Will the 4S store refuse warranty service if I replace the air filter myself?
3 Answers
Air filters and cabin air filters are consumables that can be replaced by yourself without affecting the warranty. Below is a detailed introduction to the replacement cycle of air filters: It should be determined based on the usage of the car: If you feel that the engine power is insufficient, it is very likely that the air filter is not performing its intended filtering function, which may lead to cylinder scoring, and the air filter needs to be replaced at this time. It should be determined based on the driving environment and air quality: If the environment is relatively poor, humid, or dusty, or if there is severe haze or willow catkins, the replacement cycle should be shortened.
As a cautious car owner, I understand that changing the air filter myself could potentially give the dealership an excuse to deny warranty claims. During the warranty period, dealerships sometimes use 'unauthorized modifications' as a reason to avoid responsibility. Although the air filter itself is a consumable item and won't void the entire warranty, if you're not skilled—like breaking wires or contaminating the intake system—they might blame you if engine issues arise. I've experienced a similar situation: a friend once replaced the air filter, which led to a sensor malfunction, and the dealership insisted on charging over 2,000 RMB for engine repairs. To avoid such hassle, I recommend new car owners stick to authorized service centers for replacements. It might cost more, but it's safer and more reliable—just keep the service records as proof. Always clarify warranty policies during routine maintenance to minimize disputes. In short, those with strong DIY skills can do it, but beginners should avoid the risk.
I'm a DIY enthusiast myself and have changed the air filter several times without ever being denied warranty service by the dealership. That's because this is just a simple filter and doesn't involve core mechanical components—warranty terms usually allow owners to replace consumables. But keep two things in mind: first, don't damage critical parts, like messing with computer connectors or air hoses, or the dealership will definitely shift blame; second, keep the purchase receipt and installation photos as evidence. From my personal experience, saving a hundred bucks is minor, but if they give you trouble, you'll have to argue, which can be draining. Honestly, there are plenty of air filter replacement tutorials online—just follow the video step by step, and buy OEM parts for anything unfamiliar. I often help colleagues by teaching them how to do it, saving time and giving them freedom. Still, I recommend regularly checking the engine condition to ensure everything's fine and avoid trouble.
