CITROEN XM - Heater

The Electrics, Dashboard and Heater 13 Heater (2)
28 Citroen XM Internet Reference Version 1.0
3/3/99
13 Heater (2)
My guy who fixes my 2Si says that I need a new heater motor as the rheostat is part of the motor. This
costs an arm and a leg new. So have any of you experts any advice, in particular
(1) is the motor fixable?
(2) where in the UK breaks XM’s
Being relativly new to the XM - my elderly model has been around for a year- I was surprised how quick
it is point-to-point for such a heavy car with such a small ( and in my case 8 valve) engine. Which raises
the question is the V6 a lot quicker and is it as costly to run as rumour has it?
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Subject: Heater Motor
One assumes that the fan is not working, if so the resistor block can be purchased seperately ,it is
mounted on top of the fan unit and is not to difficult to change .
I do not recommend second hand units as these are generally already duff or will not last to long. The
latest units are of a better quality although you might think they are expensive it will be cheaper in the
log run
regards Andy Bairsto
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Heater Motor
My heater motor control board went as well. I was quoted 80 UK Pounds for a new replacement board
(just the board, no motor). I got a complete secondhand motor for 10 UK pounds just before last
Christmas and its still going strong.
BR
Michael
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First about the fan motor,it is normal that they fail,even in the scrapyard you cannot find a good
replacement.The cause is the electronic circuit on the motor.When I have found a solution I will tell you
about it. Next the little fan next to the sunroof is the sensor for the climate control,every XM with
electronic climate control has one To solve the problem with the ABS light. Follow the wires from the
sensors on the wheels and clean every connector then put the connectors together with a smear of
Vaseline. Normally the sensors on the front wheels give most trouble Keep up the good work and let
them(the XM's ofcourse) survive the critics!
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Does anyone know what could cause the heater control to fail? ie No climatic control, no speed control
- only off or full on when the control is moved to full. I've checked the connections between the motor
control module, the central dashboard control and the sensor in the roof and all is ok. I also found a
dashboard control in a scrapyard, but that didn't make I any difference. I've also changed the power
transistors on the motor module - no difference apart from slower motor speed! Luckily this is the only
electrical fault I've had in 150K miles!
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