R-Class (W251) Produced 2006-2013: R320CDI, R350, R420CDI, R500

Interior noise when driving

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Old 10-15-2006, 01:22 PM
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Interior noise when driving

I got my new R350 this week, whe I driving there are some noise inside the back door that is quite bothering me...seems like the assembly were not goods enough..anyone hv this experience?
Old 10-15-2006, 07:57 PM
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My Parents-06s500-just sold,06CLS55-K4,2006 R350
Was it on the highway that you heard this noise? I have heard a noise there too at about 80-95 and then goes away
Old 10-16-2006, 11:58 AM
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not only on highway but daily driving as well....i m quite disappointed with the quality control of the R350...with this price ...should be better than my E..

will take back to MB service to check that out...
Old 10-18-2006, 10:57 AM
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1995 E320 Kombi, 2006 R350 Pewter/Black
noise

Make sure your very back rear windows are not open, they just vent open and it is very easy to not notice they are open. The controls are on the drivers door, bottom set of buttons. I find the car to be very quite in all conditions.
Old 10-31-2006, 02:13 PM
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2006 R350
I have the same problem. Sounds like air leaking in from the passenger side rear door window. My back windows are all closed. Must be a common issue. Let me know if the dealer can resolve it for you and if so what the fix was. It's quite annoying.
Old 10-31-2006, 05:10 PM
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Do the two of you have 3rd row A/C? If so check and see if the vents are all the way opened/closed. I have seen cases where the 3rd row vents not being all the way opened/closed will cause a hissing noise.
Old 10-31-2006, 06:11 PM
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2006 R350
No...I don't have that option. I also confirmed the noise exists with the climate control system turned off.
Old 09-14-2007, 07:37 PM
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Originally Posted by not_too_shabby
No...I don't have that option. I also confirmed the noise exists with the climate control system turned off.
I have the problem w/ our '07 R350. I took it in to the dealer for our first service and informed them of the problem. They kept the car for two days and told me that "the noise was normal for this vehicle and is an operational characteristic of this vehicle" and that it occurs on all R class. What a bunch of bull! Does this indeed happen to all R class owners? If so, I am going forward w/ a formal complaint based on the Lemon law. I believe this is a manufacturer flaw and is unacceptable for the amount we pay to own this vehicle.
Old 09-17-2007, 07:47 AM
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2004 SL500, 2007 R350 Sport
Nup, mine's quiet at all speeds.
Old 09-18-2007, 03:59 PM
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2007 R-500
Originally Posted by tlu603
I have the problem w/ our '07 R350. I took it in to the dealer for our first service and informed them of the problem. They kept the car for two days and told me that "the noise was normal for this vehicle and is an operational characteristic of this vehicle" and that it occurs on all R class. What a bunch of bull! Does this indeed happen to all R class owners? If so, I am going forward w/ a formal complaint based on the Lemon law. I believe this is a manufacturer flaw and is unacceptable for the amount we pay to own this vehicle.
Mine's a few weeks old, now showing about 3k miles. Drove from Woodbridge, VA to Charleston, SC last weekend. Cruised between 78-84, depending on posted speed limits. Went to 100 when going around left lane bandits. Car was quieter than anything else I've ever driven, incl 2003 SL 500, 2003 E320 under same conditions. The noise is NOT normal and NOT an operational characteristic.

JR

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