Mystery Coax Cable - Mercedes-Benz Forum
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post #1 of 1 (permalink) Old 04-27-2019, 07:21 PM Thread Starter
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Date registered: Nov 2006
Vehicle: '84 300DT, '97 S320
Location: Fayetteville, GA
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Mystery Coax Cable

Hello, all ! I am replacing my C-Pillar upholstery, left rear belt, and little plate the 3rd Brake light attaches to. I've removed the right C-Pillar material, and before that, you must pull off some door liner rubber and about a 3-ft upholstery-plastic piece. Imagine someone sitting in the far right of the back seat. This picture would be looking at their right shoulder area.The right rear door is open, and many wires, vacuum lines and a coax cable come from the right rear lower sill and up to the C-Pillar area. Strangely, the coax stops about midway up into the C-Pillar. I have been visiting a salvage yard lately to see how to safely remove the C-Pillar material (even though I am putting in a new piece - BTW the left side with color 8F43 is not available - bought a used one from a German place). The salvaged car also has the coax cable, but it does not stop like mine does. It is firmly attached high up into the top of the C-Pillar.

Does anyone know what this goes to, and why it would stop half-way up into the C-Pillar ? I didn't cut anything - not using anything sharp to remove the C-Pillar. I doubt it feeds electrons to either reading lamps, nor the lamp at the top of the rear window, nor the 3rd brake light, nor the defogger lines. The lettering on it includes the word "antenna", but the metal antenna is on the left fender, so I doubt the antenna cable is routed along the right side of the car. Maybe part of pre-wiring for the phone option ? But why does it terminate there ?

Thx, Dave H
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Dave H.

'73 220D White "White Knight" ('77-'06, 240K mi; floorboards rusted; gone to MB Heaven)
'84 300D Turbo Maroon "Raspberry" ('95-present, 375K mi; daughter named him)
'95 Merc Villager "Blueberry2" ('00-present, 252K mi-2nd engine-tip of crankshaft broke at 170K)
'97 S320 LWB Black "Ebony" (2010-present, 217K; bought at 204K mi)
'07 Dark-Green GMC Yukon Denali "Jade" (Added Apr 2011 - 104K)

Last edited by MB220D300D; 04-27-2019 at 07:23 PM.
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