#Automobilindustrie
How to winterize a car: Essential tips for cold weather
Winter roads are no joke. Did you know that over 40% of car accidents happen during wet or snowy conditions?
Prepping your car for the season isn’t something you can choose NOT to do, as it can be your lifesaver. Literally.
In this blog post, we’ve gathered all you need to know about winterizing your vehicle, from gear and maintenance recommendations to preliminary costs.
Winter checklist for your car
Now, to make sure your car is ready for harsh winter conditions, you’ll need to tick off a few essential tasks. Here’s a straightforward checklist for you to follow:
1. Change to winter tires
Winter tires aren’t just for show – they’re designed to handle snow, ice, and cold temperatures while keeping you safe and in control. Made from special rubber compounds, they stay flexible in the cold and give you the grip you need on slippery roads.
The cost of winter tires can vary significantly depending on several factors: your wheel sizer, the brand, and whether you opt for premium tires or more affordable alternatives. For instance, a decent set of R16 winter tires from a reputable brand like Michelin or Bridgestone might start around $300-$500, while R20 wheels could cost upwards of $1,000 or more.
On the lower end, budget tires can be much cheaper, though they may not offer the same performance or durability.
When choosing, think about your driving habits and conditions.
If you live in an area with mild winters, even all-season tires or mid-range winter options might work fine (though they still need to meet safety standards). But if icy roads are a regular thing in your location, invest in high-quality snow tires from a trusted manufacturer. It’s a good idea to consult a professional when buying tires for your specific needs.
Buying used tires?
Then there are a few things you must keep in mind:
First, carefully check the tread depth – anything less than 3 mm won’t cut it in winter. Also, don’t forget to check the tire’s age. Look for a four-digit code on the sidewall: the first two numbers are the week, and the last two are the year of manufacture. If you see tires are older than six years – skip them, as hardened rubber loses its effectiveness.
Four-digit DOT code on the tire sidewall
2. Check engine fluids
Winter weather puts extra strain on your car’s fluids, so it’s crucial to ensure they’re ready for the cold season.
Start with your engine coolant. Low coolant levels or improper antifreeze can lead to freezing and cause significant cooling system and, thus, engine damage.
To check the freezing point, use an antifreeze tester, which costs around $20 and is widely available. Ideally, the coolant should be a 50:50 mix of antifreeze and water to provide protection down to at least -35°F (-37°C).
Antifreeze tester
Next, switch to windshield wiper fluid with a winter-grade formula to prevent freezing. Regular formulas can freeze on your windshield, blinding you in icy conditions.
Winter-grade fluid typically costs between $3 and $5 per gallon and is stocked at most auto parts stores or even supermarkets. It’s wise to keep an extra bottle in your trunk because snowy, slushy roads will have you reaching for that spray often.
3. Test the battery
Your car’s battery works overtime in cold weather, and frigid temperatures can drain it faster than you think. A weak battery is one of the most common reasons cars refuse to start on icy mornings, so testing it before winter hits is a must.
Use a battery tester or OBDeleven diagnostic tool to measure the voltage and health of your battery. Look for a reading above 12.4 volts when the engine is off. Anything lower may indicate it’s time to recharge or replace it – if that’s the case, check out a detailed guide on how to replace and register a new car battery.
New batteries range from $50 to $500, depending on the type. Cars with start/stop systems often require AGM or EFB batteries, which are pricier but designed for heavy-duty performance.
Pro tip: If your battery is over 3 years old or showing signs of trouble (like dim headlights or slow cranking), don’t wait for it to die on you. Replacing it before the deep freeze can save you from an emergency call in subzero temperatures.
4. Replace wiper blades
Your wiper blades also do the hard work in winter, from scraping frost to clearing heavy snow. Over time, they lose their edge and can leave streaks or patches that can block your view – not ideal when visibility is already poor.
Winter wiper blades are specially designed to handle freezing conditions. They often have a rubber boot that prevents ice from clogging the blade mechanism, ensuring smoother performance even in harsh weather.
You can find winter blades for $10–$30 per pair, depending on your car’s make and model. It’s a small investment for clear, safe driving all season.
Pro tip: Don’t forget your rear wiper (if your car has one). It’s just as important for visibility when reversing out of snowy parking lots or driveways.
5. Keep the gas tank at least half full
Keep your gas tank at least half full to prevent water condensation inside your gas tank, as it might freeze and clog fuel lines as the temperature drops.
If you drive a diesel vehicle, use winter-grade diesel fuel to prevent it from thickening in subzero conditions. Diesel can gel at low temperatures, making it impossible to start your engine without a fuel additive or pre-warming system.
Having a fuller tank also provides enough fuel to keep your engine running if you ever get stranded. In those situations, your car's heater may be your only source of warmth until help arrives.
