Winter in Switzerland brings stunning snowscapes but also presents unique challenges for vehicle maintenance. The combination of freezing temperatures, snow, ice, and mountain roads demands special attention to keep your car running safely and efficiently.
As temperatures drop in the Swiss Alps, vehicle components that work fine in summer may struggle or fail altogether. Here's your comprehensive guide to preparing and maintaining your vehicle for Swiss winter conditions.
Battery Care: Your First Priority
Cold weather significantly reduces battery performance. A battery that provides sufficient power at 25°C may deliver only 40% of that capacity at -17°C.
Winter Battery Maintenance Tips:
- Test your battery before winter arrives. Most batteries last 3-5 years, so consider replacement if yours is approaching this age.
- Keep connections clean and tight. Corrosion on terminals can prevent proper charging and starting.
- Minimize electrical loads when starting. Turn off lights, radio, and heating until the engine is running.
- Park in a garage when possible to keep the battery warmer.
- Consider a battery blanket for extreme conditions, especially in high Alpine regions.
At Hellcatse, we offer comprehensive battery testing as part of our winter maintenance package, ensuring your vehicle starts reliably even in the coldest conditions.
Winter Tires: A Legal Requirement with Good Reason
While Switzerland doesn't have a blanket legal requirement for winter tires, drivers can be fined if their vehicle causes an accident or obstructs traffic due to inappropriate tires. In practice, this means winter tires are essential from October to April.

Selecting the Right Winter Tires:
- Look for the Alpine symbol (mountain with snowflake) which indicates the tire meets winter performance requirements.
- Check tread depth - minimum 4mm is recommended for winter conditions (legal minimum is 1.6mm).
- Consider conditions - if you frequently drive in deep snow, dedicated snow tires may be preferable to all-season options.
- Don't mix tire types - all four tires should be winter-rated for optimal handling.
- Check pressure regularly - tire pressure drops in cold weather, affecting handling and fuel efficiency.
For optimal safety, we recommend changing to winter tires before temperatures consistently drop below 7°C, typically by mid-October in most Swiss regions.
Fluids: The Lifeblood of Winter Performance
Various fluids in your vehicle need special attention during winter months:
Engine Oil
Cold temperatures make oil thicker, reducing its ability to lubricate engine components. Modern synthetic oils perform better in cold starts, but it's worth checking your owner's manual for specific winter recommendations.
Antifreeze/Coolant
Proper antifreeze concentration is critical to prevent the cooling system from freezing. A 50/50 mix of antifreeze and water typically protects down to -35°C, suitable for even the coldest Swiss locations.
Pro Tip
Don't add plain water to your cooling system in winter. This dilutes the antifreeze concentration and raises the freezing point, potentially causing serious engine damage.
Windshield Washer Fluid
Regular summer washer fluid will freeze in winter conditions. Use a winter-specific formula rated to at least -20°C to ensure clear visibility throughout the season.
Brake Fluid
Brake fluid can absorb moisture over time, lowering its boiling point and potentially freezing in extreme cold. If your brake fluid hasn't been changed in the last two years, consider a flush before winter.
Visibility: Essential for Winter Safety
Reduced daylight hours and adverse weather conditions make visibility particularly important in winter:
- Replace wiper blades that show signs of wear. Winter-specific blades with robust frames resist ice build-up.
- Check all lights including headlights, brake lights, turn signals, and fog lights.
- Keep a snow brush and ice scraper in your vehicle at all times.
- Never start driving until all windows, mirrors and lights are fully cleared of snow and ice.
- Consider applying a water-repellent treatment to windshields and windows.
Emergency Preparedness for Alpine Driving
Mountain roads in Switzerland can present unexpected challenges, from sudden snowstorms to road closures. A winter emergency kit should include:
- Portable phone charger
- Flashlight with extra batteries
- Blanket or sleeping bag
- Extra warm clothing
- First aid kit
- Non-perishable food and water
- Snow shovel
- Traction aids (sand, cat litter, or specialized mats)
- Warning triangles
- Jumper cables or battery booster
- Tow rope
- Tire chains (and practice installing them beforehand)
Winter Maintenance Special
Schedule our comprehensive Winter Preparation Service and ensure your vehicle is ready for the Swiss winter. The package includes battery testing, antifreeze check, winter tire inspection, and 20-point safety inspection.
Book AppointmentConclusion
Proper winter maintenance isn't just about avoiding breakdowns—it's about safety on Switzerland's challenging winter roads. Taking preventative measures before the first snowfall will save you time, money, and potential danger when the temperature drops.
At Hellcatse, we specialize in comprehensive winter preparation for all vehicle makes and models. Our certified technicians understand the unique demands that Swiss winter conditions place on automobiles and can ensure your vehicle is properly prepared.
For any questions about winter maintenance or to schedule a winter preparation service, contact our team.