just as they write in the post and answers, when the engine is cold, I will switch on the ignition and wait quite a long time or even repeat it 2-3 times, the car will start immediately, but day by day it is getting worse and for example this morning the car did not start, cranks but does not start, with the help of a friend who helped start the car on cables, engine fired without much problem but in the afternoon when it was warmer. that's why I'm wondering if maybe the fuel pump is nearing the end and there is no more power to supply fuel