 This is my second A4.  First one was great(2012). No issues.  This one (2015) had some issues.  At 28k, the engine light came on.  Service found a cracked intake manifold and bad wheel bearings in the left front.  Would have been 5k in repairs if not for the warranty.  The depreciation is also ridiculous.  I suspect the frequency of repairs after warranty may be the reason.  Great car to drive, but not to own past warranty, imo.