What is the spark plug model for Changan CS55?

[RowanDella]

Changan CS55 can use NGK LZFR6AI iridium spark plugs. The spark plug is a component in the gasoline engine ignition system that introduces high-voltage current into the cylinder to generate an electric spark, which ignites the combustible gas mixture. Steps for replacing spark plugs: Open the hood, lift the engine's plastic cover, remove the high-voltage distributor wires, and mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. When removing them, check for external debris like leaves or dust and ensure thorough cleaning. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, then use the socket to tighten further. Reinstall the removed high-voltage distributor wires in the firing order, and snap the cover back into place.

[FranciscoFitz]

Having worked in the auto shop for almost ten years, I've handled quite a few Changan CS55 models. Most of them use NGK ILZKR7B spark plugs, but a heads-up—different model years like the 2017 and 2020 versions might differ by a letter, such as ILZKR6B. I recommend popping the hood, removing the old spark plug to check the engraved numbers directly, or referring to page 23 of the owner's manual for detailed specs. Spark plugs should be replaced every 40,000 kilometers. Delaying this can lead to ignition issues, engine misfires (like it's hiccuping), and wasted fuel costs. If you're doing it yourself, make sure the cooling system is completely cooled down before using specialized tools to avoid accidents. If you're unsure, it's best to get a reliable shop to check—don't risk damaging your car to save a few bucks.

[StIsabelle]

As a car modification enthusiast, I've been playing with my CS55 for several years. The factory spark plugs are usually the NGK ILZKR7B series, but this depends on your configuration. For example, the 1.5T engine version or the Blue Whale version might use different heat range models, such as DENSO's ITV16TT. If you want to upgrade performance, you can try platinum or iridium spark plugs like the NGK LFR5AIX-11, which provide more stable ignition, faster acceleration, and better fuel efficiency. Don't forget that spark plugs are the soul of the ignition system—using the wrong model directly affects power output and engine lifespan. It's recommended to take a photo of the old part for confirmation before purchasing online. When replacing, it's best to tighten them with a torque wrench, as being too loose or too tight can easily cause air leaks.

[LeonardoAnn]

I just helped my friend check the spark plug model for his Changan CS55, which is usually NGK ILZKR7B, but it might vary depending on the year of purchase. For example, the 2022 model switched to an improved version. The best way is to directly check the maintenance section in the user manual or call the 4S store for confirmation. Small parts like spark plugs need to be replaced every three to five years. If they age, they can cause warning lights to flash and sluggish starts. I've tried replacing them myself in the garage, and it's quite simple—just buy a 30-yuan wrench set online. But make sure to note down the old model number; buying the wrong model without knowing can damage the car's electrical system. Usually, just pay attention to whether the engine runs smoothly.

[SanZane]

From a technical perspective, the standard spark plug model for the Changan CS55 is mostly NGK ILZKR7B, with a heat range around 7, which is suitable for the 1.5-liter turbocharged engine. The characters in the model number represent size and material; for example, 7B indicates a medium heat range that is less prone to carbon buildup. The engine control unit relies on precise ignition, and a mismatched model may lead to gap deviation, incomplete combustion, or even trigger fault codes. It is recommended to use an onboard diagnostic tool to read the data stream or inspect electrode wear by disassembling to determine if replacement is needed, with every 50,000 kilometers serving as a reference point. For safety, opting for the manufacturer-recommended parts is advised to avoid modification risks.