Glowplug Light Mod

[Tom]

Back again with another glowplug related guide, damn, i need to find something more interesting to share! So as we all know the glowplug light comes on and then goes off and doesnt really show you anything, the glowplugs are still on after the light has gone out, whats the point. So im going to show you how to change that so when the plugs are on the light is on, and when they're off, the light is off. So first get your gloves on

So outside, under the bonnet, locate your glowplug relay, its got a multi plug and few heavy duty wires on it.



Oh there it is.

Now you need to identify the wire that goes to the light in the dash. So get your meter out, put one probe on the negative battery terminal...



And the other one in the back of that multiplug...



Then set up the meter so you can see it from the drivers seat...



Turn on the ignition try and watch the light and the meter, the correct wire will have 12/11volts with the light on and 0-ish volts with the light off, on my car it was the YELLOW wire, but then again i have a 205 so it might well be different in the 306's.

Once you have located your wire, cut it and put a ring terminal on the end...



Then you need to go back with you're meter and test the 2 bigger terminals at the other end of the relay box, one of those wires go to the glowplug rail and the other goes somewhere else lol. Obviously it should 12volts with ignition on and it should drop off to 0volts when you hear the relay click off (need to be somewhere reasonably quiet to do that) On my car it was the one nearest the multiplug, again it might be different on yours. So i put my ring terminal on there...



Remount the relay box then your good to go. All done. Probably half hour start to finish for the average diy'er doing it for the first time?
Credit for pictures and guide goes to me, credits for the actual idea goes to Darren (darrenjlobb)

Feel free to rep if you like this or it has helped you, or just for no reason i could do with the numbers