Getting Your Car Ready for Winter: A Maintenance Checklist Before the Cold Hits
Quebec winters are hard on your vehicle. Cold starts, snow, ice and road salt take a toll on your battery, brakes and fluids. Before the first big snowfall, a few simple checks can save you from a breakdown at -20°C. Here's a realistic maintenance checklist based on what we see most often on the road.
Battery: the number one weak spot in winter
A weak battery can seem fine in summer and let you down on the first cold morning. Cold slows down the chemical reactions inside the battery and reduces its ability to deliver the current needed to start the engine. Have its charge level and connections checked before the deep freeze. Corroded or loose terminals can also cause hard starting.
If your battery is several years old and starting is already sluggish, it's better to have it tested before it leaves you stranded. Cleaning and tightening terminals and checking the alternator are simple steps that prevent a lot of trouble. If in doubt, we can come to you and test the battery and alternator on site.
Brakes: a safety issue on snow and ice
On slippery surfaces, every inch of braking distance counts. Worn pads, scored rotors or brake fluid contaminated with moisture reduce your margin for error. Have the condition of your pads, rotors and calipers inspected before winter. Grinding noises or a spongy pedal are signs you shouldn't ignore.
Brake fluid absorbs moisture over time, which lowers its boiling point and can affect braking. According to your owner's manual, it should be checked and replaced at regular intervals. A braking system in good shape is what lets you keep control in a snowy curve.
Fluids: antifreeze, oil and washer fluid suited to the cold
Coolant (antifreeze) must be mixed correctly to resist freezing. Too much water and it can freeze in the engine block, which can cause major damage. Have its freezing point and level checked. While you're at it, inspect the radiator, hoses and clamps: a small leak becomes critical when it's very cold.
Engine oil thickens in the cold. Used or unsuitable oil makes starting harder. Follow the viscosity recommended in your owner's manual for winter. Finally, fill your washer fluid reservoir with a winter-grade product and keep a spare jug in the trunk. Road salt on the windshield is a classic we often forget about.
Belts and charging system: avoiding a breakdown in the cold
The serpentine belt drives several essential accessories: alternator, water pump, power steering, A/C compressor. A cracked, frayed or too-loose belt can snap without warning. Have it inspected before winter. If it breaks in the middle of winter, you can lose battery charge and overheating can set in quickly.
The alternator and starter are also under more stress when the mercury drops. A tired alternator recharges the battery poorly, and a starter that struggles often signals the end is near. Having the charging system checked at the same time as the battery is a good way to start winter off right. These checks are quick and often don't require a complicated appointment.
Wipers, visibility and small details that make a big difference
Worn wipers leave streaks and smear slush instead of clearing it. Replace them as soon as they skip, squeak or leave unwiped areas. Also check the rear defroster, headlight washers and all lights. A burnt-out bulb is a visibility risk and a possible ticket.
Think about your key fob battery, tire pressure (it drops in the cold) and the condition of your winter tires. The recommended pressure is on the sticker in the driver's door jamb, not on the tire sidewall. An underinflated tire wears faster and grips the road less.
One last look under the hood to check levels and overall condition can save you a lot of grief. And if you'd rather not put your hands in the cold, a mechanic can come to you to check these items before winter. Request a free estimate at mecanovan.com, with no obligation.
Frequently asked questions
- How often should the battery be checked before winter?
- Generally, a fall check is a good habit, especially if the battery is more than three or four years old. If starting is slower than before, have it tested without delay.
- Why should brake fluid be checked before winter?
- Brake fluid absorbs moisture from the air over time. A high water content can reduce its effectiveness and cause braking problems, especially during repeated braking. Your owner's manual states the recommended interval.
- Does engine oil make a difference when starting in extreme cold?
- Yes. Oil that's too thick or worn makes the engine harder to start and causes more wear when cold. Use the viscosity recommended in your manual for the cold season.
- What are the signs that a serpentine belt needs replacing?
- Cracks, missing chunks, a glazed appearance or abnormal slack are signs of wear. Have it inspected before winter to avoid a breakdown in the cold.
- Can Mécanovan check my car at home before winter?
- Yes, we offer mobile mechanic service at your home in the Greater Montreal area and on the South Shore. We can inspect the battery, brakes, fluids, belts and more. Request a free estimate at mecanovan.com.