Quote:
Originally Posted by F32Fleet
Blue isn't carbon impregnated right? If not that might be why.
|
It has a layer of carbon:
https://www.fcpeuro.com/products/bmw...119237555-blue
The overall structure may be different though, aside from the blue layer on this one. To me it
sounded like the new filter made things flow a little better/easier, could have been placebo though.
Quote:
Originally Posted by F32Fleet
Try leaving the thermostat between 72-76F degrees with AC 'On" and fan speed near MAX.
Living in the humid SE US and never a problem with this set up in a BMW.
From my own experience operating the fan at low speed with thermostat set below 72F is more likely to result in a smell. I'm not exactly sure why.
|
Low fan speed and low thermostat temp likely leads to ice/frost buildup on the condenser, then when you park the ice melts and while the water can drain, moisture remains in the system. The standard advice for any car is to turn the AC off a few minutes before your destination and run the fan on high speed to dry out the condenser and entire system. You never really want to drive with the AC on until your destination and turn off the car because moisture will condense on the condenser if its still cold.