When static, my GLC makes all kinds of groans, huffs, pings, clicks ect. ect.
Weird sound when opening the door, cold car, before starting the engine
Thread Starter
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Joined: Mar 2015
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2015 c300 4matic
Weird sound when opening the door, cold car, before starting the engine
Hi guys,
My wife got a 2017 GLC300 (the base + blind spot) a few weeks ago. We noticed that in the morning when she first unlocks the car and opens the door, there's a sound that will persists for about 30 seconds. It only happens when the car is cold, and if she closes the door, locks it and then unlocks it, the sound will NOT occur. And if it's after a drive it will not occur either.
We're guessing it is something warming up. But I got a 2015 C-300 and it doesn't make the same sound. (The only two differences (electrical) between our cars would be the rearview camera and the pre-wired garmin.)
We showed the recording to the dealership and they didn't think it's serious... but wanted to know about your opinions...
Below is the recording.
Thanks,
jordyun
My wife got a 2017 GLC300 (the base + blind spot) a few weeks ago. We noticed that in the morning when she first unlocks the car and opens the door, there's a sound that will persists for about 30 seconds. It only happens when the car is cold, and if she closes the door, locks it and then unlocks it, the sound will NOT occur. And if it's after a drive it will not occur either.
We're guessing it is something warming up. But I got a 2015 C-300 and it doesn't make the same sound. (The only two differences (electrical) between our cars would be the rearview camera and the pre-wired garmin.)
We showed the recording to the dealership and they didn't think it's serious... but wanted to know about your opinions...
Below is the recording.
Thanks,
jordyun
Super Member
Joined: Jan 2014
Posts: 761
Likes: 90
From: right to be forgotten
right to be forgotten
LOL I never surprises me the number of sounds these cars make when you start, stop, open and close doors. My GL used to huff and puff like a dragon, then make snake like noise (air suspension), and clicking of relays. Sometimes ages after something happened. No idea what goes on in those computers but they never sleep.
Thread Starter
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2015 c300 4matic
I actually don't remember what this noise was... I tried to find the recording but I can't find it either. I think I get used to this now, after 7 years 
And if I need to guess I think it's the rearview camera warming up.
If I remember I'll try to see if the car still makes this noise tomorrow.
And if I need to guess I think it's the rearview camera warming up.If I remember I'll try to see if the car still makes this noise tomorrow.
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GLC Coupe
Hi Jordyun,
Thank you for reply ... for me the problem is when I open the door that noise appears as you described above (only in the morning appear when is cold outside)... I was curious what was the problem in your case.
I will go to the Mercedes workshop to see what the problem is.
Thank you for reply ... for me the problem is when I open the door that noise appears as you described above (only in the morning appear when is cold outside)... I was curious what was the problem in your case.
I will go to the Mercedes workshop to see what the problem is.
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MBWorld God!
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I actually don't remember what this noise was... I tried to find the recording but I can't find it either. I think I get used to this now, after 7 years And if I need to guess I think it's the rearview camera warming up.
If I remember I'll try to see if the car still makes this noise tomorrow.
And if I need to guess I think it's the rearview camera warming up.If I remember I'll try to see if the car still makes this noise tomorrow.
Like others mentioned, it was probably the fuel pump priming. As for the video you want to find, it says your video is private so if you still have the youtube account you can go to that video and login and see if you have access to the video.
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GLC Coupe
If it didn't get worse after 7 years, it was probably normal : ) otherwise you would be getting all sorts of codes or lights.
Like others mentioned, it was probably the fuel pump priming. As for the video you want to find, it says your video is private so if you still have the youtube account you can go to that video and login and see if you have access to the video.
Like others mentioned, it was probably the fuel pump priming. As for the video you want to find, it says your video is private so if you still have the youtube account you can go to that video and login and see if you have access to the video.
MBWorld God!
Joined: Dec 2019
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Newbie
Joined: Nov 2023
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GLC Coupe
The noise appears in the morning when it's cold outside ... after unlocking the car and opening the driver's door (without anything running - engine, etc.)
If I start the car immediately, the noise persists for a while (tens of seconds) after which it stops. During the day, this problem does not occur until the next day.
I suspect that the problem is related to the cold outside. When there were warmer nights, this problem did not appear, since it got cold the problem appears every morning.
Thanks for the opinions!
If I start the car immediately, the noise persists for a while (tens of seconds) after which it stops. During the day, this problem does not occur until the next day.
I suspect that the problem is related to the cold outside. When there were warmer nights, this problem did not appear, since it got cold the problem appears every morning.
Thanks for the opinions!
MBWorld God!
Joined: Dec 2019
Posts: 32,499
Likes: 6,347
The noise appears in the morning when it's cold outside ... after unlocking the car and opening the driver's door (without anything running - engine, etc.)
If I start the car immediately, the noise persists for a while (tens of seconds) after which it stops. During the day, this problem does not occur until the next day.
I suspect that the problem is related to the cold outside. When there were warmer nights, this problem did not appear, since it got cold the problem appears every morning.
Thanks for the opinions!
If I start the car immediately, the noise persists for a while (tens of seconds) after which it stops. During the day, this problem does not occur until the next day.
I suspect that the problem is related to the cold outside. When there were warmer nights, this problem did not appear, since it got cold the problem appears every morning.
Thanks for the opinions!
Hmmm, never heard that before. Sounds like a cricket or wasp but not really, I wouldn't say that is normal, so 10 seconds, is it only audible in the cabin or you can hear it outside, if you can hear it outside, at what location is the loudest?
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GLC Coupe
Sorry for the late reply, haven't been checking the forums lately.
Hmmm, never heard that before. Sounds like a cricket or wasp but not really, I wouldn't say that is normal, so 10 seconds, is it only audible in the cabin or you can hear it outside, if you can hear it outside, at what location is the loudest?
Hmmm, never heard that before. Sounds like a cricket or wasp but not really, I wouldn't say that is normal, so 10 seconds, is it only audible in the cabin or you can hear it outside, if you can hear it outside, at what location is the loudest?
I lifted the hood of the engine and it is heard but it is not very clear where it is coming from - I will go to the Mercedes workshop in the next few days for investigations!
MBWorld God!
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