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Flapping sound in driver's footwell???

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Old Aug 21, 2010 | 12:20 AM
  #1  
rennwerkes's Avatar
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From: Honolulu, Hawaii
2001 E55, 2002 ML55, 2002 SL500, 2003 CLK55
Flapping sound in driver's footwell???

Does anyone know if there's a air flap that may break in the driver's footwell?
Upon start up there's a consistent flapping sound about every few seconds and then it goes away. It's actually more like a "thunk" and does it only one time then does it again. For some reason it eventually stops.
Unlike the clicking most folks refer to this is no a click and seems to be coming from right under the steering column.
Thanks!
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Old Aug 22, 2010 | 02:53 PM
  #2  
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I drive the racism out of BadDebt. ;)
search the forums under " stepper motor"

its usually the control arm from the stepper motor that fails...which results in a constant thunk every few seconds.....
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Old Aug 22, 2010 | 03:46 PM
  #3  
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From: Honolulu, Hawaii
2001 E55, 2002 ML55, 2002 SL500, 2003 CLK55
Originally Posted by Supafly
search the forums under " stepper motor"

its usually the control arm from the stepper motor that fails...which results in a constant thunk every few seconds.....
Supafly,
Thanks.
I've checked out the stepper motor threads but thought this might be a little different because most refer to the stepper motor in the center of the dash.
This sound seems to be coming directly from the driver's footwell.
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Old Aug 22, 2010 | 05:29 PM
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From: MA
E90 M3
fapping sound?
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Old Aug 22, 2010 | 08:32 PM
  #5  
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I drive the racism out of BadDebt. ;)
Originally Posted by rennwerkes
Supafly,
Thanks.
I've checked out the stepper motor threads but thought this might be a little different because most refer to the stepper motor in the center of the dash.
This sound seems to be coming directly from the driver's footwell.
Yeah, theres several of them controlling all the HVAC... theres one in the dash; one under drivers footwell, and one in the passenger footwell.

If you're willing to tear your car apart...its an easy yet time consuming fix...

The dealer is 1200 usd. aprox
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Old Aug 22, 2010 | 08:33 PM
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I drive the racism out of BadDebt. ;)
Originally Posted by kevblah
fapping sound?
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Old Aug 22, 2010 | 08:42 PM
  #7  
rennwerkes's Avatar
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Originally Posted by Supafly
Yeah, theres several of them controlling all the HVAC... theres one in the dash; one under drivers footwell, and one in the passenger footwell.

If you're willing to tear your car apart...its an easy yet time consuming fix...

The dealer is 1200 usd. aprox
Supafly, I've seen the DIY for the center vent but do you know of any DIY for the driver's footwell? I'm guessing it'll be much easier to get to than the center vent. Or at least I'm hoping it is.
Thanks!
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Old Aug 24, 2010 | 08:32 AM
  #8  
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From: CYPRUS
MERCEDES CLK W209
i have the same problem but from the dash board and the enjineer told me its something like an air valve and he needs to keep it for 3 days to fix it....
he told me i have nothing to worry if i dont mind the clicking sound when i start the car
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