Hello! On my Saab 9-5, 2.0T, EZ 01.2003 the message Check Engine lights up. The car was 3 months ago and had to be bridged for the first start. Can this message also come from the insufficient battery? In the logbook it says that this occurs in case of an error in the fuel or ignition system. And can the message be deleted? During the highway ride came suddenly “oil level testing” in the on-board computer. The oil level was still good and I still have some oil after g In the logbook it says that this message only occurs with diesel models. The message comes now always when it is started. For both messages applies : The Saab drives inconspicuously – there is no power inlet. Thanks in advance!