Brake Fluid Maintenance: Beyond the Basic Check
When it comes to maintaining a vehiclersquo;s performance and safety, a routine service check is not enough. While other fluids such as engine oil, transmission fluid, and coolant are regularly checked, brake fluid requires a more thorough examination. This article delves into the importance of checking and maintaining your brake fluid during a service, highlighting what needs to be done beyond the basic level check.
Why is Brake Fluid Inspection Vital?
Brake fluid is a critical component of your vehiclersquo;s braking system. It ensures smooth and reliable operation of the brake pads, calipers, master cylinder, and other braking components. Over time, this essential fluid can absorb moisture from the air, leading to decreased boiling point and potential brake failure. Regular inspection and maintenance of brake fluid is crucial to ensure your vehiclersquo;s safety on the road.
Basic Level Check
During a standard service check, the presence of brake fluid is verified by inspecting the fluid reservoir. The reservoir is typically located under the hood and can be seen from the outside. Yoursquo;ll observe whether the fluid level is within the proper range, which is usually marked with a minimum and maximum level indicator. If the fluid level is too low, it may indicate a leak and require repair. While this level check is important, it only addresses one aspect of brake fluid maintenance.
Boiling Point and Water Contamination Check
The boiling point of brake fluid is another critical factor that needs to be checked. Brake fluid has a high boiling point to ensure that it doesnrsquo;t vaporize under intense heat, which could lead to fluid boil and brake failure. Modern brake fluid, such as DOT 3, DOT 4, and DOT 5.1, has a typical boiling point between 284°F (140°C) and 370°F (190°C).
During a service, technicians will also perform a water contamination check. Over time, brake fluid absorbs moisture from the air, leading to an increase in its water content. Elevated water levels can significantly reduce the boiling point of the fluid, making it more susceptible to boiling during hard braking. This can be detected by measuring the water content in the fluid.
Advice and Recommendations
If the water content in the brake fluid is found to be high, a brake fluid flush is typically recommended. This process involves replacing the old fluid with fresh, high-quality brake fluid to restore the proper boiling point and ensure optimal performance. Not all garages perform this service, so it is important to ask and follow professional advice.
Conclusion
A thorough brake fluid check during a service goes beyond a basic level inspection. It involves ensuring the correct boiling point and checking for water contamination, which is crucial for maintaining your vehiclersquo;s safety. Proper maintenance can prevent issues such as brake failure and ensure reliable braking performance for years to come.