Chaps Is there a pollen or cabin filter on the 355? My blower is working and there's airflow, but it feels less powerful than I remember? Thinking something maybe slightly blocked...
By default there's no filter. I'll let others chime in on what might be the cause of your lower (perceived) airflow. This filter can be inserted into the cabin intake but nothing exists in the OEM system that filters the air. https://www.ebay.com/itm/184446784385 (or search for Mopar part number 68033193AA) Reference thread: https://www.ferrarichat.com/forum/threads/355-cabin-air-filter.557579/
That's awful, correct fitting of one one if one were to install one, but it does obstruct fresh flow yes. Originally they did not have any fitted. https://www.ferrarichat.com/forum/threads/cabin-filter.597182/
Ha - good call. I didn't look closely at that thread and certainly didn't install my Mopar filter all ghetto-style. It does require a little bit of convincing the filter to get into the space but man I didn't just lie it on top and leave it at that!
There are a few possible causes, electrical problems reducing voltage to the blower motor, diverter flaps half open & diverting air where you don’t want it, control modules or switch modules not functioning correctly, there are a ton of threads. One problem I experienced myself was the black foam disintegrating inside the HVAC unit behind the dash. The 355 HVAC system was built with black foam/sponge material inside it. The sponge was a kind of sealing joint between the ducting and I guess to stop squeaks and rattles. Anyway, on most cars, that dries up and disintegrates, mine was about 15 years old when it went. It clogged the vents as it was disintegrating. Anyway, after it had worked its way out and I’d vacuumed it up off the carpet, the hvac worked better than ever!!
Ironically, on my car, it was the non-disintegrating vane rubber which was mostly jamming my flap. The foam seems to leave a film of rubber on the contact surfaces. The intact one was the most robust and caused the most friction. If you have an issue, try using dry lubricant first or clean the contact surfaces (if you can get access to the vanes from above/below)
