2003 ml320 i have no air coming out of front defrost vents
need help thanx maria

 

hey there sounds like you have a defroster flap motor problem which is very common on ML's-the only thing is that its not the motor that usually goes bad but the plastic arm the connects the motor to the defroster flap-they crack and then the tension is released which allows the motor to spin freely inside the arm which causes no movement-the defroster flap sits on the drivers underdash panel by the center console-hope i can help out im a certified MB tech hope i led you in the right direction