Citroen C4 Check Engine Light

Hello, I Got A Citroen C4 Picasso, Year 2008, 1.6 Hdi The Problem Is That The Car Does Not Communicate With Lexia, I Had The Job At It...

My Car Drives Really Well And Starts First Time During The Day But Starting On A Cold Frosty Morning Is Very Difficult. Sometimes It Takes...

I Am Looking At Buying Either Xcardiag Can Obd2 Code Reader ($189), Or The Cheaper One, That Gives You A Booklet To Look Up The Codes...