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  #1  
Old 07-27-2007, 12:27 AM
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Join Date: Jul 2007
Posts: 17
Questions about my 84 380SL

Newbie here! I recently purchased a 83 380SL car is in decent shape but needs a little bit of TLC.

1) The orginal radio was removed and replaced with a aftermarket radio that doesnt work anymore, well the genius who installed it clipped all the original wires and did not use a harness. I want to install a new radio but is there anything i should know before i go in and try to repair this horrible nightmare???

2) The a/c compressor doesnt work doesnt even have a belt going to it, i want to know if any one can tell me the model number of it. I also want to know if i can use a compressor from a diffrent MB of the same year?

Thank you in advance for your time im excited to be part of this forum!!
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  #2  
Old 07-27-2007, 03:15 PM
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Join Date: Apr 2007
Location: Sierras, CA
Posts: 137
When I tried to order a wiring harness for my 82 380SL I discovered that no one manufactures a harness for an 82 SL. The only option was to cut and "hard wire" the new stereo. I did find instructions/diagram for the existing wiring after a search. I might suggest you carefully label the wiring on the Becker and save it for a future buyer. Some are "funny" about aftermarket stereos.

I also had to replace the A/C compressor and dryer as well. Most of the on-line parts suppliers have them.
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Old 07-28-2007, 10:41 PM
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Join Date: Jul 2007
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cool thanks for the info.
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Old 07-30-2007, 02:14 PM
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Join Date: Apr 2000
Location: Falls Church, VA
Posts: 5,316
You need to poke around in the cut wires. You should be able to find the following wires and colors:

ground - brown
hot with key in ACC - red/green, sometimes black
always hot - ?
antenna - blue
speaker wires - green/black to the stock speakers in the dash

As for the AC, it's very likely that the belt is missing because the compressor is frozen. I THINK all 380SL compressors interchange, maybe sedans, 560's etc will work as well. But if you have a blown compressor, you will need some work to flush the debris out of the system. In any case you will need a new drier bottle.
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Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
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