Vibration at 45
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Joined: Sep 2011
Posts: 1,522
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From: East Texas
2004 Volvo XC70; 2012 GLK 350 4matic
Is the sunroof open and the side windows closed? I ask because our Volvo XC70 is unbearable from 20mph to 30mph with the sunroof open and the side windows closed. I have to crack open the side windows to disrupt the horrible drumming in my ears. Probably unrelated to your problem.
Wayne
Wayne
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Joined: Jul 2003
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From: Lake Oswego, OR
2020 GLE 450; 2023 BMW M2 Coupe
Pulsing cabin pressure
Member
Joined: Mar 2008
Posts: 110
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From: Walnut Creek, CA
2013 Audi A8 Sport
Sorry to hear about the noise issue with your ML, KD. Greg, thanks for the link to the other forum.
Can I ask when yours was built? Has MB fixed this issue or even acknowledged that it exists?
And just to clarify, when you hit speeds over ~45mph, does the noise go eventually go away or is that just when it starts?
Can I ask when yours was built? Has MB fixed this issue or even acknowledged that it exists?
And just to clarify, when you hit speeds over ~45mph, does the noise go eventually go away or is that just when it starts?
Thread Starter
Senior Member
Joined: Oct 2011
Posts: 357
Likes: 0
2012 ML 350 BlueTec
Sorry to hear about the noise issue with your ML, KD. Greg, thanks for the link to the other forum.
Can I ask when yours was built? Has MB fixed this issue or even acknowledged that it exists?
And just to clarify, when you hit speeds over ~45mph, does the noise go eventually go away or is that just when it starts?
Can I ask when yours was built? Has MB fixed this issue or even acknowledged that it exists?
And just to clarify, when you hit speeds over ~45mph, does the noise go eventually go away or is that just when it starts?
If i had to guess, and that's all it is, is I would say its a drive line resonance vibration. Funny thing is it didn't happen until they did a transmission reprogram at 1500. At least I didn't notice it till after that. I took the dealer for a ride and demonstrated it to them after they said they can't duplicate it. It seems now they acknowledge it and tried to fix it but didn't test drive it after to see if the fix worked.
Member
Joined: Mar 2008
Posts: 110
Likes: 0
From: Walnut Creek, CA
2013 Audi A8 Sport
Mine was built on 12/12/11. The dealer did a road force balance on the wheels/tires. It did not correct the problem. To clarify, there is no noise associated with it, it is just a pulsating sensation on your ear drums. Sort of like if one window is open at speed. And it only happens at about 45. Doesn't happen before 45 and goes away after 45.
If i had to guess, and that's all it is, is I would say its a drive line resonance vibration. Funny thing is it didn't happen until they did a transmission reprogram at 1500. At least I didn't notice it till after that. I took the dealer for a ride and demonstrated it to them after they said they can't duplicate it. It seems now they acknowledge it and tried to fix it but didn't test drive it after to see if the fix worked.
If i had to guess, and that's all it is, is I would say its a drive line resonance vibration. Funny thing is it didn't happen until they did a transmission reprogram at 1500. At least I didn't notice it till after that. I took the dealer for a ride and demonstrated it to them after they said they can't duplicate it. It seems now they acknowledge it and tried to fix it but didn't test drive it after to see if the fix worked.
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