Automatic Heating
09-16-2004, 11:09 AM
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ML 270 CDI 2002
Automatic Heating
Sitting in the car the other night, with the engine off. Was getting pretty cold, so I decided to turn the heating on (ignition was off, when I discovered that the climate system would not work. If I understand it correctly the system should work until the stored heat runs out or the battery drops below a certain voltage. Well I had just driven for 8 hours, so I assume that everything was OK. It has worked fine in the past when I have left the car to go shopping. Anyone have any ideas??? or is it another trip back to the dealer.....
09-17-2004, 12:02 PM
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ML 270 CDI 2002
Rest switch? Not sure what you mean. In the past when I have left the car and turned off the ignition, I press the "Auto" and the heating will maintain the temperature I set until it switches off due to voltage drop or heat loss. Does that help?
09-17-2004, 12:08 PM
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03 ML500;05 G55;02 CLK 430;2K MRoadster
You said it yourself, if the voltage drop rest switch feature will not work. A possibility that the battery is going?
Last edited by emro; 09-17-2004 at 12:11 PM.
09-17-2004, 12:11 PM
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Sosh, just checked, yes the "rest switch".
Emro, thanks for the idea, I had thought the same about the battery being the problem. However I had just driven for 8 hours non-stop. When I decided to put the heating on the engine had only be off for about 5 minutes. However I will have the battery tested.
Emro, thanks for the idea, I had thought the same about the battery being the problem. However I had just driven for 8 hours non-stop. When I decided to put the heating on the engine had only be off for about 5 minutes. However I will have the battery tested.
Last edited by Swiss Nick; 09-17-2004 at 12:14 PM.
