1999 Mercedes-Benz E320 Q&A
1999 Mercedes-Benz E320 Question: A/C and Heat not working
So my car's heat just stopped working one night. The only times that it has worked is once when i hit a huge pothole or once when i jump started a friends car, and also when it was between 50 and 70 degrees outside but even then it doesn't always work. please help! winter is too cold for a 6 month old here in mn :( - MalyDaly13
Is it the fan that quits running? - ProfessorG
The HVAC sends .8 - 6v to the resistor mounted by the blower, whpk wire. Remove the lower hush panel to expose the blower and resistor, most of the time the blower will run at low speed not realizing it when the resistor is bad. Check voltage at whpk wire while adjusting the fan speed- .8 low to 6.0 max - bad007
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It blows only cool air no heat. A/C still working ok.
Although my car starts fine, my hazard lights, radio, headlamps work fine, my display including time, temperature, signal lights, A/C and Heat will not come on. What could be the problem?