how do I find out if I have R134a or r12 ac system?

[jaydeep]

I have 1992 325ic. How do I find out if I have R134a system in my car? What should I look for?

[Kershaw]

pop your hood, look at the shock tower. does it say it was retrofitted?

tbh though, if you have a 1992 it was probably dealer retrofitted. in 1994, r134a was the industry standard and it would probably have been converted under warranty.

[kway]

Look at the charge fittings. R12 look like tire stems, r134a look like big air tool connectors.

[reelizmpro]

I would assume not, unless it was retrofitted.

[Kershaw]

Look at the charge fittings. R12 look like tire stems, r134a look like big air tool connectors.

this too. i meant to add that.

[der affe]

Taste it and report back with your findings.............

R134a has a smell like cow manure added to it also, not that you would want to take a deep breath of it though.

[Sailor37]

It smells especially different while smoking a cigarette, or near an open flame, but not that i would try that either.