E-Class (W212) 2010 - 2016: E 350, E 550
Sponsored by:
Sponsored by: CARiD

New to me 14 E350 terrible buzzing sound from passenger rear?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Jun 4, 2020 | 03:07 PM
  #1  
tpdtopcop's Avatar
Thread Starter
Member
5 Year Member
Liked
Loved
 
Joined: Jan 2020
Posts: 85
Likes: 5
Saab
New to me 14 E350 terrible buzzing sound from passenger rear?

Well my new to me month old car has a hiccup. While driving home from work there was a terrible buzzing sound, which sounded like from passenger rear inside of car. Maybe speaker? It was like interference maybe? Don't know but loud and irritating.
Reply
Old Jun 4, 2020 | 03:40 PM
  #2  
tpdtopcop's Avatar
Thread Starter
Member
5 Year Member
Liked
Loved
 
Joined: Jan 2020
Posts: 85
Likes: 5
Saab
Took the car out for another drive I’m shut the Bluetooth off on my phone and when I press the horn you could hear static through which sounds like the speakers
Reply
Old Jun 4, 2020 | 03:42 PM
  #3  
tpdtopcop's Avatar
Thread Starter
Member
5 Year Member
Liked
Loved
 
Joined: Jan 2020
Posts: 85
Likes: 5
Saab
So I am at a loss
Reply
Old Jun 4, 2020 | 04:04 PM
  #4  
LILBENZ230's Avatar
MBWorld Fanatic!
 
Joined: Jul 2008
Posts: 8,384
Likes: 800
2019 G70 6MT & 2022 Ford Maverick XL
The 14s had an issue where the speakers would sometimes melt causing all sorts of issues, can you pull that speaker out for an inspection?

Search the 212 forum for melting speakers - IIRC it seems basically isolated to the 2014.

Of course it could be something simple like grounding. Either way you’re going to need to pull the door panel to check.
Reply
Old Jun 4, 2020 | 04:06 PM
  #5  
tpdtopcop's Avatar
Thread Starter
Member
5 Year Member
Liked
Loved
 
Joined: Jan 2020
Posts: 85
Likes: 5
Saab
Originally Posted by LILBENZ230
The 14s had an issue where the speakers would sometimes melt causing all sorts of issues, can you pull that speaker out for an inspection?

Search the 212 forum for melting speakers - IIRC it seems basically isolated to the 2014.

Of course it could be something simple like grounding. Either way you’re going to need to pull the door panel to check.
Well I did smell something odd inside the cabin before this started to happen? Which speaker?
I am sure the door panel being pulled is not a simple job. Lol
Reply
Old Jun 4, 2020 | 04:43 PM
  #6  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,632
From: North Scottsdale, AZ
'71 Pinto
See attachments.
Attached Files
File Type: pdf
front door lining.pdf (317.3 KB, 136 views)
File Type: pdf
rear door lining.pdf (269.3 KB, 134 views)
File Type: pdf
rear door module.pdf (273.7 KB, 137 views)
File Type: pdf
crank window in rear door.pdf (195.2 KB, 156 views)
Reply
Old Jun 4, 2020 | 04:46 PM
  #7  
tpdtopcop's Avatar
Thread Starter
Member
5 Year Member
Liked
Loved
 
Joined: Jan 2020
Posts: 85
Likes: 5
Saab
Thanks for that. I have nailed down sound to the passenger side rear deck? Subwoofer mayb
Reply
Old Jun 4, 2020 | 06:44 PM
  #8  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,632
From: North Scottsdale, AZ
'71 Pinto
Attachments cover rear shelf. Here are parts #s if it proves to be speaker(s).






Attached Files
File Type: pdf
rear shelf.pdf (681.9 KB, 127 views)
File Type: pdf
rear seat backrest.pdf (394.8 KB, 127 views)
File Type: pdf
rear seat cushion.pdf (528.4 KB, 115 views)
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
Old Jun 4, 2020 | 07:24 PM
  #9  
tpdtopcop's Avatar
Thread Starter
Member
5 Year Member
Liked
Loved
 
Joined: Jan 2020
Posts: 85
Likes: 5
Saab
Originally Posted by konigstiger
Attachments cover rear shelf. Here are parts #s if it proves to be speaker(s).






