How do you add freon to a 2001 BMW 325Ci?
buy 2 cans of R134 and thetool with hose with a pierce and control knob. Crank engine, cut AC on high blower and windows closed. Find the low side drier cannister and filler service port. Attach can hose to low side fill port- turn knob clockwise to puncture can and counter clockwise to release freon into system. Watch and feel drier as it will be getting cold – or should be. If you have poor AC then one can may do the trick. Be careful after that -that you do not add too much from another can. If you can get 40 degree air out of the vents you are doing goood. Too much freon can damage the compressor in cooler weather if you use the AC. type in RS12A on your search engine. It’s an alternative gas.
