MBWorld.org Forums

GL Class (X166) 2013-2015 after facelift became GLS (X166)

Humming Sound

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Jun 26, 2014 | 10:35 AM
Share
  #1  
baobay's Avatar
baobay
Thread Starter
Senior Member
 
Joined: May 2014
Posts: 394
Likes: 23
2024 GLS 450 AMG Package 2024 GLC 43 AMG
Humming Sound
We've had our 2014 GL450 for over a month now and are extremely happy with it. I have noticed a humming sound coming from the engine bay which lasts for about 5 minutes after turning the car off. I noticed it a while back and I don't think this is something which has developed recently. Has anyone else experienced this? thanks
Reply
0
Old Jun 26, 2014 | 12:07 PM
Share
  #2  
blittle's Avatar
blittle
MBWorld Fanatic!
 
Joined: Mar 2007
Posts: 1,653
Likes: 7
From: Central Pa.
2013 GL450 (traded for 2015 Escalade), 2012 Corvette, 2014 Ford Fusion, Previous: 2007 GL450, 2011
Originally Posted by baobay
We've had our 2014 GL450 for over a month now and are extremely happy with it. I have noticed a humming sound coming from the engine bay which lasts for about 5 minutes after turning the car off. I noticed it a while back and I don't think this is something which has developed recently. Has anyone else experienced this? thanks
I noticed similar on my previous GL's as well as my current one......as others will probably tell you, it can be various aspects of the systems involved in either HVAC, engine cooling, or the air suspension. Quite normal......
Reply
0
Old Jun 26, 2014 | 12:19 PM
Share
  #3  
SmokinReefer's Avatar
SmokinReefer
Member
 
Joined: Jan 2014
Posts: 92
Likes: 1
ML350
Is it a diesel?
Reply
0
Old Jun 26, 2014 | 12:39 PM
Share
  #4  
yk0786's Avatar
yk0786
Member
 
Joined: Mar 2014
Posts: 83
Likes: 3
From: Southeast PA
2014 GL350
I have had some humming noise come from what I felt was the back of the car after I turned the engine off. I have a diesel. I always thought it was normal. Am I mistaken?
Reply
0
Old Jun 27, 2014 | 08:06 AM
Share
  #5  
jbattan's Avatar
jbattan
Super Member
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2013
Posts: 763
Likes: 166
From: Oregon USA
2023 Mercedes EQS 580 SUV, 2023 Bentley Bentayga, 2023 Genesis GV60
Yes, my 2014 GL550 hums like this for a few minutes after turning it off. No idea what it is...
Reply
0
Old Jul 14, 2014 | 03:08 AM
Share
  #6  
S1000RR's Avatar
S1000RR
Junior Member
10 Year Member
 
Joined: Apr 2014
Posts: 32
Likes: 0
S1000RR
Just got my 2014 GL450 and it hums as well. Probably all the electronics that are still working,.
Reply
0
Old Jul 14, 2014 | 01:43 PM
Share
  #7  
Elric99's Avatar
Elric99
Member
10 Year Member
 
Joined: Mar 2013
Posts: 127
Likes: 3
2014 GL450
My guess is it's the oil pump circulating oil to cool the turbos down.
Reply
0

Trending Topics

Old Jul 16, 2014 | 09:29 AM
Share
  #8  
JimBarnhart's Avatar
JimBarnhart
MBWorld Fanatic!
 
Joined: Nov 2007
Posts: 1,425
Likes: 2
From: Minnesota
2015 Ram 2500, former 2013 GL350, 2007 GL450
Originally Posted by Elric99
My guess is it's the oil pump circulating oil to cool the turbos down.
+1, your Mercedes circulates oil after you shut off the engine to keep it from burning in place.
Reply
0
MB World Stories

The Best of Mercedes & AMG

story-0

7 Craziest Things AMG Gas Ever Built

 Verdad Gallardo
story-1

New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

 Verdad Gallardo
story-2

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

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-6

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-7

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

 Verdad Gallardo
story-8

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

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Jul 16, 2014 | 09:14 PM
Share
  #9  
screw991le's Avatar
screw991le
Senior Member
 
Joined: Apr 2014
Posts: 396
Likes: 7
From: Revere Beach
2010 E63 AMG
Sounds normal, the best sound is the pssst, after you turn the car off and are waxing or something and the suspension hisses and pssst'd at you. Though I was crazy when I first heard it.
Reply
0
Old Jul 30, 2014 | 05:43 PM
Share
  #10  
blittle's Avatar
blittle
MBWorld Fanatic!
 
