A detailed diagram of a car engine, with all the parts labeled. The engine is blue and is in the front of the car. It is a Renault 1.6 engine.

Learn the parts of your car’s engine

Have you ever wondered what is hidden under the hood of your vehicle? Today we open it to show you the different parts that make up a car engine.
We have all accessed the car engine area for simple tasks such as measuring the oil or refilling the windshield washer fluid. Little more can be done. A few years ago, when raising the hood, one could find oneself face to face with a tangle of cables, ducts, hoses and metal parts framing an engine block that was perfectly visible.

However, today that experience has become somewhat obsolete, since most of today’s vehicles hide their parts under enormous black plastic covers, whose main function, apart from the mere aesthetic issue, is to serve as acoustic insulation.

However, you can still see the main parts of the car’s engine . Do you want to know them?

A detailed diagram of a car engine, with all the parts labeled. The engine is blue and is in the front of the car. It is a Renault 1.6 engine.
Engine parts of a Dacia Logan car

This engine, which corresponds to a Renault Dacia Logan , is made up of the following parts:

Oil stick

This dipstick allows us to know the amount of oil in the crankcase, a task that must be done every thousand kilometers, in a flat place and with the engine off and cold. To do this, you just have to unscrew it, take it out, clean it with a cloth, insert it again and take it out again. If the oil mark is between the maximum and minimum signs , it means that everything is correct.

oil tank

One of the relevant components in the engine system is the oil tank, since it is responsible for storing the lubricant that will circulate through the engine parts when it is in operation, thus avoiding friction between them.

If the dipstick reveals that there is little oil, you should refill the reservoir. It is important to do it little by little and check the levels and, above all, always add the same type of oil.

Injection system

The injection system is made up of a displacement pump that, thanks to pistons that are attached to each injector, injects the necessary fuel into the engine to carry out combustion.

Injector breakdowns are one of the most feared since their repair costs are very high. Therefore, it is important to pay attention to the symptoms of a malfunction.

Engine

The engine is the heart of the vehicle, responsible for converting the heat produced by combustion (in diesel) or by explosion (in gasoline) into movement powerful enough to rotate the wheels and move the car. It is usually covered with a black plastic coating.

Brake fluid reservoir

The brake fluid reservoir contains the appropriate amount of this fluid in the system, and its function is to enable the transmission of the force exerted on the brake pedal to the wheels of the car. Without it, serious problems can arise in the brake system, leading to very dangerous situations.

Therefore, it is important to always check their levels and that they are in good condition.

Coolant tank

This transparent tank contains the coolant or antifreeze liquid, whose function is to absorb the heat generated by the engine to prevent overheating and, at the same time, prevent the parts from freezing in winter.

It is usually green or pink. As with other liquids, you must ensure that it is always at the appropriate levels—in this case, between the maximum and minimum marks.

Battery

The battery is the element responsible for providing the electrical energy necessary to start the engine and for powering the electrical equipment when the vehicle is stopped.

Intake manifold

The intake manifold is a set of tubes through which air circulates to the cylinder head pipes. Hidden inside are the flow meter (responsible for measuring the mass of air entering the propeller) and the air filter.

This part provides jerk-free driving and adequate fuel consumption.

Hydraulic oil tank

The hydraulic steering system, thanks to which we do not have to use force to turn the steering wheel, is made up of a hydraulic circuit that is responsible for doing the hardest part of the job. One of its elements is this: the tank, where the hydraulic oil is stored, which, in its fresh state, has a raspberry color, and turns brown when it is old.

Alternator

In the front area of ​​the engine is the alternator (not shown in the example image), a metal piece shaped like a wheel with copper cables inside, which is responsible for supplying electricity to the vehicle while driving and which, in turn, recharges and maintains the battery charge.


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