Here goes,,,,
Discovery 300 tdi, bumper bulb blew this morning rear left,replaced bulb now I have double flashing lights but only on left side.right side works fine,hazards work fine just left side
Very confused any help please

I had trouble with my rear indicators,try taking the plugs off give them a good clean and rub the contacts up with a bit of sand paper.Worked for me.
You get a lot of mud and water sitting up behind the bumper.
Good luck.