Hiya guys, I have recently bought a lexus i220d on a 09 plate, I have read loads of feedback, ( all useful) on the fact that a common problem is white smoke with the smell of diesel, I have had the dpf filter cleaned, they say it may be the 5 th injector, before I do that, some say disconnect the bty, my question is if I do this would I lose the radio or would the engine management light come on, ad it's keyless would that effect it, if there is a code I need to put in, as the ecu will adjust and reprogram it's self, please help as I am not mechanical minded
