W221 AC problem
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W221 S320CDI 2007
W221 AC problem
Hi everyone,
I’m having a strange issue with the air conditioning on my 2007 Mercedes W221 S320 CDI.
The A/C works only intermittently. Most of the time it either blows warm air or doesn’t seem to cool at all.
Some symptoms:
* Sometimes the A/C suddenly starts working when the engine reaches around 3,500 RPM, but then it may stop working again shortly afterwards.
* Occasionally it starts working while driving without me touching any settings.
* When it does start working, sometimes it stays on for a long time, while other times it only works briefly before stopping again.
* There was one occasion when the A/C was working and I turned the temperature to maximum heat, but it continued blowing cold air (just with weaker airflow).
* I’ve noticed that if I leave the temperature set to the minimum (LO), the A/C sometimes continues working. However, if I increase the temperature even slightly, the A/C may stop working completely.
* Sometimes the airflow is present but the air is warm instead of cold.
* Other times it feels like the system is barely blowing at all.
Has anyone experienced similar symptoms on a W221?
I’m having a strange issue with the air conditioning on my 2007 Mercedes W221 S320 CDI.
The A/C works only intermittently. Most of the time it either blows warm air or doesn’t seem to cool at all.
Some symptoms:
* Sometimes the A/C suddenly starts working when the engine reaches around 3,500 RPM, but then it may stop working again shortly afterwards.
* Occasionally it starts working while driving without me touching any settings.
* When it does start working, sometimes it stays on for a long time, while other times it only works briefly before stopping again.
* There was one occasion when the A/C was working and I turned the temperature to maximum heat, but it continued blowing cold air (just with weaker airflow).
* I’ve noticed that if I leave the temperature set to the minimum (LO), the A/C sometimes continues working. However, if I increase the temperature even slightly, the A/C may stop working completely.
* Sometimes the airflow is present but the air is warm instead of cold.
* Other times it feels like the system is barely blowing at all.
Has anyone experienced similar symptoms on a W221?
