Depends on the year. 1994 and older would use R12 while models from late 1994 till present will use R134a. If you have a German Spec BMW chances are it wont have Air conditioning at all unless it is a newer model. Its best to ask your mechanic to check it out for you because using the wrong type of freon can damage your entire A/C system.
Hope this helps
134 A Freon
R134a
R134a
R-134a
What kind of freon for bmw 323i 2001
Would have been built for R12, can be converted to R134a.
my car a/c smells like freon? Type your answer here...
What Ac refrigerant freon is required in 1989 BMW 7-Series? What Ac refrigerant freon is required in 1989 BMW 7-Series?
== == Was built with r12, can be converted to r134a.
BMW
R-12 unless converted to R-134a
R134a