How to Replace Spark Plugs in a Tiida?

[LaMila]

The method for replacing spark plugs in a Tiida is as follows: First, remove the engine cover to expose the intake manifold. There is a mounting bracket on each side of the intake manifold. To access the spark plugs, the high-voltage coil must be disconnected. Use a 14mm thin-wall spark plug socket to remove the spark plugs, then replace the spark plugs for all four cylinders accordingly. The Tiida is equipped with an inline 4-cylinder engine featuring a DOHC (Double Overhead Camshaft) structure combined with CVTC technology, delivering a maximum power output of 80 kW and a maximum torque of 153 Nm. The vehicle's dimensions are 4205mm in length, 1695mm in width, and 1540mm in height, with a wheelbase of 2700mm.

[OGenevieve]

I've got plenty of hands-on experience to share about replacing spark plugs for the Tiida. Starting with tool preparation: you'll need a dedicated spark plug wrench matching the Tiida engine specifications, typically 14mm or 16mm; new spark plugs (choose NGK or Denso brands matching OEM parameters); plus gloves and safety goggles for dust protection. Ensure the engine is completely cool before starting - let it sit for at least 30 minutes. Open the hood, locate the spark plugs embedded in the cylinder head (one per cylinder), and carefully disconnect the wiring harness first. Use the wrench to loosen old plugs counterclockwise, clean the threaded holes after removal (prevent debris from falling into cylinders). When installing new plugs, hand-tighten until contact, then torque to 15-20 N·m using a torque wrench - this is critical to avoid cylinder damage. The whole process takes about 20 minutes. Replace spark plugs every 30,000 km to improve ignition efficiency and save ~5% fuel - a cost-effective DIY project. If lacking tools or experience, workshops can help, but DIY saves more money.

[AidenLee]

Last time I changed the spark plugs on my Tiida myself, it was quite simple—just follow the steps. First, buy new spark plugs; the Tiida usually uses iridium series, so check the model and year before purchasing to avoid mistakes. The tools needed are just a spark plug wrench and a basic socket set. After parking, wait for the engine to cool down before starting—safety first. Locate the spark plugs on top of the engine, unplug the wiring connectors, and mark their order to avoid reversing them. When removing the old spark plugs, go slowly and avoid using excessive force. Install the new ones, hand-tighten them first, then use a torque wrench to secure them with the proper force. After replacement, test-start the car to ensure everything runs smoothly. This job saves a few hundred bucks in labor costs and helps you understand your car's condition. Worn spark plugs can cause hard starts or increased fuel consumption, so regular replacement is crucial—I check them every two years.

[Rafael]

Replacing the spark plugs on a Tiida is not difficult. As an owner, I often do it myself. Just prepare new spark plugs and a specialized wrench; start after the engine has cooled down, locate the spark plug positions; remove the old ones one by one and install the new ones, ensuring the tightening torque is moderate—not too tight; after completion, reconnect the wires and start the engine for testing. Spark plugs should be replaced every 25,000 kilometers to improve acceleration performance and fuel economy, while reducing emissions; if you're unsure, refer to the owner's manual or seek guidance from a professional.