How to make sure the correct level of liquids in a car ?

Regular fluid level checks are essential to keep your car in good condition. Each liquid – engine oil, coolant, brake fluid, screenwash and power steering – plays a specific role in the optimal operation of the vehicle. A monthly check before each long trip helps to avoid mechanical failures and ensure your safety on the road. Follow our guide to help you master these essential checks.

The different essential liquids to control

The level check begins by identifying the different tanks under the hood. A colour code facilitates their identification: yellow for the engine oil, green for the coolant and red for the power steering.

The test is always carried out on a flat ground, cold engine, for reliable measurements. Each tank has mini/maxi markers that must be strictly adhered to.

An insufficient level is manifested by specific signs : blue smoke at the exhaust for the oil, red light on the dashboard for brake fluid, shrill noise for power steering. An abnormal drop may reveal a leak requiring rapid professional intervention.

How to check engine oil level

Engine oil testing requires a precise methodology. Start by parking your car on a horizontal surface and wait 30 minutes after the engine stops for an exact measurement.

Locate the gauge, recognizable by its yellow ring, and then gently remove it. Clean it with a clean cloth, reinsert it completely, and then remove it again for reliable reading.

The marks on the gauge indicate the amount of oil present. An optimal measurement is between the two marks. A monthly visit to the garage allows a complete professional diagnosis of the quality and level of your oil.

Engine coolant check

The engine coolant tank, which is green in colour, is located near the radiator. The monthly check is carried out only on cooled engine to avoid any risk of burning.

Locate the graduations on the transparent expansion vessel. The optimal volume is maintained between the two engraved lines. A rapid drop in level may indicate a leak in the hoses or radiator.

When checking, check the color of the liquid : a rusty or cloudy color requires immediate replacement. For a complete diagnosis, also observe the condition of the hoses which should not show any cracks or signs of softening.

Where and when to check brake fluid

The brake fluid tank is easily located under the driver’s side hood near the master cylinder. A check is required at each change of season and before the big departures on vacation.

The test is carried out on a vehicle parked flat, engine cold. The optimal level is read directly on the transparent jar between the marks “Min” and “Max”. An abnormal level drop deserves special attention : advanced wear of the pads or potential leakage from the circuit.

A dark or brown shade of the liquid indicates the need for replacement. A professional can then perform the complete purge of the circuit, a delicate but essential operation to ensure effective braking.

Make the level of the power steering fluid

Locate the cylindrical tank near the belt, which can be identified by its cap marked with a steering wheel symbol. Regular checking ensures smooth steering operation and prevents premature wear of components.

On transparent tanks, directly check the amount of liquid present. For opaque models, use the gauge attached to the plug. The color of the fluid should remain raspberry red – a brown hue signals urgent replacement.

When refilling, use only the type of liquid recommended in your service book. A fluid error could damage the system beyond repair. For maximum safety, have leaks checked every 5,000 kilometres.

Check your screenwash

The screenwash tank is distinguished by its blue cap marked with a windshield symbol. The monthly check is essential to maintain optimal visibility on the road.

A quick test of the sprinklers can be used to assess the remaining amount. If the spray is not enough power or becomes irregular, consider filling the tank. In winter, opt for a specific antifreeze liquid that resists negative temperatures.

Savvy drivers always keep a backup can in their trunk. A practical tip : unclog blocked sprinklers with a fine needle to find a powerful and well-oriented spray. Regular maintenance of the nozzles extends their service life and ensures effective windscreen cleaning.

When should you do your fluid levels

The ideal frequency for monitoring levels varies depending on your use of your car. A rapid weekly check-up when filling up with petrol allows to identify any emerging anomaly.

Schedule a thorough examination of all fluids at the change of season. Summer requires special attention to coolant, while winter requires increased monitoring of the windscreen washer.

Some situations require additional checks : before a trip exceeding 500 km, after a prolonged period of no use or when an indicator appears on the dashboard. Savvy drivers also keep a close eye on their levels in extreme weather or mountain traffic.

Check levels : important precautions

Safety first : wear protective gloves when handling under the hood. Contact with certain fluids can cause skin irritation. Keep a stock of clean rags on hand to wipe gauges.

Park your vehicle on a perfectly flat surface for reliable measurements. Wait at least 30 minutes after the engine is stopped : hot liquids can cause severe burns.

The right reflexes for precise checks : clean each gauge carefully before reading, avoid mixing between different types of liquids and scrupulously respect the manufacturer’s recommendations. Adequate lighting under the hood makes it much easier to read levels.

Recommended frequency of checks

A precise timetable is required to maintain optimal levels. The engine oil needs to be monitored every 2,000 kilometres, while the coolant needs to be checked monthly.

For the brake system, schedule an inspection every 5,000 kilometres. The power steering level requires a quarterly check, except for unusual efforts at the wheel.

Extreme conditions change these intervals : in high heat, check the cooling every week. In harsh winters, check the windshield washer twice a month. A follow-up booklet allows you to record each intervention and anticipate future audits.

A regular check of liquid levels is a simple but essential gesture to preserve the performance and longevity of your car. By adopting good habits and following a precise timetable, you limit the risks of breakdowns and guarantee safe driving. Each liquid plays a crucial role and requires special attention depending on the season and use of the vehicle. By being vigilant and following the manufacturer’s recommendations, you optimize the smooth operation of your car and avoid costly repairs.