Sequence of execution
1. Prepare the vehicle for operations (see "Preparing a car for maintenance and repair").
2. The fluid level in the tank with the lid removed should be at the "MAX" mark on its wall.

Attention! A decrease in the fluid level in the reservoir with a sealed brake hydraulic system indicates wear of the brake pads.
Information taken from the website VazBook
After installing the tank cap with the sensor, the liquid level in the tank will increase due to the volume of the sensor float and will reach the lower edge of the filler neck.
3. To refill the reservoir with brake fluid, unscrew and remove the cap and add fluid up to the "MAX" mark.

Warning! Brake fluid may damage the body paint, plastic parts and wires if it gets on them. Remove the fluid immediately with a rag, and if it gets on exposed areas of the body, wash off any traces of the fluid with water.
4. Tighten the tank lid.
