Please can someone give me some advice about how to change the heater panel bulbs in a V40. I have: ....removed the three heater knobs ....levered off the facia but I am now stuck. I can see the blown bulbs through the white casing but do not know how to reach them. I assume that you have to remove the switch control but am unsure how. Any help would be gratefully received. I last did this with a 440 and once the facia was removed the bulbs were exposed. This time it is slightly different Many thanks Russell