Under the hood, driver's side (LHD models) at the firewall, between the master cylinder and the fender, a large black box, hard to miss. Open it up and inside you will find your fuses.
If all the gauges are dead, I would ask if you have recently pulled the instrument cluster. If so, perhaps you didn't plug in the connector properly.
'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.