Crackling Sound Behind Dash - Benzworld.org

sbou101 · 01-23-2006, 03:38 PM

Hey Everyone,

Sometimes while I drive, a crackling sound can be heard from behind the ac control/dash area. It happens at least once every time I drive and it seems to happen when I turn off the ac (so I can open the windows), but it doesn't always do it when it is off. Any ideas? I'll try to get a recorded sound sample.

Thanks

93 BENZ S400SEL · 01-23-2006, 03:55 PM

Try to use a better word to describe sound than crackling. Crackling like aluminun foil being crushed ?Snap, Crackle and POP was a cereal and I still dont know what it sounds like. Be more specific if you can.

sbou101 · 01-23-2006, 06:52 PM

It sounds like sand falling onto aluminum foil. It sometimes also sounds like two pieces of plastic, that have been glued together, being separated.

Ed Mclass · 01-24-2006, 05:54 PM

You may have some small leaves in your outside air intake. Check the outside intake with your hood in the upright position.

sbou101 · 01-24-2006, 06:26 PM

I know that I cleaned out the top of the outside air intake. I'll try to see tomorrow if I can get inside it to clean it out. That is possible, right?

Merc600sec · 01-25-2006, 02:57 PM

Right down inside.. look in my gallery for the pics..

DJ S420 · 01-26-2006, 05:56 AM

I have a similar deal.I believe it's coming from 1 of the blower fans in the dash.

sbou101 · 02-12-2006, 07:09 AM

OK...

So, I've taken the car in for service, the first time I do this since I bought it 2 weeks ago used at 136 K miles. They're charging $100 just to check it out (the sound) and let's see if they discover something.

mwoj · 09-13-2008, 06:47 AM

Hey folks!

I just bought a 300SDL and I'm having the same problem -- at higher RPMs it sounds like a little elf is making popcorn somewhere behind the dash. While this is happening, I stop the car and I don't hear the sound coming from the engine compartment. Really sounds like it's somewhere behind the dash.

Thanks all! Aren't these wonderful cars?

**bayhas** · 09-15-2008, 02:28 AM

Quote:

Originally Posted by mwoj

Hey folks!

I just bought a 300SDL and I'm having the same problem -- at higher RPMs it sounds like a little elf is making popcorn somewhere behind the dash. While this is happening, I stop the car and I don't hear the sound coming from the engine compartment.

check your exhaust heat shield...