How often should the spark plugs of the Tiguan be replaced?

[LaEvan]

The spark plugs of the Tiguan should be replaced every 35,000 kilometers or every 48 months. The function of the spark plugs is to introduce the pulsed high voltage electricity generated by the ignition coil into the combustion chamber, using the electrode to generate sparks to ignite the air-fuel mixture and complete combustion. In terms of configuration, the Tiguan is equipped with an ESP body stability system, EBD electronic brake force distribution, and ASR traction control. The Tiguan has a body length of 4506mm, width of 1809mm, height of 1685mm, and a wheelbase of 2684mm. Its engine has a maximum horsepower of 150Ps, maximum power of 110kw, and maximum torque of 250nm.

[StOlive]

I've been driving my Tiguan for almost five years now, and spark plug replacement is something you really need to pay attention to. According to the maintenance manual, spark plugs should generally be replaced every 40,000 to 60,000 kilometers, but it depends on the type: standard copper plugs have a shorter lifespan and need to be replaced around 30,000 kilometers, while iridium or platinum plugs can last longer, possibly up to 80,000 kilometers. I've experienced it firsthand—after changing them at 50,000 kilometers, the idle became smoother, the engine started more easily, and fuel consumption also dropped noticeably. Keep an eye out for symptoms like rough idling or sluggish acceleration—those are clear signals. Don’t delay, because if the ignition fails, engine carbon buildup can become severe, leading to costly repairs. Regularly check the electrode gap and have them serviced at a reputable shop—it’s simple and reliable. Remember, replacing spark plugs isn’t just about maintaining performance—it saves you money and hassle in the long run.

[DiBrianna]

As a car owner, the replacement interval for spark plugs depends on several factors. For the Tiguan model, the manufacturer recommends changing them approximately every 30,000 to 40,000 kilometers. However, actual wear is influenced by driving habits—frequent city driving with traffic congestion accelerates wear, while more highway driving extends their lifespan. I've done simple checks with tools—if the spark plug electrodes show erosion or excessive gap, they need replacement. Neglecting this can lead to significant consequences: noticeable engine vibration, a 10%-15% increase in fuel consumption, and potential long-term damage to the cylinders. While you can measure resistance yourself, it's safer to have a professional handle it. The material of the spark plug is also crucial: copper plugs are cheaper but wear out faster, while platinum ones last longer. Regular replacement ensures your car runs smoothly.

[JulietFitz]

I often drive the Tiguan for trips, and the spark plug replacement interval is based on experience. Volkswagen recommends changing them every 30,000 kilometers or so. After reading it in the manual, I followed this guideline—each time after replacement, the engine responds faster and starts without hesitation. Briefly explaining why: old spark plugs can cause poor ignition, like the car shaking at idle, or even increasing emissions. Checking them yourself can save trouble—for example, visually inspecting if the electrodes are blackened or burnt is a sign they need replacement. A related point is that replacing spark plugs isn’t expensive, costing a few hundred yuan each time, avoiding bigger issues from neglect. In short, regular maintenance boosts performance.