After having my car repaired, I could not move seat. Mechanic had moved it front, now it won't move. Just got done trying a new switch, still doesn't work.
All other seat movements work. Any suggestions?

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1984 MB 300SD Turbo

Ask the mechanic to put the seat back where he found it.

Look under the seat for a loose plug. There are two.

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1984 300SD turbo 126
"My true love"

God made me an atheist and who am I to question His wisdom

Can you hear the motor attempt to move the seat? I get from your current troubleshooting that it doesn't. If it does attempt to move, sometimes lubrication of the rail convinces it cooperate. It's likely you will have to take it loose from the floor to apply any lubricant where it will do any good. While it is loose, check the drive cable and make sure it is seated at the end, check for a snap ring. If it tries to turn but "pops" it may need replacing. (The cable itself is a replacable part.)

Look for a connector that contains a violet wire. I believe the front-rear (entire-seat) is on its own connector (C2)

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Sam

84 300SD 350K+ miles ( Blue Belle )