Knocking on Front Passenger Corner
Thread Starter
Junior Member
Joined: Dec 2014
Posts: 61
Likes: 3
From: London, Canada
2016 MercedesAMG C63S
Knocking on Front Passenger Corner
Hey Guys,
So, I've only had my car for about 2 weeks, and now I noticed that there is a knocking sound when I go over bumps, and the engine restarts on the Stop/Start. Have't had the time to notify the dealer as I've been pretty busy. But just wondering if you guys have experienced this problem. Oh... And I can usually hear when turning left, but not turning right. Seems odd to me.
Any insight would be grateful. I plan on going to dealer soon.
So, I've only had my car for about 2 weeks, and now I noticed that there is a knocking sound when I go over bumps, and the engine restarts on the Stop/Start. Have't had the time to notify the dealer as I've been pretty busy. But just wondering if you guys have experienced this problem. Oh... And I can usually hear when turning left, but not turning right. Seems odd to me.
Any insight would be grateful. I plan on going to dealer soon.
Super Member
Joined: Oct 2015
Posts: 975
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From: Abu Dhabi, United Arab Emirates
C63S 2016
that's very odd ... I cant get my head around the fact that people are still experiencing such things 2 years into the production of the car ! tbh this is the first time I hear such thing .. unusual !
I guess you have to take it to the dealer very soon dude
I guess you have to take it to the dealer very soon dude
MBWorld Fanatic!
Joined: Sep 2015
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From: Sydney
AMG GLC63 E-Performance Edition 1
I had a similar annoying sound in my coupe... I finally figured it out, it was the passenger seatbelt hitting the passenger seat.
It's still there, need to figure out how to stop it.
It's still there, need to figure out how to stop it.
Super Member
Joined: Oct 2015
Posts: 975
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From: Abu Dhabi, United Arab Emirates
C63S 2016
isn't there the magnet on the top corner of the seat ? I know its there in my sedan's recaro seats?
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C63S
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2016 C63S Sedan
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From: Austin, TX
2015 Range Rover Sport Autobiography; 2019 AMG E63S; 2021 Range Rover HSE Westminister
Super Member
Joined: Oct 2015
Posts: 975
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From: Abu Dhabi, United Arab Emirates
C63S 2016
Was just about to tell them to use 3m tape and velcro a patch on the hard shell of the sports seats where the belt buckle hits. And right, with passenger on no knocking. Just clip the belt in and ride around and you'll see there is no weird knocking. I think the mysterious rattles, knocks and sights of weird things can all be simply explained.
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2016 C63S Sedan
Super Member
Joined: Oct 2015
Posts: 975
Likes: 98
From: Abu Dhabi, United Arab Emirates
C63S 2016
anyway, I don't deny that its very hard to locate, and it might not work easily, took me a while to do it, but I gave up cuz every time rides and wears the seatbelt I have to attach it again and it just keeps going on if you understand what I mean 
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C63S
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Joined: Mar 2013
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From: WNY
'17 AMG C63S Coupe
I have the same "rattle" issue coming from the passenger seat area, but haven't had time to locate the source. Makes sense that it's the seat belt. I've put 700 miles on the car, and this started happening about 2 days ago, after I had a passenger.
Thanks for pointing me in the right direction.
Thanks for pointing me in the right direction.
Member
Joined: Jul 2016
Posts: 239
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From: Austin, TX
2015 Range Rover Sport Autobiography; 2019 AMG E63S; 2021 Range Rover HSE Westminister
Its the seatbelt buckle hitting the chair. By the way I think SBH- is joking about the mysterious magnet and you are all falling for it. I have those same seats but no magnet I can find. Tie a piece of mitt around the buckle it's easily reversible too.
today I promise 
Thread Starter
Junior Member
Joined: Dec 2014
Posts: 61
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From: London, Canada
2016 MercedesAMG C63S
I have the same "rattle" issue coming from the passenger seat area, but haven't had time to locate the source. Makes sense that it's the seat belt. I've put 700 miles on the car, and this started happening about 2 days ago, after I had a passenger.
Thanks for pointing me in the right direction.
Thanks for pointing me in the right direction.
Member
Joined: Jul 2016
Posts: 239
Likes: 25
From: Austin, TX
2015 Range Rover Sport Autobiography; 2019 AMG E63S; 2021 Range Rover HSE Westminister
Behold, the mysterious seatbelt magnet! It actually exists!!
So I have been looking for the mysterious magnet for the seatbelt buckle and and found it this evening and it actually works very well. Mercedes knew about the knocking noise and did a solution. Great except who the hell thought hiding it underneath the leather was a good idea?
Even the dealer not only can't find it, they don't even know it's there! Nice job Mercedes, but this was a poor communication made worse by just confounding implementation of a good solution. So many people think their new C63S is rattling when you already have a solution.
Enough ranting. Click on the image to see the location if its too small.
Go back to enjoying your cars guys.
Even the dealer not only can't find it, they don't even know it's there!
Nice job Mercedes, but this was a poor communication made worse by just confounding implementation of a good solution. So many people think their new C63S is rattling when you already have a solution.Enough ranting. Click on the image to see the location if its too small.
Go back to enjoying your cars guys.
Last edited by VaserC63S; Oct 19, 2016 at 10:18 PM.
MBWorld Fanatic!
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From: Sydney
AMG GLC63 E-Performance Edition 1
So I have been looking for the mysterious magnet for the seatbelt buckle and and found it this evening and it actually works very well. Mercedes knew about the knocking noise and did a solution. Great except who the hell thought hiding it underneath the leather was a good idea?
Even the dealer not only can't find it, they don't even know it's there! Nice job Mercedes, but this was a poor communication made worse by just confounding implementation of a good solution. So many people think their new C63S is rattling when you already have a solution.
Enough ranting. Click on the image to see the location if its too small.
Go back to enjoying your cars guys.
Even the dealer not only can't find it, they don't even know it's there!
Nice job Mercedes, but this was a poor communication made worse by just confounding implementation of a good solution. So many people think their new C63S is rattling when you already have a solution.Enough ranting. Click on the image to see the location if its too small.
Go back to enjoying your cars guys.
The noise is so damn annoying!!!
MBWorld Fanatic!
Joined: Jul 2015
Posts: 1,216
Likes: 114
From: SoCal
2016 C63S Sedan
So I have been looking for the mysterious magnet for the seatbelt buckle and and found it this evening and it actually works very well. Mercedes knew about the knocking noise and did a solution. Great except who the hell thought hiding it underneath the leather was a good idea?
Even the dealer not only can't find it, they don't even know it's there! Nice job Mercedes, but this was a poor communication made worse by just confounding implementation of a good solution. So many people think their new C63S is rattling when you already have a solution.
Enough ranting. Click on the image to see the location if its too small.
Go back to enjoying your cars guys.
Even the dealer not only can't find it, they don't even know it's there!
Nice job Mercedes, but this was a poor communication made worse by just confounding implementation of a good solution. So many people think their new C63S is rattling when you already have a solution.Enough ranting. Click on the image to see the location if its too small.
Go back to enjoying your cars guys.
I tried it and it is there and works. Nice find.
