Depending on temperature and humidity it doesn't sound that far out of spec. I don't have the 124 service manual handy, but it runs higher than you would expect on the high side.

If the expansion valve was clogged you would get reduced cooling due to the restricted refrigerant flow. If it cools OK, doubt you have a problem there.

No such thing as air in the condenser. Any air in the system would circulate, along with the refrigerant. Definately not a good thing having air in the system, but doubt this is an issue.