heater or ac

Hi, new member here. Had a search for a similar issue and found many heater issues but nothing like I am experiencing on my 2013 Leon 1.6tdi. From this forum, I am thinking about buying a diagnostics tool (carista etc.) to see if I can work out the issue. Is this possible? My Problem...

Hi everyone I recently bought my 52-reg Leon TDI. When driving it in the dark for the first time, I noticed that the heater controls are not lit up in red, but the AC light on the AC button lights up yellow when it is switched on. All the other lights on the centre console/dash are lit up red...