Offroad-Express

hi

could well be glowplugs. if you have a multimeter or a bulb and a bit of wire, you can test to see if you have power to the rail and see if the glows have died without having to take the glows out.

no idea about insurance. glows don't cost much so probably not worth it. also they may class it as wear rather than breakage.

Nissans are real bad for the glow timer not matching the light. Let it glow and wait for the click of the glow circuit turng off rather than the light and see how it starts. If it still starts bad check the glow plugs.