Autumn Car Checklist: Getting Your Car Ready for Darker, Wetter Roads

Autumn does not arrive all at once. The mornings get damp, the commute home slips into the dark, and the roads are suddenly slick with rain and fallen leaves. None of it is dramatic on its own, but together it asks a lot more of your car than a dry summer did.

The good news is that a short once-over now, before the first proper frost, sets you up for the whole colder season. Here is what to check.

Tyres

Autumn is all about wet grip. Standing water, greasy leaves and cold surfaces give your tyres far less to work with than dry summer tarmac, so this is the check that matters most.

• Tread depth. The legal minimum in the UK is 1.6mm across the central three-quarters of the tyre. That is the point at which you can be fined and penalised — not a target to aim for. Grip in the wet drops off well before you reach it, so around 3mm is a sensible point to plan replacements before winter.
• Pressures. Set them to the figures in your handbook or the sticker inside the driver's door. Under-inflated tyres clear water less effectively and wear faster.
• Condition. Look for cracks, bulges, uneven wear and anything stuck in the tread. A quick walk round the car takes a minute and can flag a problem before it becomes a breakdown.

Lights and bulbs

You are now driving home in the dark, so being seen matters as much as seeing. Check every light works — ideally with someone standing outside the car, or by reversing up to a wall or garage door.

• Every bulb. Headlights (dipped and main beam), sidelights, tail lights, brake lights, indicators, fog lights and the number-plate light.
• Cloudy lenses. Yellowed or hazy headlight lenses cut your light output badly. A restoration kit or a good clean can make a real difference on dark lanes.

Faulty lights are one of the most frequent reasons cars fail their test, which is one of several places an autumn check overlaps with your MOT.

Wipers and screenwash

Smeary wipers are merely annoying in summer. In autumn rain and low sun they can leave you half-blind at exactly the wrong moment.

• Blades. If they judder, streak or leave clear arcs of water behind, replace them. They are cheap and take a couple of minutes to swap.
• Screenwash. Top up with a proper additive mixed to the strength on the bottle — never just water, which can freeze in the reservoir and pipes as the temperature falls. A decent screenwash also cuts through the film of road grime that builds up in wet weather.

Battery

Cold, damp mornings are hard on batteries, and autumn is when the weak ones start to give up. The engine is harder to turn over, and you are drawing more power than ever from lights, heaters, wipers and demisters all running together.

• If your battery is more than three years old, or the engine cranks slowly on the first start of the day, get it tested. Many garages and motor factors do this free in a few minutes.
• Clean any white or green corrosion off the terminals, which can weaken the connection to the starter.

Sorting a tired battery now is far cheaper and less stressful than an emergency callout on a frosty December morning.

Demisting, heating and air-con

A misted screen at a junction is a genuine safety risk, so make sure you can clear it fast.

• Test the blower and rear demister before you actually need them in a hurry.
• Use the air-con. A quick blast dries the air and clears mist faster than heat alone. Running it occasionally through autumn and winter also keeps the system healthy.

Coolant and antifreeze

Your coolant does two jobs: it stops the engine overheating and it stops the system freezing. As the first frosts approach, it is worth checking the level and the concentration — the wrong mix can freeze and crack expensive parts. If you are unsure, most garages will check and correct it cheaply during a service.

An autumn check is also MOT prep

Notice how many of these — lights, tyres, wipers — appear on the list of most common MOT failures. Getting ahead of them in autumn means a smoother test as well as safer driving. If your MOT is due over the colder months, use a free MOT check to confirm your date, and set a free MOT reminder so it never catches you out. It is also a good moment to double-check your tyre tread against the law.

Treat this as the first step. Once the clocks change and ice and snow become a real risk, our deeper winter guide covers emergency kit, freezing conditions and the extra steps for the coldest months.

The bottom line

Autumn is the gentle warning before winter proper. A short check of your tyres, lights, wipers, battery and screenwash now means a car that copes calmly with the wet, dark commute — and one that is closer to sailing through its test. If your MOT is coming up over the colder months, start with a quick, free MOT check and set a reminder while it is on your mind.