new C300 with Engine noise
Member
Joined: Jan 2016
Posts: 238
Likes: 24
2016 volkswagen beetle
Quick reply
Seems like like w205 c classes built before 2015 had some glitches (wind noise, burmester audio problem, and some engine problems) I saw reviews that said the later builds (2015 and up), the issues were fixed. I also think it had something to do with the Alabama plant. If it were built in Germany it wouldn't have had a problem.
Junior Member
Joined: Feb 2015
Posts: 59
Likes: 1
From: Canada
2015 C300 Lux 4MATIC
I am reading these scary posts about a need for an engine recall, big problem, etc...and wonder. Do we really have a massive problem with the C-class engine? Or maybe some of us have a problem, but not all of us, and not all engine clicking sounds, as described in the forum, are the same? I would like to know.
I have heard a very faint clicking noise a few times. It appeared after acceleration and during coasting, for several seconds. I have mentioned it to the service at my dealer, they "looked at it", and found nothing. At least, I have the evidence it was reported, in case of a big problem later. Right now, I don't believe the sound is pointing to any problems, maybe it is normal for fuel injection, as some suggested. Still, I would like to hear from somebody who has solid understanding of what is going on.
I have heard a very faint clicking noise a few times. It appeared after acceleration and during coasting, for several seconds. I have mentioned it to the service at my dealer, they "looked at it", and found nothing. At least, I have the evidence it was reported, in case of a big problem later. Right now, I don't believe the sound is pointing to any problems, maybe it is normal for fuel injection, as some suggested. Still, I would like to hear from somebody who has solid understanding of what is going on.
Member
Joined: Jan 2015
Posts: 82
Likes: 0
From: SF Bay Area
Mercedes C300, BMW X5
I am reading these scary posts about a need for an engine recall, big problem, etc...and wonder. Do we really have a massive problem with the C-class engine? Or maybe some of us have a problem, but not all of us, and not all engine clicking sounds, as described in the forum, are the same? I would like to know.
I have heard a very faint clicking noise a few times. It appeared after acceleration and during coasting, for several seconds. I have mentioned it to the service at my dealer, they "looked at it", and found nothing. At least, I have the evidence it was reported, in case of a big problem later. Right now, I don't believe the sound is pointing to any problems, maybe it is normal for fuel injection, as some suggested. Still, I would like to hear from somebody who has solid understanding of what is going on.
I have heard a very faint clicking noise a few times. It appeared after acceleration and during coasting, for several seconds. I have mentioned it to the service at my dealer, they "looked at it", and found nothing. At least, I have the evidence it was reported, in case of a big problem later. Right now, I don't believe the sound is pointing to any problems, maybe it is normal for fuel injection, as some suggested. Still, I would like to hear from somebody who has solid understanding of what is going on.
I really want to see if anyone can get a fall TSB and see the range of issue. Is it really just before Mid June 2015 or more specific in time line.
Super Member
Joined: Apr 2010
Posts: 789
Likes: 47
From: Eastern Massachusetts
2021 E450, 2020 C43, 2015 C300, 2007 C280
Correction of the date before which 2015 C300 engines may be defective
I have corrected the date before which 2015 C300 engines may be defective because of defective wrist pins (as previously shown in my post #18): "The defective parts are in engines made before April 20, 2015. [This is the correct information, as corrected on 01/03/05. See note below.])
[Note added 01-03-15: see the comment by deafcon at https://mbworld.org/forums/c-class-w...il#post6612605. So that readers do not have go to deafcon's comment, here is the operative sentence, "Any M274 built at the Infiniti plant in Dechard before serial number ~43000, or built in Germany before roughly serial ~400000 could develop the problem. New wrist pins went into production engines starting April 20th.]
[Note added 01-03-15: see the comment by deafcon at https://mbworld.org/forums/c-class-w...il#post6612605. So that readers do not have go to deafcon's comment, here is the operative sentence, "Any M274 built at the Infiniti plant in Dechard before serial number ~43000, or built in Germany before roughly serial ~400000 could develop the problem. New wrist pins went into production engines starting April 20th.]
Senior Member
Joined: Dec 2014
Posts: 301
Likes: 19
2015 W205
My car still at the dealer for it's engine rebuild. Since November 27th.
Today I counted up the business days (Mon-Fri) my car has spent at the dealer in 12 months over 7 separate service visits.
51 days. The best or nothing indeed!
Today I counted up the business days (Mon-Fri) my car has spent at the dealer in 12 months over 7 separate service visits.
51 days. The best or nothing indeed!
