
If the windshield is cracked by a stone, whether to repair or replace it depends on the length of the crack. You can use a one-yuan coin as a measuring tool—if the crack can be covered by the coin, it can be repaired; if the crack exceeds the size of the coin, replacement is necessary. Below is an introduction to windshield repair: 1. Location: Cracks in the middle of the windshield are relatively easier to repair compared to those at the edges. 2. Time: Repair is easier if done immediately after the crack occurs. However, if left for too long, the crack may expand, affecting the repair quality, and the glass may become harder to clean thoroughly, significantly reducing the repair effectiveness.

I often drive long distances and have experienced several instances of my windshield being hit by stones. Deciding whether to repair or replace it primarily depends on the size and location of the damage. Small cracks can usually be repaired—professional shops use resin injection for quick fixes, which is low-cost and takes about half an hour. However, large cracks or damage in the direct line of sight require a full windshield replacement to avoid dangerous blurred vision. Most insurance companies cover repair costs, so I recommend getting it checked immediately after being hit to prevent cracks from spreading. Safe driving habits are also crucial, such as avoiding areas with trucks and loose stones to reduce the risk of accidents.

As a car enthusiast, I've studied windshield structures, and dealing with stone impacts really comes down to the details. For minor damage like star-shaped cracks, repair techniques are mature—resin can fill the gaps to prevent moisture intrusion. DIY kits are an option, though not as effective as professional services. Damage over two centimeters in diameter or in critical areas requires replacement, especially for deeper damage in laminated glass, which is harder to repair. Don't overlook environmental factors—repairing is more eco-friendly and cost-effective than replacement. Regular maintenance, like checking the glass during car washes, helps spot issues early.

With over 20 years of driving experience, I've often encountered windshield damage from stones. Here's a simple rule: repair small cracks, replace large pits. Location matters too - if it's directly in the driver's line of sight, replacement is better as repairs may leave marks affecting visibility. A repair costs a few hundred yuan, while replacement runs into thousands and takes more time. Address the issue early to prevent secondary accidents.


