Overview
- Clearing all windows is mandatory in Germany, and drivers risk fines for poor visibility or for idling the engine while scraping.
- ADAC recommends a plastic scraper with saw-tooth and smooth edges and warns that hot water can crack windscreens.
- ADAC tests found 12‑volt heaters and electric ice scrapers ineffective or impractical compared with manual scraping.
- DIY de‑icer mixes are widely advised: vinegar with water at 3:1, spirit at 1:1, and antifreeze at 2:1 to melt frost quickly.
- A bar of soap can reduce interior fogging and help free seals and locks, though experts suggest dedicated rubber care for long‑term maintenance.