Super Member
Joined: Apr 2010
Posts: 789
Likes: 47
From: Eastern Massachusetts
2021 E450, 2020 C43, 2015 C300, 2007 C280
Correction of cut-off date for defective 2015 C300 engines
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Super Member
Joined: Apr 2010
Posts: 789
Likes: 47
From: Eastern Massachusetts
2021 E450, 2020 C43, 2015 C300, 2007 C280
"Sounding cheap"?
Last edited by gfmohn; Jan 17, 2016 at 07:48 PM.
Junior Member
Joined: Jun 2010
Posts: 53
Likes: 10
w205
Updated: sent car to dealer 2 weeks ago. the guy drove my car and said right away "there is too much noise in this one" So 2 days later called said the rubber seal of the steering column on the "fire wall" is deformed 
which let engine noise leak into the cabin.
However the part is back ordered in German and there is no ETA. I have been drove a w204 for 2 wks now and don't know how long I will wait.
which let engine noise leak into the cabin. However the part is back ordered in German and there is no ETA. I have been drove a w204 for 2 wks now and don't know how long I will wait.
replaced steering shaft parts number mba2054600309
the profile seal detatches fom the stem of the steering shaft
R and R undertrays R and R underdash trim
MBWorld Fanatic!
Joined: Sep 2014
Posts: 1,822
Likes: 33
From: Whitefield, NH
2015 C300 Sport: Palladium, Premium, Multimedia, Leather, BLIS
These are not quiet engines, and all exhibit some direct injection chatter. How much different is the sound of bad wrist pins from the normal sounds of this engine?
If there is no audible clicking noise while cruising, just the normal buzz of the turbo four, would this indicate that the engine is free of this defect? Also, does anyone know how many engines are affected by this and, if widespread, will there be a recall to check all engines made before the April, 2015 date?
If there is no audible clicking noise while cruising, just the normal buzz of the turbo four, would this indicate that the engine is free of this defect? Also, does anyone know how many engines are affected by this and, if widespread, will there be a recall to check all engines made before the April, 2015 date?
Super Member
Joined: May 2015
Posts: 692
Likes: 24
From: Cambridge, MA
2015 C300 Sport 4MATIC
These are not quiet engines, and all exhibit some direct injection chatter. How much different is the sound of bad wrist pins from the normal sounds of this engine?
If there is no audible clicking noise while cruising, just the normal buzz of the turbo four, would this indicate that the engine is free of this defect? Also, does anyone know how many engines are affected by this and, if widespread, will there be a recall to check all engines made before the April, 2015 date?
If there is no audible clicking noise while cruising, just the normal buzz of the turbo four, would this indicate that the engine is free of this defect? Also, does anyone know how many engines are affected by this and, if widespread, will there be a recall to check all engines made before the April, 2015 date?
Junior Member
Joined: Sep 2011
Posts: 22
Likes: 0
1998SLK230, 2015 C300 4Matic
Again with the hmmm. Mine makes the noise at redline, sounds like it's coming from motor not exhaust, why I figured it's a turbo noise.
I saw the wrist pin thread and I definitely have a tick, if you find the keyfob thread there is a reason to bring it back to the dealer.
I have a lot of vacation days left to use before April - weird policy where vacation isn't tied to calendar. I hate to spend them at the dealer but I'll take the tech out somewhere where we can push the car at WOT and see what they have to say.
Probably a couple of week at least until I can report on that.
I saw the wrist pin thread and I definitely have a tick, if you find the keyfob thread there is a reason to bring it back to the dealer.
I have a lot of vacation days left to use before April - weird policy where vacation isn't tied to calendar. I hate to spend them at the dealer but I'll take the tech out somewhere where we can push the car at WOT and see what they have to say.
Probably a couple of week at least until I can report on that.
Member
Joined: Dec 2014
Posts: 154
Likes: 4
From: San Francisco Bay Area
2015 C300W4, 2011 G37, 1998 528i Sport 5MT
Warning to anyone owning a W205 C300 built before April 2015: Heed the warnings in this thread. Mine did not have terrible engine noise but when I brought it in for Service A last week I asked them to check the TSB to see if it applies to my car. When they asked what I was hearing, I simply told them there is some ticking noise mostly when cold. I also admitted that I was not sure if this was abnormal or not, as I have nothing to compare it to. I asked them to check into it for themselves and let me know what they think. Two days later the dealer informed me that the pistons need to be replaced.
My advice is that everyone owning a C300 W205 take your car to your dealer with the TSB information and ask them to check it out. I printed this tread and gave it to them. When I dropped the car off, it was evident that they were taking this problem seriously, so something bad must be going on with these engines. If you are leasing, maybe you don't care. However, if you own the car you better care! Consider what replacing the pistons and possibly more due to this problem will cost when the car is off warranty.
