MERCEDES BENZ 190E INSTRUMENT CLUSTER GAUGE

My Fuel Gague Fluctuates/flickers From Time To Time. Is It The Gauge That's Faulty And Should Be Replaced Or Is It Some Other Situation?

1991 Mercedes Benz 190e The Temperature Gauge Occasionally Spikes Then Returns To Normal

The Fuel Guage As Well As The Temperature Guage Is Not Working. I Checked The Fuses And They Appear To Be Fine. Is There A Module Or...