2001 A4 1.8 Turbo, Instrument panel guages work, except the heat guage. Also, middle digital guages have lines that bounce around. I bought car used. 79k miles, been taken care of well. HELP!

 

The digital gauges always have pixelated lines and dots missing etc on cars of that age, is that what you are talking about?

What is the heat gauge? Do you mean oil temp or coolant temp? Maybe the sensor is broken and that's why it's not giving a reading.

 

yea you might need a new coolant temp sensor