Can a Car Pass Inspection After Applying Film on the Roof?

1 Answers
DiMaggie
07/29/25 9:39pm
Whether a car can pass inspection after applying film depends on the proportion of the film applied. According to regulations, the national standard for vehicle inspection clearly stipulates that the light transmittance of the front windshield film must be greater than 70%, reflective film is not allowed on the front windshield, and no film is permitted within the rearview mirror area. Which car modifications can pass annual inspection? 1. Replacement of wear-prone parts is allowed: First, the wheel rims cannot be changed as per the driver's license, but the tires can be replaced. Tires are inherently consumable items. If a new car uses the same tires for six years before inspection, it is clearly impossible. Besides tires, wear-prone parts like wiper blades and brake pads can be modified or replaced with other brands without much issue. 2. Interior modifications are acceptable: Most interior modifications are also fine. Installing a dashcam, upgrading the central control screen, adding navigation, or modifying the audio system at your own expense won’t be interfered with by traffic police as long as safety performance isn’t compromised. 3. Air filter modifications: Minor modifications to less visible parts can pass inspection, such as replacing the original air filter with one that filters PM2.5 and includes activated carbon due to poor air quality. This is generally not an issue. 4. ECU tuning, brake disc, and caliper replacements: Tuning the ECU, replacing the grille with a high-ventilation version, or upgrading brake discs and calipers won’t affect the inspection. 5. Spark plug replacements: Replacing standard spark plugs with platinum or iridium spark plugs is also acceptable for inspection. 6. Anti-collision device modifications: Small and micro passenger vehicles can modify damaged front and rear anti-collision devices. For trucks, adding windshields, water tanks, toolboxes, spare tire racks, etc., are all legal modifications.
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