6. Check the glow plugs (for diesel engines)
Diesel engines use glow plugs to start in cold weather, so it's super crucial they're in good condition. Unlike spark plugs in gasoline engines, glow plugs heat the air in diesel engines for smooth starts in freezing weather.
To identify faulty glow plugs, use an OBD code reader, such as OBDeleven, to scan for glow plug-related fault codes. Faulty glow plugs can cause extended cranking times, misfires, or trouble starting in the cold.
Glow plugs wear out over time; if one fails, the others are usually not far behind. Replacing all at once is more cost-effective and ensures even performance. A single glow plug costs $10–$30, but remember – you’ll need one for each cylinder.
7. Wash and wax
Don’t let winter ruin your car’s shine. Road salt, grime, and debris can wreak havoc on your car’s exterior, leading to corrosion if left unchecked. A good wash and wax keeps your car looking fresh and adds a protective layer against harsh winter elements.
Want even better protection?
Consider applying ceramic nano-coating. This creates a durable shield against dirt and moisture and might even extend your car’s life while saving you frequent trips to the car wash.
And don’t forget the underbody – applying a rust-proof coating here is critical for guarding against salt and snow damage.
8. Activate Scandinavian DRLs
Winter days can be dark and cloudy, so visibility on the road is always a challenge. Most cars “AUTO” light setting only activates taillights in low light. That means your taillights might not even be on during foggy or snowy conditions.
The fix: You can manually switch to low beams, but why not let your car handle it for you? With Scandinavian Daytime Running Lights (DRLs), your taillights automatically light up whenever the engine is on – no extra effort needed.
For Volkswagen Group and BMW Group vehicles, activating Scandinavian DRLs is as easy as using OBDeleven’s pre-made customizations – One-Click Apps.
9. Lubricate the door locks
Nothing kills the winter morning vibes faster than frozen door locks. To avoid wrestling with your car doors in the cold, apply a silicone-based lubricant to locks, hinges, and seals.
Keep a lock de-icer spray handy for emergencies. Just don’t store it inside the car – it won’t do much good if you can’t get in.
10. Change to rubber floor mats
Protect your car’s interior from winter’s mess. Snow, slush, and mud are no match for rubber floor mats – they’re easy to clean and trap melted snow, keeping your car’s carpets dry and damage-free.
Plus, waterlogged carpets can lead to mold, odors, and even rust in the floor panels. For $20–$50, a set of rubber mats is an easy win for your car’s cleanliness and long-term health.
Rubber floor mat
Prepare a winter kit
Now that your car is prepped, it’s time to think about those unpredictable moments on the road – a sudden winter storm or icy patches.
For less than a couple hundred dollars, you can gather the essentials that might just save the day when you need them most.
Here’s what your winter survival kit should include:
1. Snow and ice removal tools
Clear visibility is a must when driving in snow. These tools will help you quickly clear frosty windshields and piled-up snow:
- Ice scraper and snow brush for keeping your windows clear
- De-icer spray for saving you time on those especially stubborn icy mornings
2. Traction aids
These items can help you regain traction and get moving again if you get stuck:
- Sand or cat litter to sprinkle under your tires to give them a better grip on icy surfaces
- Traction mats or chains – a lifesaver when dealing with deep snow or slick ice
3. Tire pressure gauge
Cold weather can cause tire pressure to drop, affecting both safety and fuel efficiency. Keep a gauge handy to monitor and adjust while winter driving.
4. Cold weather emergency kit
Whether your car refuses to start or you’re stranded in a snowstorm, these essentials can keep you warm and safe:
- Jumper cables or a portable jump starter for a dead battery
- Blankets and warm clothing to stay warm if you’re waiting for help
- Non-perishable snacks and water to keep your energy up while you wait
- Flashlight with extra batteries – essential for nighttime emergencies
- First aid kit to handle minor injuries while waiting for professional help
- Shovel to dig yourself out of snowbanks or clear a path to your tires
Bonus tip: Store everything in a sturdy, waterproof bag in your trunk so it’s easy to access when you need it. Having this kit ready to go can turn a potential winter disaster into a slight inconvenience.
So, how much does it cost to winterize a car?
Winterizing your car doesn’t have to break the bank, but costs can vary depending on your needs, the size of your vehicle, and the quality of the products you choose. Here’s a breakdown of the estimated costs for everything we’ve covered so far:
| Item | Price |
| Winter tires | From $300 per set |
| Antifreeze tester | About $20 |
| Washer fluid | From $3 to $5 per gallon |
| Car battery | From $50 to $500 |
| Wiper blades | From $10 to $30 |
| Glow plugs | From $10 to $30 per plug |
| Rubber floor mats | From $20 to $50 |
| Winter kit | Winter kit |
While prices depend on factors like brand and location, investing in the essentials ensures your car stays safe and reliable during the cold months.
Start with what your car needs most and build your winter prep kit from there. After all, a little preparation now can save you a lot of headaches (and expenses) later.