Question about 1992 Mercedes-Benz Mercedes Benz 300 Class

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Heater I have a 300d from 93/94 and the heater has stopped working - there dosent seem to be any water leaking from it and i checked the expanstion bottle for water and its full so I don't think its a leek or a cracked heater matrix - could you please help - . Thanks Bruce

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  • Anonymous Mar 30, 2009

    Hi - thanks for posting ! By heater core do you meen matrix ? Wouldn't this involve removing the dash ?

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Have you pulled the heater core to see if its getting enough flow. If its filled with old nasty built up congealed coolant then it will not work. I would pull it, see if its nasty inside. put a hose to it and see how the flow is. If its clogged down at the bottum of course this won't really tell you anything. Check to see if your fan is working. If air flow is not getting to the heater core then you wont get any heat either.

tepfy

Posted on Feb 27, 2009

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