hello all, 2006 x5 30. 70k mi. never had a problem until this spring when my pass. side started to blow warm. after reading all the posts i decided to try a shot of r134. went to pep boys and bought a can of AC PRO COLD. part number acp100. it is foolproof as it comes with a pressure gauge and 20 inch hose. problem solved ! after 6 years i finally had to add some r134. this was so easy and foolproof stevie wonder could do it with his eyes closed. pass side now blows ice cubes as does driver side. go online to ACPROCOLD.COM you cant go wrong. hope this helps, frankie p.