Wiring up electric seats help!

A3jack

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• Dec 1, 2015

• #1

Hi lads, if anyone has seen my previous thread I have fitted a5 s-line seats into my a4 b7 front and rear, I've wired in everything and everything is working as it should no lights on dash!! Woooo!! But I now need to wire in the electric seats, I've wire the live to the cig lighter and tried to earth it too the seat frame, but no joy should I run another wire to the cig lighter earth? The lighter is still working so fuse is still working, any help and info welcome, thank you jack.

 

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dodsie75

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• Dec 1, 2015

• #2

When you say you have wired everything and everything is working do you not mean the electric movement on the seats? Did your original seats have electric lumber?

 

A3jack

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• Dec 4, 2015

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Hi mate, sorry should of said more clearly, I have wired airbags in etc so everything in that department is working, and no the originals didn't have electric seats, but I've been told I can wire them directly to a 12v source, as there is only two wires, red and black! And have it on a battery and they seem to work fine! Thanks Jack

 

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dodsie75

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• Dec 4, 2015

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Ah right I see. To be honest I wouldn't use the cig lighter for the power, fully electric seats require quite a big fuse. But having said that I'm not sure why it doesn't work, earth is earth it doesn't need to be the earth where the power comers from. But I would defiantly run a separate power from the fuse box to your seats if it was me.

 

A3jack

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• Dec 4, 2015

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Thank you for the reply mate, I was going to the seats to it because it's tidy, I was going to also put a bigger fuse in it, but could you tell me if possible how to wire from the fuse box? Thank you Jack

 

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dodsie75

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• Dec 4, 2015

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Not sure just a bigger fuse is the answer, the wires to the cig lighter may not take the extra power seat motors need so a bigger fuse is likely to not blow but melt the wires and potential fire!! Their is a few spare positions on the back of the fuse box you can put a terminal onto. I had to do similar when I retro fitted heated seats