Why Should a Stone Chip Be Checked Quickly?
A stone chip should be assessed promptly:
• **Crack formation** — temperature changes and vibrations can cause a small chip to develop into a larger crack
• **Contamination** — moisture or dirt entering the damage can make later repair difficult or impossible
• **Safety** — the windscreen is a structural component contributing to vehicle rigidity
When Can a Stone Chip Be Repaired?
A repair may be possible when:
✅ The chip is outside the driver's direct field of vision
✅ Sufficient distance from the edge (approx. 10 cm)
✅ Only the outer glass layer is damaged
✅ The impact is small (approx. 5 mm)
✅ No contamination or moisture
Final assessment is always made at the vehicle by our specialists.
When Is Windscreen Replacement Necessary?
• Damage in the driver's relevant field of vision
• Too close to the edge
• Crack has formed
• Multiple glass layers affected
• Impact too large for repair
• Damage in camera/sensor area
• Contamination has compromised the damage
ADAS Calibration After Replacement
Modern vehicles use cameras and sensors mounted on/behind the windscreen for systems like:
• Lane keeping assist
• Emergency braking
• Traffic sign recognition
• Adaptive cruise control
After replacement, **camera calibration** may be required depending on the vehicle and manufacturer specifications. Our auto glass service offers this calibration.
Stone Chip? Send Us a Photo.
Send us a clear photo via WhatsApp — we can often give an initial assessment from the image.
**[Send photo via WhatsApp →](https://wa.me/491633432211)**
**[Book auto glass appointment →](/en/vehicle-maintenance-mainz/)**