Thanks for all the attachments
Reply
Old Jun 4, 2020 | 07:40 PM
  #10  
tpdtopcop's Avatar
Thread Starter
Member
5 Year Member
Liked
Loved
 
Joined: Jan 2020
Posts: 85
Likes: 5
Saab
Do you have part numbers for sub and amp?
Reply
Old Jun 5, 2020 | 02:30 PM
  #11  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,632
From: North Scottsdale, AZ
'71 Pinto
See post 9 above for sub, here is amp.

Reply
Old Jun 6, 2020 | 06:55 PM
  #12  
tpdtopcop's Avatar
Thread Starter
Member
5 Year Member
Liked
Loved
 
Joined: Jan 2020
Posts: 85
Likes: 5
Saab
Originally Posted by konigstiger
See post 9 above for sub, here is amp.

thanks for everything.
Reply
Old Jun 7, 2020 | 12:57 AM
  #13  
S. Madman's Avatar
Super Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2019
Posts: 681
Likes: 405
From: FL
2012 E550 sedan 2019 E63 Wagon
And pull your amplifier right now. It will continue melting speakers one by one.
Reply
Old Jun 7, 2020 | 01:10 AM
  #14  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,632
From: North Scottsdale, AZ
'71 Pinto
Amp in post 12 is for sub, here is system control amp.


Attached Files
File Type: pdf
amplifier.pdf (285.8 KB, 136 views)
File Type: pdf
212 trunk paneling.pdf (566.1 KB, 133 views)
Reply
Old Jun 7, 2020 | 07:43 AM
  #15  
LILBENZ230's Avatar
MBWorld Fanatic!
 
Joined: Jul 2008
Posts: 8,384
Likes: 800
2019 G70 6MT & 2022 Ford Maverick XL
So is that the failure method for these? Defective amps melt speakers? I thought it was something to do with ambient heat. It seems that only 2014s are affected.
Reply
Old Jun 7, 2020 | 01:11 PM
  #16  
mtnman82's Avatar
MBWorld Fanatic!
 
Joined: Dec 2005
Posts: 1,055
Likes: 50
From: SoCal. Desert
'16 E350, gone: '03 c230k
Hmmm..... The fan for the amplifier back on the rear deck can be mighty noisy at times in my 2016. I wanted to have it replaced under the new car warranty, but my work guidelines precluded me getting out of town to make an appointment and now the warranty is expired. Could you post a price for the amplifier assy if you go that route?
Reply
Old Jun 7, 2020 | 01:48 PM
  #17  
LILBENZ230's Avatar
MBWorld Fanatic!
 
Joined: Jul 2008
Posts: 8,384
Likes: 800
2019 G70 6MT & 2022 Ford Maverick XL
Originally Posted by mtnman82
Hmmm..... The fan for the amplifier back on the rear deck can be mighty noisy at times in my 2016. I wanted to have it replaced under the new car warranty, but my work guidelines precluded me getting out of town to make an appointment and now the warranty is expired. Could you post a price for the amplifier assy if you go that route?
I show the 2016 amplifier part number is 218-900-14-08 - list price is $1100 but easily found cheaper. This is a different part number than the 2014s.

I've yet to hear a fan running on mine.

The amp part number listed in the EPC that konigstiger posted 212-900-62-26 will show that it has been replaced by 212-900-86-29-80, so hopefully that means the issue is fixed?

Last edited by LILBENZ230; Jun 7, 2020 at 01:51 PM.
Reply
Old Jun 10, 2020 | 09:41 PM
  #18  
ccww's Avatar
Senior Member
 
Joined: Apr 2020
Posts: 358
Likes: 172
2015 E250 Bluetec
Originally Posted by konigstiger
Amp in post 12 is for sub, here is system control amp.

Thank you very much for the useful documents.

I am trying to figure out how to remove the anchoring lugs in the trunk as indicated in the "212 trunk paneling.pdf" document. Any help would be greatly appreciated.
Reply
Old Jun 11, 2020 | 11:49 AM
  #19  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,632
From: North Scottsdale, AZ
'71 Pinto
Carefully pry off cover to expose bolt below.



Reply
Old May 2, 2022 | 10:32 AM
  #20  
mersum1es's Avatar
Member
 
Joined: Feb 2014
Posts: 242
Likes: 18
W211 320CDI -04, W210 270CDI -01
I have same symptoms; rattling front speaker (dead now) and now frequently popping pop-pop-pop sound from rear.... BUT I don't have extra amplifier according EPC?
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 04:38 PM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE