Heater not hot and A/c not cold
 

Please help !!!! Does anyone have any idea why both my heater and a/c are not working right. Heater and a/c both blow luke warm. Heater will get a bit hotter when accelerating. They were both working excellent then just went warm. It also seems like it is not blowing as hard as usual but this part could just be a part of my imagination.
Thank you ! My car is a 1992 325i

I wonder if you might have a couple of problems going on here. First, have you had the a/c system checked for leaks? Second, there could be a crack in the circuit board of the climate control computer. Check this site out: http://www.macadamizer.com/bmwfix.html

Also add to that list possible low coolant and/or failing water pump. Are there any leaks in the cooling system? The AC could be low charge, bad compressor or could be a bad board as 3050 suggested.