This procedure covers 2007 and newer S80 and 2008 and newer V70/XC70s. My 2008 S80 needed a new blower motor. I'll start with a warning...you must have special tool 9997284. Not an option, not a "maybe" ... you must have it to do this job successfully…I wasted two hours devising ways to g...

Sounds like you already explored perhaps the blower might be the issue. The resistor could also be an issue. Depending on your mileage and usage, might be a good time to replace both. https://www.youtube.com/watch?v=urdwPD6G43A As far as not getting hot in the cabin, is that an air temp issue or an ...