What is this fuse for?

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swllt
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Mon Jun 06, 2011 10:54 am

Under the steering shaft, next to the ECU is a single in line fuse joining two parts of the loom.

What is it for and what does it do?

On my first E30 I thought someone had added it, but all the ones I have looked at seem to have it.

Someone please help 'cause it is really bugging me.
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swllt
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Mon Jun 06, 2011 3:58 pm

Anyone help? Someone must know!
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Brianmoooore
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Mon Jun 06, 2011 4:08 pm

New one to me! What models and age are these E30s?
swllt
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Tue Jun 07, 2011 9:23 am

Brian,
One is a F reg 320i, second is a E reg 318i, third was 325I se G reg.
Just noticed all are from the same dealer. (Trainer's in Swansea)
Was there some sort of fix kit that the dealers added?
because removing the fuse changes the idle speed (down by 100 rpm)
Picking up a 320i touring tonight from mid wales will check that for this fuse. very odd.
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Brianmoooore
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Tue Jun 07, 2011 10:26 am

Can you post up some pics?
What colour wires are involved?
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jimbob29
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Tue Jun 07, 2011 10:59 am

i had same fuse on my previous 316i 1989 2door it had emoblisa under ignition which i had a plug for to start car i thought it was for that?it also had a stop light bult into rubber spoiler which was defintey came as standard which ive never seen before??
swllt
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Tue Jun 07, 2011 12:51 pm

I will take some pics tonight and trace the wires and colours.
One car has an imobiliser (after market) the other two have not
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