It's A/C season again in New England and just noticed that gas was coming out of the top of the compressor. It's a 1988 300 SEL that has been converted to 134 some years ago.
I would like to arm myself with all the O rings and seals that I need before starting the job. I believe that it's a nippondenso unit, could use some hints from some of you experts that have gone through this process.
Also the best way to recharge sytem, I picked up a set of manifold gages and can go somewhere to evacuated system if needed.

Can this be done with compressor in car or not?

Thanks in advance for any replies.

Acerejo