just for info, mine came on 2 days after I bought car (3 years and 20000m ago), garage said it was O2 sensors on each bank. Car is gloriously LPG so better running slightly rich on gas than lean (apparently). Light has just gone off 250m ago. Surprising how you miss that comforting amber glow so pleased the ABS one has just replaced it !. Happy new year to you all, regards