How many kilometers should the spark plugs of the Qashqai be replaced?
3 Answers
The spark plugs of the Qashqai should be replaced every 30,000 kilometers. The working principle of spark plugs is: to release the pulsed high-voltage electricity sent by the high-voltage wire, break down the air between the two electrodes of the spark plug, and generate an electric spark to ignite the mixed gas in the cylinder. The Qashqai is a compact 5-door 5-seat SUV with body dimensions of: length 4401mm, width 1837mm, height 1593mm, and a wheelbase of 2646mm. The Qashqai is equipped with a 2.0L naturally aspirated engine and a CVT continuously variable transmission, with a maximum power of 111 kilowatts and a maximum torque of 194 Newton-meters. Its drive mode is front-wheel drive, with MacPherson independent suspension at the front and multi-link independent suspension at the rear.
That time when I was driving my Qashqai on a long trip, it suddenly lost power during acceleration. Only after asking did I realize the spark plugs needed replacement. Generally, they should be changed around 100,000 km, but I procrastinated until 120,000 km out of laziness. As a result, fuel consumption shot up to 11 liters, and I could feel the engine shaking. Spark plugs are small ignition components, like lighter cores—when their electrodes wear out over time, ignition becomes imprecise. The Qashqai uses durable platinum spark plugs, but the manual recommends regular checks; don’t slack off. The repair cost me a few hundred bucks that time, and the mechanic said replacing them earlier would’ve been a trivial expense of just tens of dollars. Now, I check them at 80,000 km to avoid both hassle and wasted fuel. City driving with frequent congestion wears spark plugs faster, so don’t wait for major issues to cause trouble.
As a car enthusiast, I often do my own maintenance on the X-Trail. Changing spark plugs isn't as scary as it seems - the general recommendation is to replace them every 100,000 km, but I prefer to check the electrode gap every 70,000 km. Just use a spark plug wrench to unscrew the old ones and install new matching models. After replacement, the car starts smoother and fuel consumption drops. Don't wait until you have ignition problems - doing it yourself saves time and money. Try it and you'll see how easy it is.
