How to Repair a Cracked Headlight Housing?
2 Answers
There are several solutions for a cracked headlight cover: 1. Small cracks: Depending on the severity, if it's still functional, continue using it for a while. 2. Glue repair: Simple repairs can be made using glue and plastic. 3. Check wiring: Inspect the wiring of the taillight; if rain could cause a short circuit, replace the cover. Related car light knowledge: 1. No separate replacement: The cover cannot be replaced separately because auto parts stores don't sell individual components, so the entire assembly must be replaced. 2. Warranty period: Headlight warranties often last only 3-6 months. Since headlights are wear-and-tear parts, the maintenance manual usually notes in fine print that while the entire car has a three-year warranty, headlights typically only have a 3-6 month or 5,000-kilometer warranty.
Last time my car's headlight cover had a small crack, I fixed it with a UV repair kit bought from Taobao for 30 yuan. Cleaned the crack, applied some glue, and hardened it with a UV lamp for a few minutes, saving hundreds on a new cover. Be careful not to let the glue flow inside the cover to avoid affecting the light transmission. Without repair, rainwater can seep in, causing fogging and easily burning out the bulb, making night driving unsafe. DIY is both cheap and fun, suitable for car owners who love DIY. Regular maintenance checks can prevent bigger issues. If the crack is small, try this method—it's quite durable.
