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It's RED, round, plastic and is located in the trunk, right side, towards the top, behind the side panel, it looks like it can be push in, the cylindrical round cap (about the size of a silver dollar) is extended outward, it has two aluminum rods that go into the plastic body. I have no idea what this could be, does anyone know?
 

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MB SL600, MB 380SE, Suzuki Grand Vitara, 38' Chris-Craft, Volvo V70XC, and my own two feet...
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Battery disconnect switch?
 

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1998 Pano SL500; 1993 SL500; 2005 ML270cdi
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I thought it was the emergency fuel filler release :confused:
 

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I thought it was the emergency fuel filler release :confused:
Oh yep, that's probably what it is. I forgot about that.

I've seen cars where people install aftermarket battery disconnect switches to prevent the battery running down if they don't drive the car much, and they're usually red and look something like what he's describing.

But you're right, it's probably the fuel filler door release.
 

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2003 E500 Sport, 1995 SL320
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I thought it was the emergency fuel filler release :confused:
bingo... it's saved my ass a few times.

i had to end up lubing the shaft (that's what she said) with some WD40, as my filler flap would often get stuck in the locked position.
 

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Greek God of the R129
SL500-500SEL-190E
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Wow WD40 is amazing, but I never thought using it on the shaft.
Hmmmmmm.
When you used it, was it for going in or going out?
Locked position?
Most likely on the way out. ;)
You dirty dog. :)
Regards.
aam.
 

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2003 E500 Sport, 1995 SL320
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hahaha. let's just say it wouldn't go in properly without lubrication.... im serious
 

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1991 300SL
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bingo... it's saved my ass a few times.

i had to end up lubing the shaft (that's what she said) with some WD40, as my filler flap would often get stuck in the locked position.
Just FWIW, I've been told never to use WD 40 around my car as it can ruin the oxygen sensor. I believe that I have seen "oxygen sensor friendly" WD40-like products on the market.
 

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1998 Pano SL500; 1993 SL500; 2005 ML270cdi
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Just FWIW, I've been told never to use WD 40 around my car as it can ruin the oxygen sensor. I believe that I have seen "oxygen sensor friendly" WD40-like products on the market.
I believe it is the silicone content that does the damage. I've heard that silicone damages the MAF sensor so it's logical that the O sensors can be affected too.
 

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Greek God of the R129
SL500-500SEL-190E
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OK OK I only use WD40 on screws and some emblems cement.
It is not a lubricant.
Regards.
aam.
 
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