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1998K
03-27-2003, 10:43 PM
Since i bought the car, second hand by the dealerschip (about 1 year ago, with 55000 Km on the clock) I've a problem that, as per MB technician is not a big worry.

Mine is a manual C200 Kompressor.

Revving in neutral at about 4500 5000 rpm (but during cruise otherwise engine limiter cut at about 3500 4000 rpm) I hear a rattling noise sincronized with the engine rpm.

MB technician say that it's from the exhaust and it's not a problem!

Please do You have some similar experience.

Marco

1998K
03-30-2003, 09:38 PM
:hmmm:

MBATF
03-30-2003, 10:01 PM
my muffler is so loud that i can't even tell, by before i had the new muffler put on, i can't recall any noise, since my stereo always up high, so sorry dude, can't help u on that one.!;)

1998K
03-30-2003, 11:52 PM
MBATF, thanks a lot in any case.

Marco

1998K
04-03-2003, 09:45 PM
No other idea?

:(

Renn 208
04-04-2003, 11:33 AM
Do your exhaust hangers look okay?

1998K
04-06-2003, 11:37 PM
Thanks Renn 208,

sorry for my late reply, but during W-end I'm without PC.

Regarding your question, yes. They have been checked by MB technician and they said that noise is coming from inside the exaust (stock from factory); (it seems some internal element).

Hi

Marco

SW1TCHED
04-07-2003, 06:23 PM
hey, I have the same problem, four months ago I bought an AMG exhaust system for my 230k and I still hear the same noise from inside the exhaust. Nobody can tell me what it is even the technicians from MB....

I need help too!!!! :bored: :(

1998K
04-07-2003, 10:46 PM
Thanks a lot Sw1tched, it seems we have same noise. According to my MB technician it's not a problem.

...but our engine is a Mercedes not a washing machine

:D :( :bored:

hi

SW1TCHED
04-08-2003, 06:29 PM
That is what I mean, we bought a MB we expected quality, it is not possible that if we paid almost 1000 dlls. for a AMG exhaust system we have that kind of problems. Friday I am going with a mechanic that a friend recommended to me, so If he can correct the problem, I will tell you.

;)

1999 C230 KOMPRESSOR
Sport package
Manual Transmission

1998K
04-08-2003, 10:38 PM
I'm with You.

Hoping You'll solve the matter.

Marco

ryhi
06-06-2003, 08:21 PM
when in park, when i rev i get a single "click" noise at exactly 1.5 rpms. it also does this in drive, but i forgot what rpm.

MBATF
06-06-2003, 11:29 PM
O.k...here might be something helppufl, cuz i have seen some foo did this to otehr people's car...taht is... Some stupid people sometimes will throw coin(s) from teh tip into teh muffler, and then when you start driving, teh coin(s) will rattle, and making noises, teh bad news is..if thats the case, then 90% the time they can get it out, but good news is, if you ar ethe lucky 10% then they might cut undo teh muffler, and shaking it out of the pipe, or teh tip, but thats only 10% of teh chance

98c43amg
06-27-2003, 04:07 PM
Originally posted by 1998K
Since i bought the car, second hand by the dealerschip (about 1 year ago, with 55000 Km on the clock) I've a problem that, as per MB technician is not a big worry.

[snip]

!!!!
I'm on my 4th AMG exhaust due to this
!!!!

I have a C43.

1st replacement was due to being rear ended while I was sitting at a stop light. The original exhaust did not rattle.

The body shop replaced the exhaust. Within much less than a year, "something" started rattling around 2500 rpm. I couldn't put my finger on what it was ; I though it was something in the body. The dealership diagnosed it to be the exhaust.

MB parts are under a 1 year warranty, so they were good enough to replace it for me and not make me have to go back to the Body Shop. [that's exhaust # 3 on the car].

THEN, within less than 1 year THAT exhaust started to rattle. Here's the rub, MB does not warrranty a part that was replaced under warranty. They were about to make me pay for a new one!!!

