Tail Light Switch problems of the 2014 BMW 328

Was getting warnings about left rear brake and turn lights malfunctioning for months that would turn on and then go away. On christmas day the brake light and turn light for left rear came on and stayed on. I went and bought bulbs to replace them since at that point the lights were no longer working (instead of a warning that would come on then go right back off once the brake was pressed or left turn signal was used). I took the tail light assembly off to replace the bulbs and once I disconnected the wiring harness I discovered that the ground pin was melted off the tail light side of the connector and stuck into the wiring harnesses. I have never made an NHTSA complaint before, but felt this was dangerous between the fact that 1 it pulled enough current to melt the wiring pin into the harness and 2 I was driving down the road and lost rear brake tail and turn lights on the left side.

Fault in airbag on screen, comes on and off. Started around 61,513 miles. Exact message "fault in airbag, belt rensioner or belt-force limiter. Few days later, check engine comes on, along with high rpm's, while struggling to accelerate. 12/10/2018 engine is extremely loud and dropping off at dealer. Also back tail lights have moisture, back passenger was replaced a year ago. Driver side now needs replacing.