hi i have a bmw 323i of the year 2000 i have been having problems starting it this last days, i thougth it was for the battery because yesterday i started it with the help of another car battery and it worked well, but today when i try to start it it just make a sound (clac,clac,clac) and i used the help of the other car to start it using wires but this time it id not start, so i removed the battery and use another one with good charge and surprise it does not start, i dont have any idea of why it does not start, can you help please.


thanks.

the battery terminals (bornes) are clean.