W124 A/C needs to be revived...

[sjsfiji]

Hi All,

I bought my parent's car 2 years ago. It's an '87 260E that was hardly driven. I got it with only 52K miles. The A/C doesn't work because of the evaporator according to my indy. I'm guessing it's broken since it was not driven much.

Questions:

1. Where should I take the car in for a proper diagnosis (A/C specialist, Dealer, etc). Should I be charged for diagnostic tests?

2. Do I need to switch to the newer refrigerant by law or something? Pros and Cons...

3. Once diagnosed, should I just opt to fix it myself? What are the costs/time savings...

4. What parts are expected to be broken by not being used for years...

Thanks,