My go to glass cleaner is homemade:
- 60% water
- 20% vinegar
- 20% alcohol (70% is fine).
In a 2l / 2qt bottle of the above add 8 drops of dawn liquid and 1 tablespoon of Simple Green. Cheap and it works.
I want to update my earlier post.
- 60% water
- 20% alcohol
- 20% vinegar
- 8 drops of dawn liquid in a 2l bottle
- NEW 1 tablespoon of Simple Green in a 2l bottle.
Adding Simple Green makes a big difference!!!
Sounds (no pun intended) like the clutch is the problem. Why? The temp of the air coming from the vents is 41*. See if the clutch can be adjusted or replaced without opening up the system. Don't add more refrigerant. It's fine now.
I sent an email to the BMWCCA tech guru and after some back and forth he says it's the driveshaft. OUCH! I'll see if BMW NA can give some consideration considering that the car has just 44k miles on it.