my first serious car model

hi, i have been working on a cars model after i have learned car modeling from speed titi’s tutorial iand ihave got some problems and i wanted solve them with you ppl so…
the problem apears in the render :

but in blender i see no such thing :

I see the same picture twice, check the paths.

yes i gave both pictures the same path see it know …
i really need help in this one

Are you using a displacement texture on the grille? If so, check the amount of displacement.

yes i was … thank you for the help…