Since the RF and LR windows have stopped working, replace the fuses. The window are paired RF/LR and LF/RR. Don't just look at the fuses, just change them - looks can be deceiving.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.