Noise in Passenger Side Panel Area - Page 2 - Mercedes-Benz Forum
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#11 (permalink) Old 12-16-2007, 07:25 PM
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Originally Posted by HalVaughan View Post
Muskrats.

Definitely angry muskrats.
No don't think its muscrats. Haven't seen them on the property. Can't be the cow, deer, fox, ferral hogs or turkeys that cross the property they are too big. I guess it could be an angry scorpion, or tatrantula.

Tom
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#12 (permalink) Old 12-16-2007, 07:29 PM
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I'll vouch for the angry scorpion. That sting is a motherfucker. Fact.
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#13 (permalink) Old 12-16-2007, 09:01 PM
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Perhaps breeding Muskrats.

(Sorry, I haven't been the same since the Captain & Tennille's "Muskrat Love was #1 on the pop charts. I'll never be the same again...and it's been 30 years...)
And here's an interesting bit of trivia: on what classic rock album did Toni Tenille do the back up "moaning" vocals and for what group?

Hey, it's either ask a trivia question like that or post whacked out pics of you like what happened to Dugald recently.
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#14 (permalink) Old 12-16-2007, 09:04 PM
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No don't think its muscrats. Haven't seen them on the property. Can't be the cow, deer, fox, ferral hogs or turkeys that cross the property they are too big. I guess it could be an angry scorpion, or tatrantula.

Tom
Okay, Meerkats, then.

Or maybe ocelots.

Do they have prairie dogs in your part of Texas?
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#15 (permalink) Old 12-20-2007, 11:40 AM
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Okay, Meerkats, then.

Or maybe ocelots.

Do they have prairie dogs in your part of Texas?
Not in this part of the hill country.

Tom
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#16 (permalink) Old 12-20-2007, 12:54 PM
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It could be something to do with the servo / amp for the heating. Is that system working OK? You could pull that fuse to confirm.
Does it sound like it could be a relay buzzing? All this stuff is in that area.
The heating seems to working OK.

Checking the fuse panel guide I can't seem to identify a fuse for the servo/heating amp. What it be under another name?

I have ruled out wildlife being the cause of "the noise".

I have observed that the auxilliary fan (AF) is constantly going from the time the car is started. The AF will run at different rates when "the noise" is occuring. When "the noise" is absent, the AF runs at a constant speed. I removed the fuse for the AF and "the noise" continued on. (I did this not knowing if relays are before or after fuse panels.)

I have observed that the interior light located below the glove box will flicker when "the noise" is occuring. When "the noise" is not occuring the light stays at a constant brightness.

"The noise" appears to be very close to the fuse panel.

Yesterday I drove the vehicle 50 miles and it ran fine except for "the noise".

Any suggestions as what to do next except for turning p the radio?

Tom
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#17 (permalink) Old 12-20-2007, 05:31 PM
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Fuse 2 pulls power to the fan. Fuse 10 pulls power from the relay. I think the relay is the problem and pulling the 10 fuse will narrow down the problem. Pull it and report back findings and we will find the intermitten ground path that has it buzzing.

Timing has a lot to do with the outcome of a Rain dance.

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#18 (permalink) Old 12-20-2007, 05:49 PM
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Fuse 2 pulls power to the fan. Fuse 10 pulls power from the relay. I think the relay is the problem and pulling the 10 fuse will narrow down the problem. Pull it and report back findings and we will find the intermitten ground path that has it buzzing.
Thanks for the information on fuse 10 (AF relay). I should be able to get to it tomorrow.

The noise appears to be coming from one of the relays behind the fuse panel. I pushed the relays thinking perhaps that one could have been loose. When pushing them in, one seemed to be warmer than the others. Can't remember which one it was. will try again tomorrow.

I tried to identify which relay went with the AF, but couldn't figure that out
from my MB factory service CD-Rom

Thanks,

Tom
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#19 (permalink) Old 12-21-2007, 09:59 AM
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Fuse 2 pulls power to the fan. Fuse 10 pulls power from the relay. I think the relay is the problem and pulling the 10 fuse will narrow down the problem. Pull it and report back findings and we will find the intermitten ground path that has it buzzing.
This morning went to check on "the noise". It did not disappoint me. I pulled fuse 10. The fan stopped as did the instrument panel closter. "The noise" continued. While replacing fuse 10, I noticed fuse 12 was blown. I replaced 12(cigar lighter and heated seat). "The noise" was gone. Today the weather in the Austin area will be 77 and sunny, so the real Cookie79 and I will be putting the top down and driving to Kerrville, TX. (150 miles round trip) If "the noise" does not return I will assume that the problem is fixed. (I will also remember an adage that my mother used to say "assume" means you made an ass out of u and me).

I'll report my finding upon our return.

Tom
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#20 (permalink) Old 12-21-2007, 01:28 PM
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I replaced 12(cigar lighter and heated seat). "The noise" was gone.
My two set of prints show cigar lighter / light & glove box light. either way, I can't see how replacing a blown 12 fuse would have any effect on anything else. Maybe someone has "tapped" the circuit, but still........

Timing has a lot to do with the outcome of a Rain dance.

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