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PratiqueOctober 19, 2026

Seasonal car check-up: winter, holidays, heat and autumn

What to check on your car before winter, before the holidays, during heatwaves and in autumn, and the equipment the rules may require.

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AutoKarnet

Published on October 19, 2026

Seasonal car check-up: winter, holidays, heat and autumn

Cold, heat and long journeys don’t put the same strain on a car. Here is what to check each season, and what the rules require, so you can set off with peace of mind.

Before winter

  • Winter equipment: some countries require it in winter, at least in mountain areas. In France, for example, from 1 November to 31 March, certain mountain municipalities require four winter tyres marked “3PMSF” (three-peak mountain snowflake) or snow chains or socks in the car. Check the rules wherever you will drive.
  • The battery: cold reduces its capacity. If the car is slow to start in the morning, have it tested before the big freeze. See our car battery guide.
  • Coolant: it also protects against freezing. Check the level with the engine cold.
  • Visibility: wiper blades in good condition, winter screenwash, all lights working.

Before a long journey or the holidays

  • Tyres: pressure checked cold, at the value given for a loaded car (label in the driver’s door frame or the owner’s manual), condition of the tread and sidewalls. See our tyre maintenance guide.
  • Fluid levels: engine oil, coolant, brake fluid, screenwash.
  • Due dates: if an oil change or a roadworthiness test falls during the holidays, do it before you leave.
  • Compulsory equipment: many European countries require a high-visibility vest and a warning triangle. Check the rules of each country you drive through.
  • Loading: heavy luggage at the back of the boot, nothing that can move under hard braking.

During heatwaves

  • Tyre pressure is always checked cold, early in the morning: a hot tyre gives a misleading reading.
  • Cooling: keep an eye on the coolant level and the temperature gauge on climbs and in traffic jams.
  • Air conditioning: if it cools less well, have it checked. See our air conditioning guide.
  • Never leave a child or an animal in a car parked in the sun, even for a few minutes: the cabin heats up very quickly.

Back to routine in autumn

  • After the long summer drives: check tyre and brake pad wear, especially after mountain roads.
  • Before the autumn rain: wipers and lights, as the days get shorter.
  • Review the year’s due dates: service, roadworthiness test, and the timing belt if it is coming up.

Nothing forgotten from one season to the next

Record every check and every service in your maintenance log: AutoKarnet reminds you before the next oil change, service or roadworthiness test. For a complete check, follow our seasonal checklist, and before the test, our inspection checklist.

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