AC Recharge

Hi all,

I did a search on AC recharge and can see this is a very complicated process for a newbee like me.

My AC worked great last year, did not use over winter (no no) and now blows ambient air.

Not sure where to begin diagnosis. I would like to check refrigerant level, have benz instructions on this.

If low, how do I go about recharging? Looks like hi and low side thing is important. Does the benz cd address this issue?

I am intimidated by AC but don't want to get screwed when getting repaired. I am trying to get edjumacated.

Any advice?

Thanks,
Joel