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Old 05-24-2004, 03:24 PM
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relay diagram

I recently purchased an '83 300SD. The seats weren't working so I narrowed the problem down to a relay. Complicating matters is that the diagram located in the fuse box is missing (I had to hunt and peck after I figured out it wasn't a fuse). Does anyone know where I can find a copy of the relay diagram?

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Old 05-24-2004, 08:25 PM
sixto's Avatar
smoke gets in your eyes
Join Date: Jun 2000
Location: Eastern TN
Posts: 20,834
Maybe a wrecking yard? I don't have my 83 SD anymore or I'd send you a photocopy.

Looking into the fuse box while standing by the left front wheel and going front to back -

inside row:

- power seat control relay
- power seat separation relay
- overvoltage protection relay (for EGR, 84 CA and 85 only?)
- rear defogger timer and sunroof relay

outside row:

- auxiliary fan relay
- power window relay
- ACC compressor time delay relay
- wiper interval control relay

95 S420
87 300SDL
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Old 05-25-2004, 10:33 AM
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Thanks! That does help!

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