Bank2 [Cylinder #2, #4, #6]

Disconnect the battery negative (-) terminal.
Remove the engine cover.
(Refer to Engine Mechanical System - "ENGINE COVER ")
Disconnect the ignition coil connectors (A).

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Remove the ignition coils (A) after removing the bolts.
Tightening torque:

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

Courtesy of KIA MOTORS AMERICA, INC.