2012 E350 Left Turn Braking Yields Click Noise
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E350
2012 E350 Left Turn Braking Yields Click Noise
I always make a left turn into my parking spot. Recently, I noticed every time my steering wheel is turned left ... at the very end of coming to a complete stop ... there is a loud clicking sound.
This noise does not exist when the steering wheel is straight OR when then steering wheel is turned to the right ... when coming to a complete stop.
Here's a video which captures this issue:
Mercedes dealership kept my car for 4 days trying to identify the issue, but with no luck.
Any ideas?
This noise does not exist when the steering wheel is straight OR when then steering wheel is turned to the right ... when coming to a complete stop.
Here's a video which captures this issue:
Mercedes dealership kept my car for 4 days trying to identify the issue, but with no luck.
Any ideas?
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Joined: Nov 2012
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E350
I do not have adaptive lights.
The noise started happening very recently. I originally heard something with all windows closed... with the windows down (as you can see from the video), it's even louder.
Would the fluid pump make a single loud click noise?
The noise can be heard right after the car comes to a complete stop when the steering wheel is turned to the left. I originally thought it was brakes, maybe suspension --- but the dealership "checked" these areas and can't find anything.
The noise started happening very recently. I originally heard something with all windows closed... with the windows down (as you can see from the video), it's even louder.
Would the fluid pump make a single loud click noise?
The noise can be heard right after the car comes to a complete stop when the steering wheel is turned to the left. I originally thought it was brakes, maybe suspension --- but the dealership "checked" these areas and can't find anything.
Last edited by Chen Fang; Dec 9, 2014 at 04:37 PM.
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Joined: Oct 2010
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From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
I do not have adaptive lights.
The noise started happening very recently. I originally heard something with all windows closed... with the windows down (as you can see from the video), it's even louder.
Would the fluid pump make a single loud click noise?
The noise can be heard right after the car comes to a complete stop when the steering wheel is turned to the left. I originally thought it was brakes, maybe suspension --- but the dealership "checked" these areas and can't find anything.
The noise started happening very recently. I originally heard something with all windows closed... with the windows down (as you can see from the video), it's even louder.
Would the fluid pump make a single loud click noise?
The noise can be heard right after the car comes to a complete stop when the steering wheel is turned to the left. I originally thought it was brakes, maybe suspension --- but the dealership "checked" these areas and can't find anything.
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
If the noise happens when the car is at a stop, it's hard to believe it's something related to wheels or suspension...
I'm still thinking something with the steering mechanism and power steering system:
Watch his video again, when he comes to a stop with the wheel all the way left, you hear a loud click and then the ticking noise... That's something motorized associated with turning left ...
With all these "sound sensors" I hear some dealership technicians using, I'm surprised they gave you the car back without a diagnosis ... Try slowly driving with the hood open and once the noise starts, put it in park or brake hold and the rue and isolate WHERE in the engine bay it's coming from... Better with someone else driving for safety purposes
Go to another dealership
I'm still thinking something with the steering mechanism and power steering system:
Watch his video again, when he comes to a stop with the wheel all the way left, you hear a loud click and then the ticking noise... That's something motorized associated with turning left ...
With all these "sound sensors" I hear some dealership technicians using, I'm surprised they gave you the car back without a diagnosis ... Try slowly driving with the hood open and once the noise starts, put it in park or brake hold and the rue and isolate WHERE in the engine bay it's coming from... Better with someone else driving for safety purposes
Go to another dealership
Last edited by PeterUbers; Dec 9, 2014 at 10:10 PM.
MBWorld Fanatic!
Joined: Oct 2010
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From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
If the noise happens when the car is at a stop, it's hard to believe it's something related to wheels or suspension...
I'm still thinking something with the steering mechanism and power steering system:
Watch his video again, when he comes to a stop with the wheel all the way left, you hear a loud click and then the ticking noise... That's something motorized associated with turning left ...
With all these "sound sensors" I hear some dealership technicians using, I'm surprised they gave you the car back without a diagnosis ... Try slowly driving with the hood open and once the noise starts, put it in park or brake hold and the rue and isolate WHERE in the engine bay it's coming from... Better with someone else driving for safety purposes
Go to another dealership
I'm still thinking something with the steering mechanism and power steering system:
Watch his video again, when he comes to a stop with the wheel all the way left, you hear a loud click and then the ticking noise... That's something motorized associated with turning left ...
With all these "sound sensors" I hear some dealership technicians using, I'm surprised they gave you the car back without a diagnosis ... Try slowly driving with the hood open and once the noise starts, put it in park or brake hold and the rue and isolate WHERE in the engine bay it's coming from... Better with someone else driving for safety purposes
Go to another dealership
In my own car I have a slight noise like on the video. It was found when I had my tires balanced. On both front wheels I can make a sound like this when rocking the wheel sideways. It is very mild and at the MB dealer service they did not think it is a problem and it has not caused any pull in steering or wear on tires but it makes noise as explained above. I have not checked if it does when wheels are turned all the way when stopping though.
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Out Of Control!!
Joined: Jun 2004
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Arrie, now I see your point
Gives me another idea
Op--- come to a stop while in drive and then hold one foot on the brakes while wheel locked to left, then apply accelerator softly while brakes completely applied... If frequency of noise goes up, Arrie is right...
Gives me another idea
Op--- come to a stop while in drive and then hold one foot on the brakes while wheel locked to left, then apply accelerator softly while brakes completely applied... If frequency of noise goes up, Arrie is right...
Last edited by PeterUbers; Dec 9, 2014 at 11:16 PM.
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MBWorld Fanatic!
Joined: Oct 2010
Posts: 5,141
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From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
This is not exactly the same as stopping the car front does not move vertically but could be a good way to re-produce the sound to localize the source for it.
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I watched the video many times before my post. I only hear one noise and it seems it happens when the car front raises back up right after the stop. Stopping the car with wheels turned puts sideways tipping force on the wheels that is carried by the ball joints.
In my own car I have a slight noise like on the video. It was found when I had my tires balanced. On both front wheels I can make a sound like this when rocking the wheel sideways. It is very mild and at the MB dealer service they did not think it is a problem and it has not caused any pull in steering or wear on tires but it makes noise as explained above. I have not checked if it does when wheels are turned all the way when stopping though.
In my own car I have a slight noise like on the video. It was found when I had my tires balanced. On both front wheels I can make a sound like this when rocking the wheel sideways. It is very mild and at the MB dealer service they did not think it is a problem and it has not caused any pull in steering or wear on tires but it makes noise as explained above. I have not checked if it does when wheels are turned all the way when stopping though.
When you stop the car completely, the suspensions compensate for the remaining forward acceleration in the car. When the body of the car gets pulled to a stop -- your body (and everything in the car) slightly moves forward a bit and then back a bit. The noise is most evident in that few milliseconds after the car comes to a complete stop, when your body is moving backwards.
The most curious thing is -- this noise only repros when the steering wheel is turned to the left, not straight or to the right.
Can you try reproing this issue with your car? Find an empty parking lot and do a few left turns & brakes with your windows down. Then do a few right turns & brakes. Finally steering wheel straight & brakes.
