After 2 years of use K1 in car

My recommendations

1.  Turn off the motion sensor 
2.  Format the microSD card directly in K1 every month
3.  Use only the original power supply (5V, 2A).
4.  Firmware:  k1s-r180_en_KPH
5.  Use good microSD cards, for example WD Purple: 
https://www.wd.com/products/surveillance-solutions/wd-purple-microsd.html