
X1 spark plugs are recommended to be replaced approximately every 30,000 kilometers. If spark plugs are not replaced for a long time, it can lead to various issues such as leakage in the vehicle's ignition system, increased fuel consumption, reduced power, and most importantly, difficulty in ignition, which affects the normal use of the vehicle. Spark plug replacement interval: Under normal maintenance conditions, spark plugs should be replaced after driving 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine. It is recommended to follow the user manual. The following standards can be referred to for maintenance and replacement: platinum spark plugs should be replaced at 40,000 kilometers, ordinary nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000 to 80,000 kilometers. Steps for replacing spark plugs: Open the hood, lift the plastic cover of the engine, and remove the high-voltage distributor wires. Mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing, check for any external debris like leaves or dust and ensure they are cleaned thoroughly. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it further. Install the removed high-voltage distributor wires in the ignition order, secure the cover, and check if any replaced spark plugs are missed.

I've been driving a X1 for over three years and generally follow the owner's manual's recommendation for spark plug replacement, which is typically every 60,000 kilometers. If driving conditions are poor—such as frequent traffic jams, dusty environments, or repeated engine starts—I suggest inspecting and replacing them earlier, at around 50,000 kilometers. Worn-out spark plugs can cause engine shaking, sluggish acceleration, a sharp increase in fuel consumption, and in severe cases, engine misfires leading to more significant damage. For safety, I always check with the repair shop during each maintenance visit—don't skimp on small costs and risk bigger issues. Timely replacement ensures efficient engine operation, saving fuel and protecting components.

From my experience, the original spark plugs of the X1 have a designed lifespan of 60,000 to 80,000 kilometers, depending on the material's durability, such as iridium alloy. Driving habits are crucial—frequent high-speed driving causes less wear, but extensive short-distance city driving accelerates aging. I recommend regularly checking the ignition system data with a vehicle diagnostic tool. If ignition delays or abnormal voltage are detected, replace them promptly. Ignoring this can lead to decreased ignition efficiency, increasing emission risks and even damaging the catalytic converter. After replacement, the engine responds more sharply and maintains stable performance.

As a daily commuter car owner driving a X1 in the city, the spark plug replacement interval is every 60,000 kilometers. The manual states it clearly, but under severe conditions like frequent traffic jams, early attention is required. If not replaced, noticeable engine shaking, increased fuel consumption, and higher maintenance costs may occur. Timely maintenance is simple and efficient.

I place great emphasis on driving safety. For the X1, it is recommended to replace the spark plugs every 60,000 kilometers. Delaying this maintenance may lead to ignition system failure, causing the engine to stall or even break down, especially in cold regions where starting the engine becomes difficult. I regularly check the condition of the spark plugs during routine maintenance to ensure reliable operation. The cost is not high, but it can prevent major accidents—safety comes first.

I've discussed it in the owner's group, the X1 spark plug replacement interval is typically every 60,000 kilometers, as per the manual. Driving habits are often considered, such as faster wear if long-distance driving is infrequent. Neglecting replacement can reduce engine efficiency and slow down responsiveness. Using genuine parts ensures better compatibility, and timely maintenance makes driving more reassuring.


