It's a misprint in even the '03 brochures. All of the C-classes have incandescent signal mirror bulbs, not LEDs as stated in the brochures. Retrofitting is probably possible with some work, however, a load equaliser will have to be wired in to prevent a malfunction warning in the driver information system display.Drew, are the mirror turn signal bulbs led's in the sedans? They are incandescent in the coupes.