BTW, I complained once again about wind noise and they are finally ordering acoustic glass. I also showed them the thread from this site with the German bulletin. Their attitude was much different about the issue this time around. No baloney about "they all do it" this time.
Will be interested in how this all turns out. They did tell me to keep the MB loaner until the work is complete. Looks like 2-4 weeks.
Does anyone know if the engine problem would be cause for a legitimate lemon claim in California?
My advice is that everyone owning a C300 W205 take your car to your dealer with the TSB information and ask them to check it out. I printed this tread and gave it to them. When I dropped the car off, it was evident that they were taking this problem seriously, so something bad must be going on with these engines. If you are leasing, maybe you don't care. However, if you own the car you better care! Consider what replacing the pistons and possibly more due to this problem will cost when the car is off warranty.
BTW, I complained once again about wind noise and they are finally ordering acoustic glass. I also showed them the thread from this site with the German bulletin. Their attitude was much different about the issue this time around. No baloney about "they all do it" this time.
Will be interested in how this all turns out. They did tell me to keep the MB loaner until the work is complete. Looks like 2-4 weeks.
Does anyone know if the engine problem would be cause for a legitimate lemon claim in California?
Last edited by gocal73; Jan 17, 2016 at 06:23 PM.
MBWorld Fanatic!
Joined: Aug 2004
Posts: 3,447
Likes: 333
From: Tampa, FL
2019 E450 4Matic & 2018 E400 4Matic
Warning to anyone owning a W205 C300: Heed the warnings in this thread. Mine did not have terrible engine noise but when I brought it in for Service A last week I asked them to check the TSB to see if it applies to my car. When they asked what I was hearing, I simply told them there is some ticking noise mostly when cold. I also admitted that I was not sure if this was abnormal or not, as I have nothing to compare it to. I asked them to check into it for themselves and let me know what they think. Two days later the dealer informed me that the pistons need to be replaced.
My advice is that everyone owning a C300 W205 take your car to your dealer with the TSB information and ask them to check it out. I printed this tread and gave it to them. When I dropped the car off, it was evident that they were taking this problem seriously, so something bad must be going on with these engines. If you are leasing, maybe you don't care. However, if you own the car you better care! Consider what replacing the pistons and possibly more due to this problem will cost when the car is off warranty.
BTW, I complained once again about wind noise and they are finally ordering acoustic glass. I also showed them the thread from this site with the German bulletin. Their attitude was much different about the issue this time around. No baloney about "they all do it" this time.
Will be interested in how this all turns out. They did tell me to keep the MB loaner until the work is complete. Looks like 2-4 weeks.
Does anyone know if the engine problem would be cause for a legitimate lemon claim in California?
My advice is that everyone owning a C300 W205 take your car to your dealer with the TSB information and ask them to check it out. I printed this tread and gave it to them. When I dropped the car off, it was evident that they were taking this problem seriously, so something bad must be going on with these engines. If you are leasing, maybe you don't care. However, if you own the car you better care! Consider what replacing the pistons and possibly more due to this problem will cost when the car is off warranty.
BTW, I complained once again about wind noise and they are finally ordering acoustic glass. I also showed them the thread from this site with the German bulletin. Their attitude was much different about the issue this time around. No baloney about "they all do it" this time.
Will be interested in how this all turns out. They did tell me to keep the MB loaner until the work is complete. Looks like 2-4 weeks.
Does anyone know if the engine problem would be cause for a legitimate lemon claim in California?
Member
Joined: Dec 2014
Posts: 154
Likes: 4
From: San Francisco Bay Area
2015 C300W4, 2011 G37, 1998 528i Sport 5MT
MBWorld Fanatic!
Joined: Aug 2004
Posts: 3,447
Likes: 333
From: Tampa, FL
2019 E450 4Matic & 2018 E400 4Matic
I'm not sure there will ever be a first year of any model without some issues. The good news is MB will stand behind their cars and make it right if something is wrong.
Super Member
Joined: Apr 2010
Posts: 789
Likes: 47
From: Eastern Massachusetts
2021 E450, 2020 C43, 2015 C300, 2007 C280
Calling all cars! (W205s with 2-ltr 4-cyl engines built before 04/20/15)
The date an engine was built is probably NOT the same as the production date of the car! The production date of a car can be easily obtained from the dealer. The engine production date (or the serial number of the ENGINE) has to be obtained from the Mercedes Electronic Parts Catalogue (EPC). Use of the EPC is free, but it was not made for amateurs. If this information is necessary (because a car was made around the cutoff date), I recommend that the owner not tangle with the EPC, but go straight to his or her dealer.
