Looking for help please.

Removed the front seats and carpet on my wifes 2004 X3 3.0 petrol to replpace the leaking rear washer hose that was fractured.

All sorted put everthing back together again but the airbag light is showing on the dash. I assume this is connected via the yellow matchbox size plugs under each seat. I have unplpugged and rechecked and replugged but light still on.

Any ideas ??

Thanks all