
Steps to replace the spark plugs in a Verna: Open the hood, lift the plastic cover of the engine, remove the high-voltage wires, and mark the position of each cylinder to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing them, check for any leaves, dust, or debris on the outside and make sure to clean them thoroughly. Place the new spark plugs into the spark plug holes, hand-tighten them a few turns, and then use the socket to tighten them further. Reinstall the high-voltage wires according to the firing order, and then secure the cover. Spark plug replacement interval: Under normal maintenance conditions, spark plugs should be replaced every 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine type, so it is recommended to follow the user manual. You can refer to the following standards for maintenance and replacement: Platinum spark plugs should be replaced at 40,000 kilometers, standard nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000 to 80,000 kilometers.

Replacing the spark plugs on a Verna by yourself isn't too difficult. First, gather the necessary tools: a spark plug socket, torque wrench, and possibly an extension bar. You'll also need new spark plugs—stick to OEM recommendations like NGK or Denso, and check the manual for specifications. Before starting, disconnect the negative battery terminal to avoid electrical hazards. Open the hood, locate the ignition coils (usually atop the engine), carefully loosen their mounting bolts with a wrench, and unplug the connectors. Gently pull out the coils without forcing them to prevent damage. Unscrew the old spark plugs and inspect for electrode wear or carbon buildup. Clean the installation holes of debris, apply anti-seize lubricant to the new plugs' threads, hand-tighten them first, then torque to the manual's specification (typically 10-15 Nm for the Verna). Reinstall the coils, reconnect the battery, and test the engine for smooth operation. Replace every 30,000-40,000 km to maintain fuel efficiency and power. I've done this a few times—copper-core plugs offer great value and performance, and the whole job takes under an hour.

When it comes to changing spark plugs, as someone who does this regularly, I believe the key is having the right tools and parts ready. For the Verna, a standard 16mm spark plug wrench will do, plus a short extension for easier access in tight spaces. Opt for new spark plugs from Denso or NGK that match the OEM specifications—don’t cheap out and risk engine damage with the wrong model. The sequence matters: First, disconnect the battery’s negative terminal for safety to prevent sparks from igniting fumes. Then, locate the ignition coils on the engine; the Verna’s four-cylinder setup usually has them lined up top for easy identification. Use the wrench to carefully remove coil screws and connectors—avoid yanking to prevent wire damage. When extracting old plugs, clean any oil residue and blow out the holes with compressed air. Apply a dab of dielectric grease to new plugs before installing, and torque them precisely to around 12 N·m with a torque wrench. Finally, test for smooth operation—steady engine noise signals success. Safety tip: wear insulated gloves and steer clear of heat sources. DIY-ing this saves money, with tools costing just a couple hundred bucks for years of use.

When I first learned to change spark plugs, I started with the Hyundai Verna. Beginners, don’t panic—first, check online for the manual location or video tutorials to locate the ignition coils, usually at the top of the engine. Prepare basic tools: a spark plug socket wrench and new spark plugs compatible with the original, such as NGK BKR6E-11. Safety first—operate only after the engine cools down and disconnect the battery to prevent accidents. Slowly unscrew the coil bolts and unplug the connectors, then use the wrench to remove the old spark plugs counterclockwise. Check the electrode wear to decide on replacement. Install the new spark plugs by hand-tightening them and then giving an extra half-turn—don’t overdo it. Common mistakes include improper torque control or debris entering the cylinder, so keeping the holes clean is crucial. After completion, start the engine to check for smooth acceleration without shaking. This DIY method saves on repair shop costs, but allow extra time for practice on your first attempt.


