Hi Everyone!
I've ended up with an E46 with the airbag light on, and from looking around online, it appears that a common cause is some module under the passenger seat. I went under there, and there are wiring connectors, but they're not connected to anything, and there is no module at all.
My question is, was that module installed on every single E46, and someone's removed it - or was it optional, and the light is caused by something else?