M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

Noise

Old Jun 14, 2021 | 05:34 AM
  #1  
Jimmyy's Avatar
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1999 ML 430
Noise

Hi, I have a 1999 ML 430 with 238.000 km and noticed a noise coming from where the pedals are or under the steering wheel. I can hear the noise when I turn the key to battery mode, when the engine is running and when I switch off the engine. The noise is more noticeable with the engine switched off. In the video below I switched off the engine and removed the key from the ignition.

(Better to use headphones)

What is making the sound?



Thanks, Jimmyy
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Old Jun 14, 2021 | 07:08 AM
  #2  
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2002 ML 320 & 2006 ML500
At what second/time is it making the sound? Are you turning the key on & off?
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Old Jun 14, 2021 | 08:16 AM
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1999 ML 430
The engine was on and I switched off. You can hear the noise at 4 seconds
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Old Jun 14, 2021 | 01:26 PM
  #4  
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2002 ML 320 & 2006 ML500
Sorry, I have no idea what that sound is. Open the door and crawl into the foot area and turn the key on and see where the noise is coming from.
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Old Jun 14, 2021 | 03:08 PM
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1999 ML 430
I put the phone inside the wheel arch of the front left tire and you can hear a roaring noise. The engine was switched off and no key in the ignition.
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Old Jun 15, 2021 | 06:08 AM
  #6  
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2002 ML 320 & 2006 ML500
To me it sounded like the cooling fan. Do it again and see if the fan is running.
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