The sub assemblies and components that make up this Headlamp (model W/x E4, E18, E22, E25, E34) include this Headlamp Assy, the most expensive part.
This schematic depicts all components used in the Tl1000s 2000 (y) Headlamp (model W/x E4, E18, E22, E25, E34) partslist.
Of all the components that make up this Headlamp (model W/x E4, E18, E22, E25, E34) the Bulb(12v5w) has the lowest price.