How often should the Q5 spark plugs be replaced?
2 Answers
Q5 spark plugs are generally recommended to be replaced every approximately 30,000 kilometers. Spark plugs are a key component of the car engine's ignition system, responsible for introducing the high voltage electricity generated by the ignition coil into the engine cylinder, where a spark is generated across the spark plug electrode gap to ignite the air-fuel mixture. The Q5 is a mid-size SUV with dimensions of 4753mm in length, 1893mm in width, and 1659mm in height, and a wheelbase of 2908mm. In terms of power, the Q5 is equipped with a 2.0L turbocharged engine, delivering a maximum horsepower of 190PS, a maximum power of 140kW, and a maximum torque of 320Nm, paired with a 7-speed dual-clutch transmission.
For regular SUV models like the Audi Q5 that I usually drive, the manual typically recommends replacing the spark plugs every 60,000 km or 4 years. This depends on the type of spark plugs you use—copper ones need more frequent replacement, around every 20,000–30,000 km, but most new cars come with more durable iridium or platinum plugs that can last over 70,000 km. Don’t slack off—worn spark plugs can cause engine shaking, skyrocketing fuel consumption, or even failure to start. Remember to check them during routine maintenance; you can also test their resistance with a multimeter to gauge their lifespan. I replaced mine myself last year—it’s simple with basic tools. Safety first: faulty spark plugs destabilize engine performance, and stalling on the highway is a major risk. Regular replacement actually saves money—just a few hundred bucks each time—preventing costly engine repairs later. In short, making it a habit is the most practical approach.