I have a seat ibiza mk3 1.2l and it is not starting?

I have changed the oil and filter, air filter and sparkplugs but my car struggles to start or not at all , at first it was not starting between 0-6 de

I have changed the oil and filter, air filter and sparkplugs but my car struggles to start or not at all , at first it was not starting between 0-6 degrees but now it's not starting at all, but when she drives she is fine. Could the problem be the alternator or could it be something else ?

or:I have changed the oil and filter, air filter and sparkplugs but my car struggles to start or not at all , at first it was not starting between 0-6 degrees but now it's not starting at all, but when she drives she is fine. Could the problem be the alternator or could it be something else ?

Tags:filter,struggle,