Help for an Xantia

Greetings for having this page pedas to help rookies as I am going to tell my problem, I have a Citroen Xantia of 1997 1.8i 16v of 112 and it is gasoline has a central control air conditioning to turn on the car you have to put a key, well with all this data I comment I have two days that the car has a hard time starting and when after a 15 minutes or in a semaphor Inpess to start it. And I have it in the garage I do not take it out of it because money I do not have at this time to take it to the mechanic but what I ask is a guidance so that the mechanic does not stay with me. Thank you in advance.

Well, I am that I am new on this page, but from Cohes something I know ..., the workshop will check it to you and why you comment if you have never touched it are the cables and spark plugs or something more serious and expensive would be the coil or something electric with respect to the ignition !!!!! I hope it helps you to guide you.