Winter is a difficult time for the car: all its systems have to work in no most favorable conditions. This year with its sharp temperature differences from the plus marks to strong frosts and back for a short time — a significant example of such difficulties. Therefore, it is preferable to check all the car systems when preparing for the warm season. Special attention should be paid to the brake system, because your safety depends on its service.
The fact that there is a problem, the behavior of the car will tell the brake path itself, the brake path becomes longer, the brake pedal stroke increases, or the pedal spool itself when you press it, noise may occur. Also in braking can be felt vibration, the car can take away. If you observe one or more of these signs, it means somewhere in the braking system problems have arisen.
Flexible brake hoses — especially those that can come into contact with other details or have bend, — you need to carefully examine. If there is a loss, the hose is twisted, lost elasticity, wet to the touch, it needs to be replaced urgently. The same applies to an externally serviceable hose if small cracks become noticeable on its colors: until it proceeds, but it can occur at any time.
Wet spots under the bottom of the car will tell about problems with brake cylinders after a long parking lot. Another characteristic feature is a big brake pedal move: when pressed, she «goes to the floor.» Weak place, especially in frost, usually become seals: Rubber with time or under the influence of low temperatures becomes rigid and cracks, leakage occurs.
It is worth paying attention to the state of the brake fluid: it must be transparent, without extraneous impurities. Lumbout, the appearance of the sediment — signs that it is time to change. The quality of the brake fluid is especially important for cars equipped with ABS and ESP® systems: even a slight change in viscosity or the formation of steam bubbles may affect the speed and accuracy of their operation.
The next check step is more logical to perform simultaneously with the seasonal shift of tires — it’s about the state of the brake pads and disks. If the friction material of the brake pad is worn out at least 50%, they are time to replace with new ones. The normal residual thickness of the friction layer (lining from special resistant abrasion and temperature differences) is considered to be the value of at least 3.5 mm. It is believed that the pads were worn out, circular scratches and furrows on the brake disc, the appearance of metal chips on it. Yes, and the disc itself with such damage also does not work well efficiently and needs at least in recovery (although the replacement for a new one is always a more reliable and safe option).
Regardless of what is subject to replacement — discs or pads — these parts are changing certainly on the entire axis, in a pair. And new brake pads and discs must necessarily run.
Related the problem and set an approximate cause of troubleshooting in the operation of the brake system can any car enthusiast. But we recommend repairing or replacing parts on a professional service station with appropriate equipment and dynamometric stands, with trustworthy a reputation of mechanics (Specialists Bosch auto service will always be happy to help). After all, as already mentioned above, the operation of the brake system is closely related to the functioning of automatic security systems, so it is important that the service is made on high-quality equipment and masters that have the necessary qualifications and experience.