E30 Zone

hi zone, got a bit of a problem with my front right indicator it don't work, the front left indicator works and both the front right and left indicators work when i put the hazard lights on. I've replaced both fuses for the indicators and still the left one works perfect and the right one still refuses to work. Any suggestions whats wrong ? and how to fix this ?

thanks in advance

Usual problem is corrosion, as the front indicators aren't waterproof.
The corrosion is on cheap bulbs though, not the holder. the BMW bits are made of better stuff.
Only other likely problem is the connector behind the indicator, or possibly a broken wire to it. These connectors have to be refitted with one hand while carefully balancing the bumper with the other, when replacing it, and if you let the bumper fall, it's conceivable you could break a wire.