Date registered: Jul 2006
Vehicle: 87 Mercedes 300 SDL, 95 s320, 97 e420 (grandma's), 2004 E500 4matic wagon advantgarde
Mentioned: 7 Post(s)
Quoted: 53 Post(s)
Cabin Hvac not working
So, I just did an almost 1400 km trip over the last 2 days. The car mechanically was flawless. However, today in the heat and hot sun, the HVAC wasn't up to snuff. The fan wasn't circulating the air properly. Just to be sure, I took the cabin air filter off and ran the fan to see if that was the problem. Nothing changed.
When switching the position of the airflow, or turning off defrost, nothing changes. One can barely feel the air moving out of any of the vents. Even though today, the air was cold.
What are some common issues that would cause a situation like this? Is there a sticking door? The car also has the charcoal filter, but nothing changed by switching that on and off.
Anything else to try?
Disclaimer: I reserve the right to be wrong, and therefore change my mind about anything at any time, usually for the reason of new information coming to my attention.