these work or should i be looking at something else?
https://www.canadiantire.ca/en/pdp/p...per+grease#srp
https://www.weicon.ca/anti-seize-cop...paste/10027280
https://www.canadiantire.ca/en/pdp/p...per+grease#srp
https://www.weicon.ca/anti-seize-cop...paste/10027280
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untamedd (01-07-2024)
#320
How long after applying the grease did it take for the sound to go away? I have a 2022 GLE63s with the same exact rattle problem being described here. I used about 4 of the 5ml syringes and the sound is still there. Would you put more or try something else?
#321
Use a torch on the spring and stretch it a little. This is the fix
#322