Automotive brake fluid is hygroscopic, which means that moisture builds up over time. Moreover, the process continues even though the entire system is completely shut down and in good working order. There are many ways to determine how much water is in the “brake”. And the AvtoVzglyad portal tells about one of the most original.
Let’s first remember why this is happening. The DOT-4 consumable is highly absorbent. That is, as mentioned above, it absorbs moisture from the environment, and also collects small rubber particles from the wear of the sleeves of the master cylinder pistons. Other dirt such as rust also collects there.
This raises the freezing point of the “brake”. That is, in severe frosts, the car may have problems slowing down. And in the heat the “slurry” boils. The result is the same, but the accidents are more serious because speeds are higher in summer.
Therefore, it is recommended to check the condition of the consumable. They usually do this once a year for scheduled maintenance. If we talk about the service, they use special professional equipment. Well, drivers who prefer to repair their “iron horse”, come up with other ways on their own. For example, run a diagnosis using a multimeter, which measures the battery charge.
To do this, turn the device switch to the “20 Volt” position, touch the positive terminal of the battery with the positive probe, and dip the negative into the tank with liquid. This causes a number to light up on the display, which means nothing. To understand something, additional procedures are required.
You need to do the same, but with the new liquid that is in the jar. Well, then we put on thick glasses and build a mathematical relationship between the indicators. This allows you to estimate the concentration of water approximately.
In general, the method is very complicated and clearly not suitable for everyone. In addition, the costs are high. After all, you need to open the tank with a new “brake”, and you cannot store the consumable for a long time in an unpackaged form – it will simply deteriorate.
So it is much easier to buy a special device in a car store for about 1000-2000 rubles. This allows you to immediately get at least some understandable values, without “climbing” into the jungle of mathematical calculations.
Let’s first remember why this is happening. The DOT-4 consumable is highly absorbent. That is, as mentioned above, it absorbs moisture from the environment, and also collects small rubber particles from the wear of the sleeves of the master cylinder pistons. Other dirt such as rust also collects there.
This raises the freezing point of the “brake”. That is, in severe frosts, the car may have problems slowing down. And in the heat the “slurry” boils. The result is the same, but the accidents are more serious because speeds are higher in summer.
Therefore, it is recommended to check the condition of the consumable. They usually do this once a year for scheduled maintenance. If we talk about the service, they use special professional equipment. Well, drivers who prefer to repair their “iron horse” themselves come up with other ways. For example, to conduct diagnostics using a multimeter, which measures the battery charge.
To do this, turn the device switch to the “20 Volt” position, touch the positive terminal of the battery with the positive probe, and dip the negative into the tank with liquid. This causes a number to light up on the display, which means nothing. To understand something, additional procedures are required.
You need to do the same, but with the new liquid that is in the jar. Well, then we put on thick glasses and build a mathematical relationship between the indicators. This allows you to approximately estimate the concentration of water.
In general, the method is very complicated and clearly not suitable for everyone. In addition, the costs are high. After all, you need to open the tank with a new “brake”, and you cannot store the consumable unpacked for a long time – it will simply deteriorate.
So it is much easier to buy a special device in a car store for about 1000-2000 rubles. This allows you to immediately get at least some understandable values, without “climbing” into the jungle of mathematical calculations.
Source: Avto Vzglyad
Donald Salinas is an experienced automobile journalist and writer for Div Bracket. He brings his readers the latest news and developments from the world of automobiles, offering a unique and knowledgeable perspective on the latest trends and innovations in the automotive industry.