XM headlight problem

[Xantia97]

Hi All,
We have a problem with the XM (1997 2.5TD VSX Estate), today both dipped and one main-beam light have stopped working at the same time, side lights ok and the one working light will 'flash'. Fuses checked, but bulbs not checked - doubt three would go at exactly the same time. OH said he heard the control stalk 'chattering' last week, like a relay switching on and off. Any ideas where we should look first please?
Thanks,
Juliet

[xantia_v6]

I guess that the main beam problem is a bulb, and the dip beam problem is connections on the relay (above the RH headlamp).

For a wiring diagram that should match your car, see Gabors excellent production (not sure if you need to be a member of http://www.club-xm.co.uk" onclick="window.open(this.href);return false; for the link to work).

[Xantia97]

Thanks, will check that out.

[hattershaun]

I've experienced the 'chattering' stalk on previously owned XMs.
It was the indicator stalk sitting a bit too low, I.e. drooping, such that the internal contacts were close enough to cause electrical arching, which causes the indicator light relay to click on/off rapidly.
I think it's caused by aging/weakening of the internal spring that should return the indicator stalk to its middle position.
If it happens again try lifting the stalk upwards a tiny bit and see if the chattering stops.

Ultimately a new indicator stalk will fix this. If you can get one!

I don't know if this has anything to do with your headlights not working, other than they are controlled by the same stalk.

[Xantia97]

Thanks Hattershaun, the dipped lights work this morning - the joys of French electrics - so we think it is looking like a problem with the stalk, luckily they are still available, at least they are in France for about 105 euros so not too bad.

[Xantia97]

The problem was indeed the stalk, new one fitted by Citroen garage and all fine.