When I purchased my 93 BMW 325i, the air conditioning didnt work. Last year I filled it with refrigent 134a just to see if it would do anything. It worked and continued to work about few weeks. Earlier this year I tried the same thing and it didnt work. I thought maybe I needed more refrigent added but the pressure kept me from reattaching the connection. Today I tried it again and it worked! It was low again.
I found a sight glass today that i never noticed before (dirt/grease covered that fact it was a sightglass). Can it be used to fill AC to the right level? The sight glass is located on the front passenger side of the engine compartment on a line coming out of a canister. When I added the refregent, I noticed a bit of liquid moving through it.
Also anyone priced the cost of fixing a leak?