The German car industry is considered by many motorists, and not without reason, to be the best in the world. But sometimes German engineers offer very controversial and ambiguous solutions. For example, a bag of silica gel, which is placed in the expansion tank of the cooling system. These can be found under the hoods of various models of Mercedes-Benz and Volkswagen. The AvtoVzglyad portal tells how a modest bag creates huge problems for the car owner.
Silica gel is widely used in industry and daily life. It prevents moisture, mold and rust. Therefore, the granules are placed in boxes of shoes or used in double glazing to collect condensation. The automotive industry is not left out either.
German companies place silica gel cartridges in expansion vessels so that no corrosion occurs in cooling systems. Especially where G13 antifreezes are used. The chemical compounds in the granules hold the mass fraction of silicates in the “cooler” composition. This is a kind of safety net in case the driver rarely changes antifreeze and loses the balance of chemical elements.
But this cartridge is not eternal. As soon as it breaks and the granules enter the cooling system, they quickly clog all the bottlenecks and honeycombs in the radiators and begin to disrupt the normal circulation of the liquid. The first failed “stove”. With the Mercedes-Benz GLS, for example, it simply falls off. It gets cold in the cabin and in winter the glass freezes completely. If the problem has reached the main radiator, the engine can overheat, promising huge problems up to a major overhaul.
The difficulty lies in the fact that when diagnosing the electronics, no errors are displayed. But the temperature is rising! As a result, cunning masters can “relax” a customer for a lot of money. Especially when it comes to Mercedes. The problem itself is solved with little bloodshed: they replace the expansion tank and antifreeze, and also pump the system.
As for the owner, we will advise him to learn materially. If there is an inscription “Mit silikat” on the cap of the expansion tank, then there is a cartridge with granules inside. You just need to pull it out and there will be no problems. And we also recommend that you look for a proven service where such a simple job will be done immediately and antifreeze will be poured into the system, which already contains silicates and corrosion inhibitors.
Silica gel is widely used in industry and daily life. It prevents moisture, mold and rust. Therefore, the granules are placed in boxes of shoes or used in double glazing to collect condensation. The automotive industry is not left out either.
German companies place silica gel cartridges in expansion vessels so that no corrosion occurs in cooling systems. Especially where G13 antifreezes are used. The chemical compounds in the granules hold the mass fraction of silicates in the “cooler” composition. This is a kind of safety net in case the driver rarely changes antifreeze and loses the balance of chemical elements.
But this cartridge is not eternal. As soon as it breaks and the granules enter the cooling system, they quickly clog all the bottlenecks and honeycombs in the radiators and begin to disrupt the normal circulation of the liquid. The first failed “stove”. With the Mercedes-Benz GLS, for example, it simply falls off. It gets cold in the cabin and in winter the glass freezes completely. If the problem has reached the main radiator, the engine can overheat, promising huge problems up to a major overhaul.
The difficulty lies in the fact that when diagnosing the electronics, no errors are displayed. But the temperature is rising! As a result, cunning masters can “relax” a client for a lot of money. Especially when it comes to Mercedes. The problem itself is solved with little bloodshed: they change the expansion tank and antifreeze, and also pump up the system.
As for the owner, we will advise him to learn materially. If there is an inscription “Mit silikat” on the cap of the expansion tank, then there is a cartridge with granules inside. You just need to pull it out and there will be no problems. And we also recommend that you look for a proven service where such a simple job will be done immediately and antifreeze will be poured into the system, which already contains silicates and corrosion inhibitors.
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.