Note: On models with an Easytronic robotic gearbox, the clutch actuator is equipped with a separate brake fluid reservoir (see Chapter 6, Section 4).
4.23. Brake fluid level in reservoir (3) must be between the MAX and MIN·marks (on the example of the Corsa-C model) - the protective cover is removed: 1. The upper seal of the bulkhead of the engine compartment; 2. Protective cover
24. The liquid level inside the tank is clearly visible through the translucent walls of the latter and must be maintained between the MIN and MAX marks, a little short of the top.
25. If it is necessary to adjust the fluid level, carefully wipe the reservoir cap and the area around it with a clean rag to prevent dirt from entering the hydraulic system.
26. When pouring liquid into the tank, make sure that it does not splash onto the surrounding painted surfaces of the body elements. Add only fresh fluid of the specified grade (Withm. Specifications at the beginning of this Chapter), - the mixing of two liquids of different grades is in no case unacceptable and may lead to failure of the corresponding system!
Attention: Brake fluid is highly chemically aggressive - do not let it get into your eyes and onto painted surfaces of body panels! Do not use hydraulic fluid that has stood for more than one year or has been stored in a loosely closed container to add to the system. Remember that brake fluid is very hygroscopic, ie. has the ability to absorb moisture from the air, as a result of which the effectiveness of the brake system can be dangerously reduced!
27. At the stage of level adjustment, you should also carefully check the condition of the liquid and the internal walls of the tank. If dirt deposits, solid foreign particles or water droplets are detected, the system must be emptied and filled with fresh hydraulic fluid (see Chapters 6 and 9).
28. After the reservoir is filled to the required level, fit the lid tightly on it.
29. Remember that the level of brake fluid in the reservoir gradually drops as the friction linings of the brake pads actuate, but this decrease is always very small.
30. If the liquid has to be topped up too often, then there is a leak in the system, the source of which must be immediately identified and the cause eliminated. Carefully inspect all brake lines and their fittings (see Section 9), and on models with a manual transmission, the entire path of the clutch hydraulic drive, including the slave cylinder (see chapter 6).
31. In case of significant losses of brake fluid, when the reservoir is completely empty, after eliminating the cause of the leak, it is necessary to bleed the hydraulic paths of the brake system and the clutch actuator (see Chapter 6 and 9).
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