Hello everybody I love this site!! I have a 2005 X5 I installed a set of bmw wheels style 63 staggerd 10 back 9 front. My tire pressure light keeps coming on. The first time my tires where low 3 of them, 1 rim and tire is brand new which is on the front right the rest where used. Would that cause my problem? or do I have a slow leak in one of the wheels. Thanks SIGNMARK