BMW Repair: fan and heater control lighting, control lighting, google search

Question
bmw 525 i the lighting be hind the 3 dials on climate control are there bulbs to replace if so how do do it  

Answer
You haven't told me the year, but many of these are internal to the HVAC controller.  

Take out the HVAC dash module.  There will either be small lights near it to light it up, or they are internal.  If internal, carefully take it apart.  The bulbs in these are usually soldered into the boards, and not readily available. Do a google search for what people use for bulbs.