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Problem with heater, 98 s500

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Old 11-14-2012, 04:59 AM
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02 e39 530i. 98 W140 S-500
Question Problem with heater, 98 s500
hi guys, i have a problem with heater, when i turn on the heater it sounds like its working but it doesnt blow hot air, the AC works perfectly, recently i checked the motor of the heater it turns without problem, but it doesnt blow hot air, any suggestions what can be the problem? tnx
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Old 11-14-2012, 05:59 AM
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94 S420,95 S500 ,96 S500
Originally Posted by ED JAN
hi guys, i have a problem with heater, when i turn on the heater it sounds like its working but it doesnt blow hot air, the AC works perfectly, recently i checked the motor of the heater it turns without problem, but it doesnt blow hot air, any suggestions what can be the problem? tnx
It could be a number of things, thermostate or duo valve getting stuck, Switchover valve or climate control failure. I would switch the thermostate first.. and see if that changes anything.
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