Raise the car.
Clean the brake line.
Caution! Brake pipes are coated with a layer of plastic to protect against corrosion. If this layer is damaged, the pipe must be replaced. Therefore, wire brushes, sandpaper and sharp objects must not be used for cleaning.
Check the lines from the master cylinder to the wheel cylinders using a portable lamp or flashlight.
The pipes must not be bent or pinched. If so, replace them.
Original posted on the website www.OPELBOOK.ru
On the moving parts of the car, the pipes are connected to the wheel cylinders using brake hoses. The hoses are made of a material that can withstand high pressure, but over time they crack, swell and become damaged. In such cases, they must be replaced without delay.
To detect damage, bend the hose by hand in different directions. Do not twist the hoses, observe the color marking!
Turn the steering wheel left and right until it stops. The brake hoses should not touch any parts of the car.
The connection points of pipelines and hoses must not be wet.
Caution! If the reservoir or seals are wet, this does not necessarily indicate a faulty master cylinder. Most likely, the fluid has leaked through the vent in the reservoir cap or through the plug seal.

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