Why do 4S shops only apply film after license plate registration?

1 Answers
VonJaxson
07/30/25 9:53am
Because new cars cannot pass vehicle inspection after film application, making license plate registration impossible. Therefore, 4S shops generally apply film to new cars only after license plate registration. The following are the functions of film application: 1. Blocking ultraviolet rays: After film application, cars can block ultraviolet rays, especially in hot summers when sunlight is strong. Film can block part of visible light and ultraviolet rays, helping to reduce the temperature inside the car. 2. Improving car privacy: Many car owners choose darker films because they have good one-way perspective function. Looking from outside the car into the interior creates visual reflection, making it difficult to see the situation inside the car clearly.
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