The spanner light may mean it just needs a service and only needs reset,I think you press the throttle,turn on the ign.and press brake pedal five times and turn ign.off,as for your airbag light would check the seatbelt pretensioner wiring under the seats,split the connection then re connect,sometimes a high resistance builds up bringing on the light,if these fail it may need to go onto a code reader to help with your faults,good luck
cdc, May 2012