Mercedes Benz S Class W220 owner have many problems with this car instrument xxxxx problems include no lighting,partial lighting and /or flickering or intermittent lighting,or cann’t see the miles badly .Mainly to repair this dashboard you need replace defective lighting transformer to a new one Function: W220 is one of VOGT electric components that optimized inductive component solutions for a range of different electronic circuits used in the power supply as ballasts control units ,signal transformer systems, sensor systems etc. Many transformers and chokes developed by VOGT have become standard components on the market