Mercedes EQC 400 Squeaking / Whistling Noise
Thread Starter
Newbie
Joined: Feb 2022
Posts: 4
Likes: 0
Mercedes EQC 400 2021
Mercedes EQC 400 Squeaking / Whistling Noise
Hi,
My Mercedes EQC 400 is not even a year old with only 10,000km on it. There is a very annoying squeaking / whistling that happens at slow speeds. It started only happening when turning to the right and usually when going slightly uphill. However as you will see from the YouTube video, its now happening even when going straight and at times when turning left.
This happens both after using the car throughout the day and even just after the car has started after being parked all night.
The dealership has tried fixing it 3 times now but to be honest, nothing has been replaced...only taken apart and put back together after some cleaning/lubricant and slight adjustments. It's also not clear from which wheel this is coming from. The assumption is that it is brake related but nobody has any idea what it might be exactly.
Any ideas?
Cheers
My Mercedes EQC 400 is not even a year old with only 10,000km on it. There is a very annoying squeaking / whistling that happens at slow speeds. It started only happening when turning to the right and usually when going slightly uphill. However as you will see from the YouTube video, its now happening even when going straight and at times when turning left.
This happens both after using the car throughout the day and even just after the car has started after being parked all night.
The dealership has tried fixing it 3 times now but to be honest, nothing has been replaced...only taken apart and put back together after some cleaning/lubricant and slight adjustments. It's also not clear from which wheel this is coming from. The assumption is that it is brake related but nobody has any idea what it might be exactly.
Any ideas?
Cheers
Super Member
Joined: Aug 2004
Posts: 954
Likes: 245
E550 Coupe 2wd (2016)
I cant really hear it in the vid, but I had a similar issue once. I was a bolt that was just kissing the brake rotor so as the suspension moved and especially as the car leaned on that side during turns, it would scrape.
Since you can hear it I guess Id try to see what makes it worse and maybe get a passenger to look while you drive? If it were me Id see if I can make it do it with car off? Meaning pushing on it in all directions with and without the parking brake on. Might get lucky. Id also torque load the eng to make it move. Open the hood, hold brake, put in 1st gear and give it gas for a sec. quarter throttle i spoze. You can see the eng move. Repeat in R to move it the other way. This moves lots of things to find issues. Its also how you check for bad motor mounts.
Since you can hear it I guess Id try to see what makes it worse and maybe get a passenger to look while you drive? If it were me Id see if I can make it do it with car off? Meaning pushing on it in all directions with and without the parking brake on. Might get lucky. Id also torque load the eng to make it move. Open the hood, hold brake, put in 1st gear and give it gas for a sec. quarter throttle i spoze. You can see the eng move. Repeat in R to move it the other way. This moves lots of things to find issues. Its also how you check for bad motor mounts.
