Repair Procedures: Removal

Turn the ignition switch OFF and disconnect the battery (-) cable.
Disconnect the mass air flow sensor connector (A) and the installation clamp (B).
Remove the mass air flow sensor (C) after loosening mounting bolt.
Tightening Torque:

9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb.ft)

Courtesy of HYUNDAI MOTOR AMERICA