I need some help

[iZheppoPT]

Well, I'm new in this so well sorry for any error...
So, i recently downloaded a ECU mod (DonnerTechs's), and when i bought it on the mechanic some parts (the eletronic screen and the cruise control menu) fall under the mechanic ground, and I can't pick them up.
I was taking them to car and they simply fall in the ground like its a black hole
How can I recover theese parts?

 

[uiwefiohi]

En el vertedero
English: in the landfill