Called Lexus Birmingham for a quote on a 9 year service - £240 with my discount, which i thought was a bit high. So I called Lexus Hanley, and they quoted me £133 + my discount :D Well chuffed with that, dunno why the prices are so different :duh:
Asked the guy on the fone about the problem with my car, he said its nothing to worry about cos if it was serious the engine management light would've stayed on, but i think i might get a diagnostics kit just in case i need it again.