Let's see is surely the five -cylinder engine right? The bijias go in the center of the cylinder head, which to reach them is not easy, according to the model, if it is turbo it is very easy you just have the plastic cover from the upper part of the engine and you will find the coils that if I do not ekivo are fastened with screws you remove the screws and take out the coils and there you have the spark plugs.
The atmospheric is totally the same just that you will have to kitar the admission collector that passes above the plastic cover of the motor and follow the two steps before.
I hope you are worth helping. all the best.