Evening! As mentioned in the subject I haven't specifically found an answer to this question searching the thread. If I upgrade to MCU2 does Tesla replace the CI? My CI is bubbling, Of course, didn't notice until after purchase. Also now concerned about the eMMC age and wondering if I should just upgrade to MCU2. However, if upgrading to MCU2 doesn't replace the CI guess I am screwed spending money to replace both the MCU and CI. Sorry a lot of this is new been reading alot and trying to get a grip on everything....