relay next to accessory socket/loom

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billyfrost
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Post Mon Oct 01, 2018 4:16 pm

Afternoon all,

Just in the process of removing a factory alarm/immobiliser from a 1988 316i coupe.

Following a few instructions from previous posts on this subject, I have most of it removed (without damaging anything) but wondered what the blue relay next to the accessory socket/loom is for? Not sure if its for the alarm or something else?

It is connected to a thick yellow/red wire going to the Accessory socket itself (Antenna circuit I think) which was also powering part of the immobiliser unit, and also a thick green/blue wire. This green/blue wire has a single plug socket on it that can be disconnected and connected back to the existing green/blue wire, removing the relay from the green/blue loop.

Blue relay has this number on it: 61311378786 (which is returned as a fuel relay).

Does anyone know if this relay is for anything else / OEM please?


Cheers,
Billy
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arrisbmw
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Post Mon Oct 01, 2018 4:49 pm

has it got gr/r to pin 87 , double br to 85, r/y - 30 and gr/bl to 86 . in which case heated seats.

r/y and gr bl go to plug for heated seats .

hope that helps , according to one diagram i found in haynes
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arrisbmw
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Post Mon Oct 01, 2018 4:51 pm

its not the fuel pump relay. nor the fuel injesctor Relay
. nor the fuel injector relay II
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biffer
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Post Mon Oct 01, 2018 8:39 pm

Will be the relay that allows your electric-windows/sunroof to operate when a door is open.

If you stick your ear near it and operate the nearby door courtesy-light switch with your finger you should hear it clicking as it switches the window/roof power-supply from the white/black wire to the red/yellow wire.
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billyfrost
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Post Tue Oct 02, 2018 9:17 am

Morning - thanks for the feedback, I'll check both those things this morning and let you know - cheers.
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Brianmoooore
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Post Mon Oct 08, 2018 10:24 am

biffer wrote:Will be the relay that allows your electric-windows/sunroof to operate when a door is open.

If you stick your ear near it and operate the nearby door courtesy-light switch with your finger you should hear it clicking as it switches the window/roof power-supply from the white/black wire to the red/yellow wire.
This!