Same story every year. First frost hits and shops are slammed. Drivers who prepare early cruise through winter. The ones who wait end up in the cold next to a car that will not start. Here is what to handle before temperatures drop.
Winter Tires - Mandatory, Not Optional
Required by law from November 15 to April 15. But do not wait until November. First snow hits and everyone rushes to tire shops, stock runs out.
Check tread depth. Legal minimum is 4 mm, but below 5 mm a winter tire loses serious grip. If yours are near end of life, replace before the season while there is still selection.
Coolant - It Cannot Be Weak
Coolant protects against freezing but loses properties over time. We measure strength with a refractometer. It should protect to at least minus 25, ideally minus 35.
If it is two to three years old or you do not know when it was last changed, replace it. Frozen coolant can crack the engine block, and that repair costs more than the entire winter prep.
Battery - The Number One Winter Culprit
At low temperatures the battery loses capacity while the engine demands more energy to crank. If yours is three to four years old, get it tested. We measure voltage and capacity under load. Five minutes and you know if it will last.
Signs of weakness: slow cranking, lights dimming at startup, needing frequent top-ups. If you notice any of that, do not wait.
Windshield Washer Fluid
Summer washer fluid freezes at zero. Replace it with winter-grade fluid rated to minus 20 or stronger. A full reservoir of winter fluid is a must. In winter, road salt and mud dirty the windshield much faster.
Wiper Blades
Wipers that smear instead of cleaning are dangerous at night and in the rain. Wiper rubbers wear out in a year or two. Before winter, put new ones on if the old ones are not wiping clean. A cheap investment that drastically improves visibility.
Lights
Visibility is worse in winter, days are short, and fog is common. Check all lights: low beam, high beam, fog lights, turn signals. Clean the headlight lenses. Dirty lenses can reduce visibility by up to 40 percent.
Heating and Ventilation
Crank heat to max and check warm air from all vents. Weak heating could be a clogged heater core, stuck thermostat, or low coolant. Heating is not just comfort. You need it to defog the windshield.
Door Seals and Locks
Apply silicone spray or glycerin to the rubber door seals. This prevents the doors from freezing shut and protects the rubber from tearing when you open the door in freezing conditions. Takes two minutes and can save you from a damaged seal.
When to Start Preparing
Ideally in October, at the latest early November. Shops are not yet overwhelmed, tires are available, and you have time to address anything that comes up during the inspection.
Our Advice
Bring the car in for winter prep and we will check everything at once: coolant, battery, tires, brakes, lights, wipers. Better to handle it all in one visit than to keep coming back five times during the winter.