GLE Class (W166) Produced 2015-2019

When I drive downhill at a certain spot, I hear extra noise maybe from the engine.

Old Dec 26, 2023 | 04:37 PM
  #1  
GLE400XL's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2022
Posts: 23
Likes: 3
MB 2019 GLE400, BMW 2025 530i xDrive
When I drive downhill at a certain spot, I hear extra noise maybe from the engine.

There is a slope about 20 miles away from my house, downhill, about 100 ft long, not that steep, I need to press the brake when I drive by there.
Last year, when I drove there, I slowed down and pressed the brake, then I heard loud noise seems came from the engine
After about 100 ft, it was gone. Since it happened suddenly, I was not sure where the noise came from. Later, I though it may came from a nearby pickup trunk or loud car or something.
Three days ago, I drove by the same spot, again, I heard loud noise seems from the engine. I pulled over, and the noise is gone.
This never happened at other downhill roads.
My question is: am I paranoid, or, the engine will do something under certain condition?
Reply
Old Jan 2, 2024 | 05:15 AM
  #2  
amusa's Avatar
Super Member
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2007
Posts: 501
Likes: 138
From: Washington D.C. area
16 GLE400 4matic
The noise only comes on when you hit the brakes? What did the noise sound like? When you don't hit the brakes does it make any noises at that same spot?
Reply
Old Jan 8, 2024 | 04:21 PM
  #3  
GLE400XL's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2022
Posts: 23
Likes: 3
MB 2019 GLE400, BMW 2025 530i xDrive
Originally Posted by amusa
The noise only comes on when you hit the brakes? What did the noise sound like? When you don't hit the brakes does it make any noises at that same spot?
Yes.
The noise is like a loud pickup truck besides you. But not that loud.
I have to hit the brake because the slope is kind of steep, and it is a curve.
Reply
Old Jan 11, 2024 | 05:16 AM
  #4  
W205C43PFL's Avatar
MBWorld God!
 
Joined: Dec 2019
Posts: 32,505
Likes: 6,347
Hmmm, what kind of slope is it, is it a rapid descend?
Reply
Old Jan 12, 2024 | 05:26 AM
  #5  
amusa's Avatar
Super Member
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2007
Posts: 501
Likes: 138
From: Washington D.C. area
16 GLE400 4matic
Originally Posted by GLE400XL
Yes.
The noise is like a loud pickup truck besides you. But not that loud.
I have to hit the brake because the slope is kind of steep, and it is a curve.
You sure the DSR (Downhill Speed Regulation) is turned off?
Reply

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

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 12:52 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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