E30 Zone

my facelift has a strange problem with the sunroof, the switch only has power with a door open, worked fine for a few weeks after i got it the only with a door open -has this ever happened to anyone else?

Sorry to be a pest but any ideas Brianmooore?

As I understand it the car has separate circuits and thus fuses for operating electric windows and sunroof depending on whether the keys are in ignition/engine running or keys are out and doors open.

So it might be that the fuse for the first circuit is blown, but not the second.

hth

C

Do the windows work when the doors are shut?
As connoisseur says, there are two circuits to power the windows and roof with either ign on, or doors open.

sunroof works with keys out and in -but only with a door open -the windows behave as they should

Replace fuse 17

Done -all fuses checked as well. No change.

Its like the sunroof is powered on the same circuit the cabin lights which is weird.

Pull out relay K5 and link together pins 30 and 87 of its base with a piece of wire.

i do have a spare relay... would that be a better idea?

No offence i know your knowlage of such things far exceeds my own, am i to understand u are suggesting bridging the circuit in a way the relay was not designed to?

goosiegander wrote:i do have a spare relay... would that be a better idea?

No, this is a test, not a cure!

completed -no change to behaviour both switched off and on with ignition for sunroof or windows -windows are fine. Sunroof still only works with a door open

I'm lost!
Windows: Do they work with a door open and ignition off?
Do they work with the doors closed and the ignition on?
Do they work with the doors closed and the ignition off?

Roof: Does it work with a door open and ignition off?
Does it work with the doors closed and the ignition on?
Does it work with the doors closed and the ignition off?

Windows: Do they work with a door open and ignition off? -nope
Do they work with the doors closed and the ignition on? -yes
Do they work with the doors closed and the ignition off? -nope

Roof: Does it work with a door open and ignition off? -with a door open the roof works in all ignition states
Does it work with the doors closed and the ignition on? -nope
Does it work with the doors closed and the ignition off? -nope

When the windows work, the roof should work as well. The switches for both (should) share the same supply point.
Sounds like someone has got the wiring all wrong around a relay in the back left corner of the glove box.
The short loom attached to the relay has a white/black wire coming off it which plugs into the middle socket vertically of the second column from the right of the accessories socket at the back of the glovebox, which comes directly from fuse 17
There is a red/yellow wire which should be plugged into the top left of the accessories socket, which is fed directly from fuse 28. About two inches back the red/yellow from the plug that goes into the accessories socket, there is a flying socket. The red feed wire to the electric aerial should be plugged in here.
There is a green/blue wire coming from the relay which should be plugged into the connector from the windows loom. The plug on the windows loom is identical to the one on the white/black wire.
There should be another green/blue wire emerging from the end of the windows loom near the plug with a flying socket on it. The single feed wire to the roof plugs in here.

i think this is a trace the loom job, thanks Brianmoooore i do appreciate the info, to shed a little more light on the situation the electrics were tampered with just before i got the car -the central locking was dead and they bypassed the drivers door socket/loom connection by doing away with the plug entirely and crimping on a load of wires -i'm not sure if they did it with all the wires correctly... the central locking works now and when i got the car back the windows and sunroof worked just fine as well. It was about a month after the 'repair' that the sunroof cut out and has been as described ever since, i have everything i should need to replace the plug and its loom i think, picture to follow...

Here is the replacement part from bmw for the driver door conduit plug, does it plug into the loom directly the from the loom to the cl-ecl etc...






do i have the right part cuz i cant see where to put it

Can't say I recognise many of those connectors!

then i am even more open to suggestions... lol

Back to the windows and doors. They should both either work or not work with the same combinations of doors open or ignition switch position.
The green/blue wire from the relay at the back of the glovebox goes to two single pole connectors. One should feed the windows, the other should feed the roof.
You say your roof and windows work at different times, therefore the wiring in this area must be wrong.
By what you say, the feed to the windows is plugged into the accessories socket where the white/black wire should be, and the white/black wire isn't plugged into anything (with power on it, anyway).
Pull the green/blue window feed wire out of the accessories socket and plug the white/black in its place.
Find the unused socket on the end of a green/blue wire, and plug the windows wire into it.

much appreciated -will get right on it

just snagged this picture from the security measures thread, do i just need to make my glovebox wires look more or less like this in the area you specified?

In this picture you can see the red/yellow and white/black wires plugged into the accessories socket (the socket with the red plug on a green wire plugged into the middle of it), going across to the blue relay. The two mainly green wires with white single pole connectors in the bottom left of the picture are probably the two wires from the relay, with the windows plugged into one and the roof plugged into the other.

Played with the wiring last night the sockets seemed to be in the right place but the relay was a ford one so swapped it for a spare that i have.
Decided to snip out the torch charging box and as i cut the two wires it shorted burning out fuse 21 replaced that and now for some reason the glovebox light has started working with the ignition on as has the sunroof, one word,

WEIRD!

i'll take a picture of the wiring inside the glovebox because some of it doesnt look standard, theres been some comms gear put in for uhf radio or something.
Any thoughts?