Yeah they were surface mount LEDs, and yes they were bigger than the other doors. about 2.5mm x 2mm from memory. i measured the voltage with all four LEDs still on the board (so the load was correct) i thin it was 2v... anyway, i just used white SMD LEDs, exact same ones i used on all the other doors, they work perfectly, even light dispersion, and same colour/brightness of all the other panels

goodluck doing yours!