Why does my car make these noises when parked?
Thread Starter
Junior Member
Joined: Aug 2023
Posts: 69
Likes: 23
From: SW Florida
2023 GLC 300W AMG, Pinnacle, white
Why does my car make these noises when parked?
My X254 makes noises every few seconds when parked in the garage. It is an electronic whining, whirring sound coming from the front grille.
It happens whether locked or unlocked, and whether or not I have the key nearby. It eventually stops I think, but then the battery shows "partially charged"
I made a 2 second sound recording which is difficult to hear, but it's there as an ascending and descending tone:
GLC Sound
What is going on here?
It happens whether locked or unlocked, and whether or not I have the key nearby. It eventually stops I think, but then the battery shows "partially charged"
I made a 2 second sound recording which is difficult to hear, but it's there as an ascending and descending tone:
GLC Sound
What is going on here?
Senior Member
Joined: Dec 2007
Posts: 268
Likes: 3
From: Jersey
2023 GLC 300 SUV, 2006 BMW Z4M Roadster, 2006 Lexus RX400h
Is your remote on you? Mine makes strange noises if I have the remote in my pocket. Try leaving it somewhere else and see if you still hear it.
Member
Joined: Nov 2009
Posts: 245
Likes: 244
'20 GLS450, '17 S550 Sedan
My X254 makes noises every few seconds when parked in the garage. It is an electronic whining, whirring sound coming from the front grille.
I made a 2 second sound recording which is difficult to hear, but it's there as an ascending and descending tone. What is going on here?
I made a 2 second sound recording which is difficult to hear, but it's there as an ascending and descending tone. What is going on here?
I'm still laughing at @guitarplayer 's suggestion of involving clergy... I'll try anything to get a car noise to stop!
Good luck!
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBWorld Fanatic!
Joined: Oct 2019
Posts: 5,155
Likes: 1,769
From: Colorado
G550
My 2019 G550 is always making noises when parked. Since I drive it only once a week, I keep a 1 amp charger connected to its battery during winter months. This "never shut off" state is one of the most annoying "features" of contemporary vehicles. Can't understand why designers think this is cool.
Member
Joined: Dec 2013
Posts: 168
Likes: 30
From: USA, WA
2006 C55, 2024 GLC300 SUV
may be related to some aux water pump for 48v battery https://www.glcforums.com/threads/gl...241/post-62442
MBWorld Fanatic!
Joined: Oct 2019
Posts: 5,155
Likes: 1,769
From: Colorado
G550
may be related to some aux water pump for 48v battery https://www.glcforums.com/threads/gl...241/post-62442
MBWorld Fanatic!
Joined: Feb 2010
Posts: 1,205
Likes: 272
From: North CA
2021 E63S and 2025 GT63
may be related to some aux water pump for 48v battery https://www.glcforums.com/threads/gl...241/post-62442
Member
Joined: Dec 2013
Posts: 168
Likes: 30
From: USA, WA
2006 C55, 2024 GLC300 SUV
MBWorld Fanatic!
Joined: Sep 2016
Posts: 1,189
Likes: 187
From: TX
2023 GLE3502W, 2024 GLC3002W, 1967 Pontiac GTO 4 sp (sold...sniff)
Here is your noise. Same on my 2024. Volume up. Heard it first when I opened the door after the car sat all night. Heard it again about 2 minutes later. Car had not been started. Waited a while and had the phone camera ready. Opened the door and it made the sound. This car has all kinds of weird (possessed) things. Sometimes when I open the door after it sat all night, air starts coming out of the vents. I haven't done anything except sit in the driver's seat. The parking brake sticks and makes an awful sound when I first back up. Taken to releasing the brake manually. Hands free trunk kick works about 2 out of 5 times. But no squeaks or rattles when underway.
MBWorld God!
Joined: Dec 2019
Posts: 32,406
Likes: 6,338
Here is your noise. Same on my 2024. Volume up. Heard it first when I opened the door after the car sat all night. Heard it again about 2 minutes later. Car had not been started. Waited a while and had the phone camera ready. Opened the door and it made the sound. This car has all kinds of weird (possessed) things. Sometimes when I open the door after it sat all night, air starts coming out of the vents. I haven't done anything except sit in the driver's seat. The parking brake sticks and makes an awful sound when I first back up. Taken to releasing the brake manually. Hands free trunk kick works about 2 out of 5 times. But no squeaks or rattles when underway.
https://youtube.com/shorts/Tb-CsfopUT4?feature=share
https://youtube.com/shorts/Tb-CsfopUT4?feature=share
Newbie
Joined: Oct 2024
Posts: 7
Likes: 0
Mercedes GLC 200
My X254 makes noises every few seconds when parked in the garage. It is an electronic whining, whirring sound coming from the front grille.
It happens whether locked or unlocked, and whether or not I have the key nearby. It eventually stops I think, but then the battery shows "partially charged"
I made a 2 second sound recording which is difficult to hear, but it's there as an ascending and descending tone:
GLC Sound
What is going on here?
It happens whether locked or unlocked, and whether or not I have the key nearby. It eventually stops I think, but then the battery shows "partially charged"
I made a 2 second sound recording which is difficult to hear, but it's there as an ascending and descending tone:
GLC Sound
What is going on here?
One of them is like a compressor when it is emptied of air.
According to the dealership, the plug-in hybrids make these noises, which doesn't worry me.
MBWorld Fanatic!
Joined: Oct 2019
Posts: 5,155
Likes: 1,769
From: Colorado
G550
My '19 G550 hick-ups, burps and farts also while parked. My guess is that it's running baseline diagnostics on sensors and actuators that can't be tested when the ignition is on and the car is running. Although maybe it's talking to me -- one of the noises did sound like "Guten tag" (lol).
Newbie
Joined: Oct 2024
Posts: 1
Likes: 0
2025 GLC 300 4Matic
I had a 2022 GLC 300 4-matic that always made those sounds after I exited it. IDK but I figured it was setting the sensors, cameras for the towing and accident protection. I'm not sure though.
Now I have 2025 GLC 300 with the Pinnacle package. It sometimes makes noises as I approach it. Again, I'm not sure but maybe it's sensing objects nearby and readies the cameras, as it can take video if someone tries to mess with it.
Now I have 2025 GLC 300 with the Pinnacle package. It sometimes makes noises as I approach it. Again, I'm not sure but maybe it's sensing objects nearby and readies the cameras, as it can take video if someone tries to mess with it.
Super Member
Joined: Oct 2012
Posts: 583
Likes: 24
2026 GLC300 4Matic (X254)
I noticed my 2025 makes intermittent noises from the front when car is recently turned off. Yesterday I turned car off and noticed a constant noise at the back of the car. Like a solid whirring noise. It eventually stopped. I'm thinking fuel related as I could really hear it near the gas filler opening area. As long as they don't drain the sensitive batteries!
Member
Joined: Dec 2013
Posts: 168
Likes: 30
From: USA, WA
2006 C55, 2024 GLC300 SUV
