How do you fit spark plugs on a Hyundai i30 1.4 2008?

To fit spark plugs on a 2008 Hyundai i30 1.4, first, ensure the engine is cool and disconnect the battery. Remove the ignition coil or spark plug wires by gently pulling them off the spark plugs. Use a spark plug socket and ratchet to unscrew the old spark plugs, then check the gap on the new plugs before installing them. Finally, screw in the new spark plugs by hand to avoid cross-threading, and reconnect the ignition components before reattaching the battery.