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How to Replace the Spark Plugs on the Hyundai Sonata

Model: Hyundai Sonata LF - Years: 2015, 2016, 2017, 2018, 2019
Part: Spark plugs

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Video tutorial

Here are the main instructions for removing and replacing the spark plugs on the Hyundai Sonata. First, open the bonnet and begin removing the plastic cover on top; then disconnect the spark plug connectors, using a socket wrench with an extension to unscrew and remove them, as shown in the video.

Now install the new spark plugs, ensuring they have the same thread pitch; screw them in by hand and then tighten gently with a wrench to the correct torque, following the video tutorial to the end!


Updated on 18 July 2026 by ScegliAuto


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by ScegliAuto

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