It would seem that a penny detail, but a whole car can cause problems …
Alexei Revin and Mikhail Kolodochkin, experts at Za Rulem, tested expansion tank caps using a special technique.
The covers for tanks installed on all VAZ vehicles, except for Vesta, XRAY, Largus and the “classics”, were taken into account, samples were purchased throughout Russia online.
*This material was created by a person who has the status of a foreign agent in the Russian Federation.
The cork must perform three functions: to prevent the liquid from splashing, to keep the pressure in the system so that the liquid does not boil during expansion, to let air into the tank so that a vacuum does not form.
And it turned out that out of 10 covers, two cope with all the tasks, and even that is not perfect! One of the caps that completely failed the tests is AROKI 332080 from Dimitrovgrad. Let’s make a reservation that we mean a specific sample, and we urge you not to judge all products of the same name.
But this cover does not hold pressure at all, which means that the engine can boil even with a small load …
We read which other covers failed the tests, and which ones can be used.
Photo: “Behind the wheel”
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