First thing ... If de SRS airbag lights are glowing dat means there is no SRS airbag ...Which means de car had an awsemmmmmmmmmm accident !

Next suspension... Noise frm it ... Might b of de axel or de Springs or of de Teeth of Axel .. Whch r a quite costly repairs .. Check if de Seat bealts r ok or not ...
Spark plugs arent very big issue ..