Driver side dash board leaking anti-freeze???? 68 280se - Mercedes-Benz Forum

 
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post #1 of 7 (permalink) Old 09-25-2012, 02:50 PM Thread Starter
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Driver side dash board leaking anti-freeze???? 68 280se

I recently found a puddle on the floor in the backseat of the driver side. I thought it was from rain getting through the old door gaskets, so I changed them, only to find that the puddle kept reforming. I was at the point in my restoration where I had nearly the entire interior gutted and was about to rip up the rug. Upon removing it, I instantly noticed it was anti-freeze. It was dripping from the "behr" black box onto the center hub and running down the driver side of it, pooling a little in the front driver side floor then making its way into the backseat floor where it would just pool like a lake!

I have nearly the entire dash disassembled now and can't really find anywhere to disconnect or remove the behr black box where the leak is originating.

Is there any specific location where I can access screws or bolts to remove it?

Anyone have any clue as to what the leak might be? (Hopefully it's just a hose.)

What's the best thing to do?

Any help would be much appreciated.

Thank you.

I case I did not say so, it is a '68 280se


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post #2 of 7 (permalink) Old 09-25-2012, 05:06 PM
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That sounds like the heater core is bad.
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post #3 of 7 (permalink) Old 09-25-2012, 05:29 PM
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either a heater core or the valve seal. Valve seal is easy to change, no need to remove the heater. To remove the heater disconnet the water lines and remove the screws that hold it to the chassis, pull out the complete unit. Find another core as fixing it is almost imposible.
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post #4 of 7 (permalink) Old 09-25-2012, 05:37 PM
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If you're removing the heater core, I'd look to servicing (or replacing) the blower motor too. Those are a BEAR to get to (ask me how I know)
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post #5 of 7 (permalink) Old 09-25-2012, 07:25 PM Thread Starter
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Thanks guys! Hopefully it is only the valve seal and not the whole heater. I'm so close to finishing this project and it seems every step forward accompanies two steps back lol!

I appreciate the help and will report back my findings after I get to it within the next few days.

Thanks again.


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post #6 of 7 (permalink) Old 09-26-2012, 12:38 AM
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This year I restored a W110, beautiful restoration,when finished 2 things happened in 4 days. First the blower blades got destroyed testing the electrical system on the car and after removing and installing the whole system again a core leak developed.

Here is a link where you can find useful info on how to remove it on your w108, pdf files

http://www.benzworld.org/forums/vint...sources-2.html
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post #7 of 7 (permalink) Old 09-26-2012, 04:33 AM
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My heater core started leaking this spring too. I bought a longer hose and bypassed the heater for now. Keep us updated on your progress!
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