So digging around my new GTI6 I've come across an interesting modification the previous owner neglected to tell me about: a burnt out (and missing) green relay in the cabin fusebox, along with a jumper wire (fused at least) which is bypassing it & some general molten plastic elsewhere.



Now having checked the FAQ there is no mention of what relay does what, and indeed i've seen pictures of the fuse box with and without this relay in place... does anyone have any idea as to what this thing controls, is it something not used on a Phase 3 GTi or indeed something important?

I was thinking engine fans (supported by the previous owner, who says it was like that when he got it and was to help with a fan issue according to an auto electrician who inspected it) and having done the usual test by removing the brown plug from the thermostat housing I find that only the left fan spins up at high speed... so presumably something within the control circuit is buggered aswell (this I can troubleshoot using the guides online, i'm suspecting a loose connection and/ or dead fan as it's had the controler replaced previous... apparently)

I've ordered a new fuse box from eBay to be on the safe side, and it looks as if the whole thing comes out easy enough, but I have a few questions.

1. Is the fuse box attached using a loom connector, i'm hoping beyond all it's not a case of removing and attaching each wire individually!

2. How do you remove the relay carrier from the car without the dash coming out (if even possible, again I hope so)

3. What does the missing relay do, and is it likely related to the fan issues?

I'm at a loss here so any help would be MUCH appreciated.

Cheers

Yeah, I did see that but wasn't sure if it was a generic Phase 3 or a 6 specific one... did see this which has a green relay in that position and wondered what was it was for:



Perhaps rear electric windows or the power hood on a convertable maybe, there isn't much extra that could be fitted as the 6 has the highest level of accessories.

If it's not used then even better, I can fit a new female blank, trace the wires and see what they are doing and clean it all up before tackling the bitron unit and / or fan relay's

Cheers

Yeah I think the cooling fan system has an error somewhere else, but the guides and wiring diagram seem pretty straightforward so I can troubleshoot and sort that one out on Sunday, im hoping a clean of connections / check of fan relays will sort it but worse case a new fan or Bitron unit is inexpensive and easily done.

Thanks for confirming my suspicions that there shouldn't be a relay there... Rear Window motors, electric hood or perhaps a diesel related accessory are all I can think off that would fill that slot. Couldn't find a definitive list anywhere of what each one does.

Do you think that the fact something has been plugged in (must have been the case, for whatever reason, perhaps by mistake) would cause the relay to short and melt out as presumably there would be a 12v feed but no earth to go to as the relevant accessory is not plugged in?

I'm still not sure what the jumper cable does but will know once I get the fuse box apart - hopefully I can get things back to normal without too much issue.

Cheers for your help.

It did have wiring left in for the Sub / Amp so I half suspected that may have been the cause.... I can understand the thinking as to why the previous owner may have done that & perhaps replaced with the inline fuse after it burnt out a relay.

Either way it makes my life easier as I can just replace the fuse board & clean up the relay holder rather than re-wire a new socket .etc

Still need to figure out what the jumper lead does, let's hope it's a simple fix.

Cheers for the help, on a side note, what do you know what each of the other relays do in there. Can't find a guide anywhere.

Maybe that's why it burnt out the relay in the first place...

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"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

Your rear wiper clearly melted it at some point then as that's the prime candidate for nuking that fuse. Suspect it blew once, and some f**ktard put a higher rating of fuse in there.

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I'm Si btw

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