HOWEVER, the car was still under warranty. Thus they replaced it again. So now I'm on my 4th exhaust on the car.

It's without a doubt a quality control problem with the exhaust manufacturer for Mercedes. My dealership says there's "no known problem" for the exhaust.

Finding this thread was quite a surprise; but then again not. I see there's quite a number of us that have experienced this same thing now. Time to become a vocal minority I see and get MB to acknowledge this quality control issue of theirs.
:)

JRE320
06-28-2003, 01:25 AM
You guys ever try checking your differential mount bushing?
I think there's 2 rubber bushing. See if those bushing are worned out. If the bushing are out then it might also one of the cause for the rattling sound. ;)

Rocky
06-28-2003, 11:05 AM
Om C36's the amg exhaust hanger is kinda long. See if the rod that the rubber thingie is hooked up too is rubbing against the back of the bumper. I had that problem..cut an inch off the rod thingie.

1998K
06-30-2003, 06:48 AM
Problem mentioned by JRE320 seems to be another terrible gost! Few days ago I went to dealership because another problem: some rattle coming from underside of car running on "bad surfaces" (particulary downhill), hearing particularry also with engine off in neutral and preceeding very slowly. MB Technician refer to a common problem due to a lack of coupling somewhere in the transmission shaft! Nothing to worry too much as he said!:(

Story does not conclude: ticking noise from front left side as per MB technician seems to give advance of a wheel bearing that has decide to stop working well.

Waiting next service for further investigation and repair where necessary.

All above, to add to the exhaust rattling noise!




:bored:

coolcarlskic43
07-25-2004, 11:21 AM
Originally posted by JRE320
You guys ever try checking your differential mount bushing?
I think there's 2 rubber bushing. See if those bushing are worned out. If the bushing are out then it might also one of the cause for the rattling sound. ;) I second that! I hope thaT's what the noise is and not my tranny!

Paul
07-27-2004, 11:57 AM
my exhaust did the same thing,there was a nut at the base of
the header that was slightly loose,it was hard to notice,very rusty.but after replacing the exhaust($3500NZD,which could almost buy a custom brabus C43),I tightened the nut and
fixed the problem....very gutting:rolleyes:

SLAMMED_C
07-27-2004, 07:38 PM
with most rattling noises from exhausts.. check all clamps and brackets that contact the exhaust, next any loose heat shields can cause noises.
most common problem is the catalytic converter rattling.
and with some people mentioning the AMG exhausts and rattling.. Ive seen a few replaced due to broken welds rattling around in the muffler.

coolcarlskic43
07-27-2004, 09:05 PM
Originally posted by SLAMMED_C
with most rattling noises from exhausts.. check all clamps and brackets that contact the exhaust, next any loose heat shields can cause noises.
most common problem is the catalytic converter rattling.
and with some people mentioning the AMG exhausts and rattling.. Ive seen a few replaced due to broken welds rattling around in the muffler. Noise sounds like its coming from the new high flow cats.Not completely sure though!

1998K
07-28-2004, 12:00 AM
Originally posted by 1998K
Problem mentioned by JRE320 seems to be another terrible gost! Few days ago I went to dealership because another problem: some rattle coming from underside of car running on "bad surfaces" (particulary downhill), hearing particularry also with engine off in neutral and preceeding very slowly. MB Technician refer to a common problem due to a lack of coupling somewhere in the transmission shaft! Nothing to worry too much as he said!:(

Story does not conclude: ticking noise from front left side as per MB technician seems to give advance of a wheel bearing that has decide to stop working well.

Waiting next service for further investigation and repair where necessary.

All above, to add to the exhaust rattling noise!




:bored:

up-dating for your information and usefulness:
exhaust rattling come from catalytic (inside) to keep because seems it's not a problem as per MB technician.