Joined: Mar 2007
Posts: 1,653
Likes: 7
From: Central Pa.
2013 GL450 (traded for 2015 Escalade), 2012 Corvette, 2014 Ford Fusion, Previous: 2007 GL450, 2011
Originally Posted by screw991le
Sounds normal, the best sound is the pssst, after you turn the car off and are waxing or something and the suspension hisses and pssst'd at you. Though I was crazy when I first heard it.
Love it!
Reply
0
Old Aug 2, 2014 | 04:01 PM
Share
  #11  
Elric99's Avatar
Elric99
Member
10 Year Member
 
Joined: Mar 2013
Posts: 127
Likes: 3
2014 GL450
Anyone ever hear a sound coming from rear wheel area if you turn the car off and hop quickly out, sounds like an electric screwdriver or drill turning for about 1 second. I get this randomly on my GL450 maybe like once a month. Pretty loud.
Reply
0
Old Aug 6, 2014 | 02:30 PM
Share
  #12  
blittle's Avatar
blittle
MBWorld Fanatic!
 
Joined: Mar 2007
Posts: 1,653
Likes: 7
From: Central Pa.
2013 GL450 (traded for 2015 Escalade), 2012 Corvette, 2014 Ford Fusion, Previous: 2007 GL450, 2011
Originally Posted by Elric99
Anyone ever hear a sound coming from rear wheel area if you turn the car off and hop quickly out, sounds like an electric screwdriver or drill turning for about 1 second. I get this randomly on my GL450 maybe like once a month. Pretty loud.
Haven't heard that one....
Reply
0
Old Aug 6, 2014 | 03:33 PM
Share
  #13  
JimBarnhart's Avatar
JimBarnhart
MBWorld Fanatic!
 
Joined: Nov 2007
Posts: 1,425
Likes: 2
From: Minnesota
2015 Ram 2500, former 2013 GL350, 2007 GL450
Originally Posted by Elric99
Anyone ever hear a sound coming from rear wheel area if you turn the car off and hop quickly out, sounds like an electric screwdriver or drill turning for about 1 second. I get this randomly on my GL450 maybe like once a month. Pretty loud.
I have heard that, something to do with the suspension. I've thought it was lowering to let me out and I am too quick for it.
Reply
0
Old Aug 6, 2014 | 03:47 PM
Share
  #14  
baobay's Avatar
baobay
Thread Starter
Senior Member
 
Joined: May 2014
Posts: 394
Likes: 23
2024 GLS 450 AMG Package 2024 GLC 43 AMG
never heard that
Reply
0
Old Sep 20, 2021 | 10:19 PM
Share
  #15  
6172crew's Avatar
6172crew
Member
Veteran: Marine Corps
 
Joined: Oct 2017
Posts: 216
Likes: 17
From: Boerne TX
E63 and GL450, ML350 bluetec
It might be a EVAP fan. The Toyota Tacoma does it when it pushes fuel fumes from the fuel tank to charcoal filter.
Reply
0
Old Dec 15, 2025 | 06:57 PM
Share
  #16  
Junior15's Avatar
Junior15
Junior Member
 
Joined: Feb 2022
Posts: 20
Likes: 0
X166
Is this the sound your speaking about ? I hear it in the cabin while I’m driving also.



does anyone else here it while they drive ? When music is off , if course. Slight humming.


I changed all the coolant lines recently and reservoir. They were all deteriorating. Was curious to know if it’s related to the coolant line.
Attached Files
File Type: mov
IMG_7489.mov (12.55 MB, 5 views)
Reply
0
Old Jan 18, 2026 | 10:16 AM
Share
  #17  
qxron's Avatar
qxron
Member
10 Year Member
Photogenic
Liked
Loved
 
Joined: Dec 2015
Posts: 163
Likes: 28
From: USA
2021 GLS580
Originally Posted by Junior15
Is this the sound your speaking about ? I hear it in the cabin while I’m driving also.



does anyone else here it while they drive ? When music is off , if course. Slight humming.


I changed all the coolant lines recently and reservoir. They were all deteriorating. Was curious to know if it’s related to the coolant line.
You're hearing this only AFTER replacing the lines? Never before?
Reply
0
Tags
Back to Subforum
GL Class (X166)
View Next Unread
2015 GL63 - Door Clicking/Cracking Noise When Opening/Closing

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


You have already rated this thread Rating: Thread Rating: 0 votes, average.
Show Printable Version
Email this Page

Advanced Search

All times are GMT -4. The time now is 02:32 PM.

story-0
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-1
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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