As temperatures drop and winter weather sets in, taking a little time to prepare your car can make the difference between safe winter travels and being left stranded at the roadside.
Key facts at a glance:
- According to the AA, 24% of winter callouts during winter are battery related.
- Other issues include the alternator due to added demand of systems including heaters and headlights.
- Check lights are off before exiting the vehicle.
- Cool weather slows down the chemical process within the battery, affecting its ability to charge.
- Avoid using multiple high-draw electrical accessories.
- Regularly check coolant levels.
- Tyre tread depth is 1.6mm and proper tyer condition is essential for maintaining traction.
- Consider switching to winter tyres if travelling through ice or snow.
- Ensure windscreen washer fluid is topped with antifreeze.
- Keep an ice scraper and de-icer available in the car.
- Make sure you have an emergency breakdown kit in the car, including a warm blanket, first aid kit and portable charger.
Cold conditions put extra pressure on your vehicle, and certain faults are far more common during the winter months.
Flat car batteries:
One of the most frequent issues drivers face in winter is a flat battery. In many cases, this happens simply because the battery is old and due for replacement. According to the AA, 24% of winter callouts are battery related. [1]
Alternator problems:
Winter driving puts more demand on your car’s electrical system. With heaters, defrosters and headlights working overtime, your alternator is under increased strain and at higher risk of failure. [2]
By staying aware of these common winter car faults and carrying out some simple checks, you can reduce the risk of unexpected breakdowns and keep your journeys stress-free.
How do I check my car battery?
If your vehicle has an older battery, investing in a trickle charger can be a smart move – especially for cars that aren’t used regularly. Alongside this, you can follow two simple steps to help maintain battery health:
- Keep your car covered:
If you have a garage, use it. Storing your car away from freezing air can help protect the battery from harsh conditions.
- Do vital checks:
Always make sure all lights and electrical systems are switched off before leaving the car. This simple habit reduces the risk of flat battery overnight.
Why do car batteries fail in winter?
The main reason is that cold weather slows down the chemical processes inside the battery, reducing its ability to hold charge. Older batteries are especially vulnerable to this, which is why winter breakdowns are so often battery-related.
If your battery is fairly new and you drive your car regularly, you shouldn’t need to worry too much about charging. If you’re uncertain, take a look at our guide: How often should I replace my car battery for more advice.
Cold weather can significantly impact battery performance, making it one of the most common issues drivers face during the winter months.
Are car batteries protected under an extended warranty?
It’s important to not that most extended car warranties do not provide plans that include car batteries. That’s because batteries are considered consumable items with a limited lifespan.
However, when you book your car in for a routine service, battery checks are usually included. Keeping up with your manufacturer’s recommended service schedule is one of the best ways to ensure your, and its battery, stays in top condition throughout winter.
How can I protect myself against winter car faults?
You can’t plan for every eventuality on the road, but you can be prepared. Cold weather brings added strain on your vehicle, and certain faults are far more common in winter.
Here are the key ones to look out for:
- Alternator failures:
Your alternator works harder in winter, powering heaters, headlights and defrosters. To help prevent problems, avoid using multiple high-draw electrical accessories at the same time unless absolutely necessary.
- Starter motor problems:
Cold starts put extra stress on your starter motor. Reduce the load by switching off non-essential electrical items like the radio and heater until the engine is running smoothly.
- Heater core failures:
The heater core keeps your cabin warm, but low or poor quality coolant can cause it to fail. Regularly check and maintain coolant levels to prevent costly repairs.
Why extra protection matters:
With increased electrical demand and higher chances of mechanical faults, the risk of unexpected breakdowns rises during the colder months. Adding a layer of financial protection with an extended car warranty can give you peace of mind if the worst happens.
How do I prepare my tyres for the winter?
Did you know the legal minimum tyre tread depth for cars in the UK is 1.6 millimetres? Driving with tyres below this limit not only reduces grip but can also result in fines and penalty points.
To stay safe on slippery winter roads:
- Check tread depth:
The law requires 1.6mm across the central three-quarters of the tyre. A quick way to test this is with the 20p coin test – if you can’t see the outer rim of the coin when placed on the tread, your tyres are within the limit.
- Consider winter tyres:
If you’re likely to drive in snowy or icy conditions, winter tyres can provide far better traction and control compared to standard tyres.
- Monitor tyre pressure:
Cold temperatures can cause pressure to drop, so check regularly to ensure safe handling and fuel efficiancy.
Protect yourself this winter:
Winter driving comes with added risks, and accidents are more common when road conditions worsen. Ensuring you have roadside assistance included in your car warranty gives you peace of mind that, if the unexpected happens, you and your vehicle won’t be stranded.
Winter visibility checks:
Clear visibility is essential for safe winter driving. Cold, wet and icy conditions make it even more important to prepare your car before setting off.
Visibility essentials:
- Top up washer fluid:
Always use a winter-grade washer fluid with antifreeze to prevent freezing.
- Check wiper blades:
Inspect for wear and replace them if they’re streaking or damaged.
- Carry de-icing tools:
Keep an ice scraper and de-icer spray in your car to clear your windscreen, mirrors and lights before setting off.
How to check your car’s fluid levels:
Maintaining correct fluid levels helps prevent breakdowns and ensures your car runs smoothly in cold weather:
- Coolant/antifreeze:
Check levels regularly to stop your engine from freezing.
- Engine oil:
Make sure levels are topped up, and consider switching to a winter-grade oil for better performance in low temperatures.
- Brake fluid:
Proper levels are vital for safe stopping distances on slippery roads
Why washer fluid matters in winter:
Roads are often gritted during winter, which can quickly leave your windscreen coated in grime. If your washer fluid freezes, you won’t be able to clear it, leaving you with dangerously poor visibility. Always make sure your washer fluid contains antifreeze.
Your washer fluid will usually be topped up at your annual service, but it’s best to check before winter sets in. Simply open the bonnet and look for the cap with the windscreen icon to refill as needed.
Winter driving emergency kit: What to keep in your car:
Even with the best preparation, winter weather can still catch drivers out. Keeping an emergency kit in your car ensures you’re ready if you get stuck or face unexpected delays.
We recommend your winter driving kit includes the following essentials:
- Warm clothing or a blanket
- De-icer
- Ice scraper
- Warning triangle
- Hi-vis jacket
- First aid kit
- Torch
- Jump leads
- Shovel
- Emergency food (like high-energy cereal bars)
- Phone charger or charge pack
- A map or updated sat nav/latest version of Google maps
By keeping these items in your boot, you’ll be better prepared for the challenges of winter driving in the UK.
A car warranty you can rely on for winter and beyond:
With a tailored car warranty, you can enjoy peace of mind this winter knowing your vehicle is protected.
Don’t wait until the first snowfall to act – book a winter maintenance check with your trusted mechanic to make sure your car is fully prepared for the colder months. From battery health to tyres and fluid levels, taking these steps now will help you drive with confidence whatever the weather.
Protect yourself from unexpected repair costs this winter – explore our tailored car warranty plans now.
Discover more.
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