Positive battery cable heat up cause fire above battery. Blow off wire worked blowing off. Distribution box and power pole connection sparking heating up causing arc fire. No recalls for my specific Vin but 2008 through 2012 recalls this part but not for my vehicle. 2009 335 convertible. ? $1132 to fix. 9 months ago 2021 BMW could not find problem recommended changing my alternator never recommended changing the recalled part that I am now having changed at my own expense. Very scary I have the car returned to me but I was only able to drive limited distances as the cable deteriorated I was limited more and more use of the vehicle until ultimately I drove to BMW to have it fixed and the wire exploded a mile before exiting the freeway very scary.