When every you replace a failed compressor-

You are faced with metal in the system. I've pulled pieces of the compressor out of the lines which are quite sizable- the size of your finger tip.

It is customarly to flush heavily! So, you need o-rings and take the system apart as much as possible and flush each part. Always replace the expansion valve. It's a place for metal to collect, and any damage or leakage would require taking the system apart again.
I prefer something a little stronger than mineral spirits. Naptha or acetone, but everyone has their preference. Put a slug of liquid in the line and blow it through the system. You'll need some rags in a container on the other side. Repeat until you get all the old oil and residue out of the system. It should come out clean... You'll need to add oil to several parts of the system. Button it all back together, evacuate and fill. Your probably looking at $400-500 in parts.

This is the time to replace or rebuild hoses(depends on weather you are talking high or low side). Look for leakage(oily hoses). It's also a great time to replace the firewall seal were the lines go through.

I've got a seal FS if you are interested.


Sincerely,

Michael

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Michael McGuire
83 300d
01 vw A4 TDI
66 Chevy Corsa
68 GMC V6 w/oD
86 300E