All,

Looking for someone to walk me through a quick refrigerant recharge on my 98 c230. I literally want to do this over 10-15
min on my lunch hour. I want to make sure I am not going to do any major harm to my system by doing this without an elaborate process or going to the dealer:

1. What type of refrigerant do I use ?
2. Where is the entry port for the refrigerant or refrigerant extension to screw into ?
3. Should the motor be running and should I have the ac running while I am charging the system ?

All info appreciated...Thanks.

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1998 C230
1994 Infiniti J30T
1984 BMW 318i
1987 VW Golf GT
1975 Buick LeSabre Conv.