Ticking noise from front left side was the plastic center wheel cap that was not MB original part, has been replaced and it's ok!

Hi
:(

coolcarlskic43
07-28-2004, 03:02 AM
Originally posted by 1998K
up-dating for your information and usefulness:
exhaust rattling come from catalytic (inside) to keep because seems it's not a problem as per MB technician.

Ticking noise from front left side was the plastic center wheel cap that was not MB original part, has been replaced and it's ok!

Hi
:( ??????????????:confused: Dont understand what you're saying about cats!

coolcarlskic43
07-28-2004, 03:10 AM
Originally posted by 1998K
up-dating for your information and usefulness:
exhaust rattling come from catalytic (inside) to keep because seems it's not a problem as per MB technician.

Ticking noise from front left side was the plastic center wheel cap that was not MB original part, has been replaced and it's ok!

Hi
:( ??????????????:confused: Dont understand what you're saying about cats!

1998K
07-28-2004, 03:55 AM
Originally posted by coolcarlskic43
??????????????:confused: Dont understand what you're saying about cats!

sorry for my bad explanation.

The rattling seems generated from inside the catalytic converter, because of some internal breaking that, according to MB mechanics, is not a big problem.

So I keep it as is, till the catalytic converter will need to be changed.

Hoping now I'm more clear

J Irwan
07-28-2004, 07:06 AM
Originally posted by 1998K
sorry for my bad explanation.

The rattling seems generated from inside the catalytic converter, because of some internal breaking that, according to MB mechanics, is not a big problem.

So I keep it as is, till the catalytic converter will need to be changed.

Hoping now I'm more clear


It also happened on my brother E36 M3.

The exhaust make rattling noise, so the dealer replace the exhaust underwarranty. After a few miles the noise present againt and finally they were able to determined that it was the cataylitic converter is the source. So the cat also replaced underwarranty as well.


The noise is very weak but it was there and become more apparent as you paid attention and listen carefully to it.

The noise occur only at certain rpm (I forgot what was it),

Although it wasn't a big of deal, my brother brought the car to the dealer and ended up with new muffler and new cat under warrantty ;)

And looks like your technician is on the right path.
In US the manufacture should warranty any part associates with the exhaust/emission up to 80.000 miles.

I am not sure what is the law and regulation in Italy.

Hopefully the dealer will replace your cat for free.



Regardz,

coolcarlskic43
07-28-2004, 12:24 PM
Originally posted by J Irwan
It also happened on my brother E36 M3.

The exhaust make rattling noise, so the dealer replace the exhaust underwarranty. After a few miles the noise present againt and finally they were able to determined that it was the cataylitic converter is the source. So the cat also replaced underwarranty as well.


The noise is very weak but it was there and become more apparent as you paid attention and listen carefully to it.

The noise occur only at certain rpm (I forgot what was it),

Although it wasn't a big of deal, my brother brought the car to the dealer and ended up with new muffler and new cat under warrantty ;)

And looks like your technician is on the right path.
In US the manufacture should warranty any part associates with the exhaust/emission up to 80.000 miles.

I am not sure what is the law and regulation in Italy.

Hopefully the dealer will replace your cat for free.



Regardz, Guess I gotta get in touch with Cklasse! This noise is annoying as hell! Sounds like a bunch of rocks or something inside!Only happens at initial throttle when I first rev the motor. After I'd say abut 1800-2200 rpm's there is no noise,but when the motor comes down off the revs at lower rpm's here comes the chain rattling noise and dissappears at idle.

1998K
07-29-2004, 01:03 AM
Originally posted by J Irwan


I am not sure what is the law and regulation in Italy.


Regardz,

Thanks a lot J Irwan. Unfortunately here, but I'm quite sure in main Europe State, law and regulations are not so consumer protective as in USA, besides mine has been purchased as used car (with 3 years of life).
A part this, car run very well.
:)

your brother is really lucky: he has a really nice car!

Hi