The part in detail:

Part B66021043 , AMG Door Sill Panels- illuminated, set of 4

Type:AMG Door Sill Panels- illuminated, set of 4

The door sill panels, each consisting of the polished stainless steel panel and a Plexiglas insert with the AMG logo, are supplied with electricity via a door contact switch and light up in conjunction with the interior lighting when you get in or out. The corresponding light strips must be ordered separately. We recommend having the door sill panels fitted by a Mercedes-Benz workshop.

Price: £690.78