Newbie
Joined: Jan 2016
Posts: 1
Likes: 0
2015 Mercedes c300 4matic
Warning to anyone owning a W205 C300 built before April 2015: Heed the warnings in this thread. Mine did not have terrible engine noise but when I brought it in for Service A last week I asked them to check the TSB to see if it applies to my car. When they asked what I was hearing, I simply told them there is some ticking noise mostly when cold. I also admitted that I was not sure if this was abnormal or not, as I have nothing to compare it to. I asked them to check into it for themselves and let me know what they think. Two days later the dealer informed me that the pistons need to be replaced.
My advice is that everyone owning a C300 W205 take your car to your dealer with the TSB information and ask them to check it out. I printed this tread and gave it to them. When I dropped the car off, it was evident that they were taking this problem seriously, so something bad must be going on with these engines. If you are leasing, maybe you don't care. However, if you own the car you better care! Consider what replacing the pistons and possibly more due to this problem will cost when the car is off warranty.
BTW, I complained once again about wind noise and they are finally ordering acoustic glass. I also showed them the thread from this site with the German bulletin. Their attitude was much different about the issue this time around. No baloney about "they all do it" this time.
Will be interested in how this all turns out. They did tell me to keep the MB loaner until the work is complete. Looks like 2-4 weeks.
Does anyone know if the engine problem would be cause for a legitimate lemon claim in California?
My advice is that everyone owning a C300 W205 take your car to your dealer with the TSB information and ask them to check it out. I printed this tread and gave it to them. When I dropped the car off, it was evident that they were taking this problem seriously, so something bad must be going on with these engines. If you are leasing, maybe you don't care. However, if you own the car you better care! Consider what replacing the pistons and possibly more due to this problem will cost when the car is off warranty.
BTW, I complained once again about wind noise and they are finally ordering acoustic glass. I also showed them the thread from this site with the German bulletin. Their attitude was much different about the issue this time around. No baloney about "they all do it" this time.
Will be interested in how this all turns out. They did tell me to keep the MB loaner until the work is complete. Looks like 2-4 weeks.
Does anyone know if the engine problem would be cause for a legitimate lemon claim in California?
Senior Member
Joined: Dec 2014
Posts: 301
Likes: 19
2015 W205
So has anyone else got their car back after the rebuild. I have about 300 miles on mine since I got it back a week ago. Engine is much quieter, seems to run fine, power seems the same etc.
But my gas mileage is terrible. I have dropped about 4-5mpg vs the numbers I was getting in late November. It was warmer, but we already had the winter fuel blend so it is not that. I guess maybe it will get better as the engine breaks in again?
But my gas mileage is terrible. I have dropped about 4-5mpg vs the numbers I was getting in late November. It was warmer, but we already had the winter fuel blend so it is not that. I guess maybe it will get better as the engine breaks in again?
Super Member
Joined: May 2015
Posts: 692
Likes: 24
From: Cambridge, MA
2015 C300 Sport 4MATIC
So has anyone else got their car back after the rebuild. I have about 300 miles on mine since I got it back a week ago. Engine is much quieter, seems to run fine, power seems the same etc.
But my gas mileage is terrible. I have dropped about 4-5mpg vs the numbers I was getting in late November. It was warmer, but we already had the winter fuel blend so it is not that. I guess maybe it will get better as the engine breaks in again?
But my gas mileage is terrible. I have dropped about 4-5mpg vs the numbers I was getting in late November. It was warmer, but we already had the winter fuel blend so it is not that. I guess maybe it will get better as the engine breaks in again?
Super Member
Joined: Apr 2010
Posts: 789
Likes: 47
From: Eastern Massachusetts
2021 E450, 2020 C43, 2015 C300, 2007 C280
So has anyone else got their car back after the rebuild. I have about 300 miles on mine since I got it back a week ago. Engine is much quieter, seems to run fine, power seems the same etc.
But my gas mileage is terrible. I have dropped about 4-5mpg vs the numbers I was getting in late November. It was warmer, but we already had the winter fuel blend so it is not that. I guess maybe it will get better as the engine breaks in again?
But my gas mileage is terrible. I have dropped about 4-5mpg vs the numbers I was getting in late November. It was warmer, but we already had the winter fuel blend so it is not that. I guess maybe it will get better as the engine breaks in again?
Senior Member
Joined: Dec 2014
Posts: 301
Likes: 19
2015 W205
