RATGEBER / 2026-11-05
Winter auto glass: remove frost without heat shock
Hot water and hard scraping are poor choices. Protect an already damaged windshield.
No hot water on cold glass
Hot water creates a severe temperature difference between parts of the glass. With an existing chip or crack, this is an unnecessary risk. Use suitable de-icer, a non-damaging scraping method and the vehicle’s defrost function according to the manufacturer’s instructions.
Take care at the fracture
Pressure from an ice scraper can place additional stress on existing damage. Do not work forcefully directly on the impact. If necessary, protect a fresh chip with a suitable dry, clean cover without pressing material into the fracture.
Dehumidify the cabin gradually
Heavy interior condensation encourages abrupt changes between maximum heat and cold outside air. Use climate and ventilation controls appropriately and avoid extreme heat shocks. Keep glass and wiper blades free of coarse dirt to prevent additional scratches.
Document damage before winter
If a crack changes in cold weather, earlier photos help the assessment. Note when the damage occurred and whether it has already been treated. Always mention a heated windshield or camera equipment in your request.
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