I have a Xantia 1.9TD LX 1996 for my sins. Driving home yesterday I had
a fault which did occur a few months ago but only reappeared yeterday.
The symptom is the engine stop light comes on together with the orange
warning light at the top of the temperature gauge. Last time this
happened the fans came on as well but this time the fault had vanished
by the time I pulled up. Water level is fine, the engine is not
over-heating, hydraulic level is fine. The last time this occured
someone (could have been on usenet, could have been my local garage)
suggested the thermostat, I have changed that and it all seems ok. The
only thing other relevant thing I can think of is that yesterday I was
using the aircon to demist the windows.
The fault didn't reoccur this morning of course.
one of the radiators for your car is for aircon. if for some reason thats
overheating. it may put the temp warning light on.. and of course the stop
without moving the temp guage of course as this measure the temp of the
water in the engine.
Just a thought.
although i would suspect a sensor fault ... that would display this
There are two "radiators" on the aircon models, the standard water one for
the engine, and in front of that is the aircon condensor. The fans are in
front of that. I doubt it is anything to do with the condensor, as normally
any fault in the aircon system just shuts the aircon off.
I did have a problem on my old 405 where the fans kept on coming on for no
obvoius reason. This appeared to be a dodgy connector on the Bitron control
module, which on that car was behind the nearside headlight.
It is certainly worth checking all the connectors you can get at, pull them
apart, spray with WD40 or similar, and put together again. There are also
some big round multi connectors which were behind the LH headlamp which
connected most of the engine compartment and fans etc. Again, clean them if
my 99 Xantia Hdi does exactly the same - but more frequently by the sounds
of it ...
I've always assumed its a dodgy sensor or connector as the water level is
fine and the engine is clearly not overheating ... mine seems to do it
independant of temp or any other user settings or vehicle conditions ...
it always goes out again so I'm not that worried - and if I wanted it fixed
I'd probably have to go to a main dealer for the part, and that worries me
more than the light!
if you do fix it with new sensor or whatever pls post the result - it might
inspire me to do mine (which would stop the wife worrying ....)
I used to get this intermittently on my 1.9TD SX 1997 - along with a few
other intermittent faults. All occurred when it was damp, and I put it
down to the fact I'd lost the engine tray exposing the electrics to road
Never caused a problem beyond the false indication - YMMV, of course.
Steve Durbin | Look! Minimalism and pointillism comes to ASCII art!
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The problem is most likely the cable coming from the engine.
Because the engine is constantly moving, the wires will break at the place
where they 'leave' the engine.
There should be a cooling sensor on the waterhouse on the engine. I think
it's a green connector,
not sure, you can try it by switching ignition on, and pulling of the
connector on the engine,
fans should come on at maximum speed (can take a few seconds).
Follow that wire (probably numbered) to the left of the car, it's connected
to a large round connector.
Best you can do is completely replacing this part of the wire (about 50
Solved this problem in 2 cars this way..
(Bitron relays in your car is located under the glovebox)
Hope this helps,
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