hi there just bought a 1995 mercedes c180 and i have found the left heater light is not working and also the temperature light on dash not working could anybody help me with a diagram of this please

Do a "Search" using the "Search Tab" at the top of the page using something like "c180 wiring diagram". It also helps to title your thread with the problem, something like "c180 dash lights not working". Forum member's often don't look at threads with just the name of the poster as the thread title. On your problem, even if you do find the wiring diagram, first do the obvious and check the fuse that protects the circuit containing those dash lights.