Bosch DOT 4 Brake Fluid – Premium Hydraulic Braking System Protection

Purpose and Specifications

This Bosch DOT 4 brake fluid is engineered for all modern hydraulic braking systems, delivering reliable pressure transmission and safety across a wide range of driving conditions. The fluid maintains optimal flow characteristics even at high temperatures, ensuring quick pressure build-up and discharge to your braking system.

• Dry Boiling Point: 230°C – protects against vapor bubble formation during intense braking
• Wet Boiling Point: 155°C – maintains performance as the fluid absorbs moisture over time
• Cold Temperature Flow: Flows smoothly at -40°C, ensuring responsive braking in winter conditions
• Volume: 20 liters – ideal for fleet maintenance, workshops, or large-scale vehicle servicing
• Color: Yellow – easy identification and quality assurance
• Premium Grade: Meets DOT 4 standards with corrosion protection for extended brake system life

When to Use and Replace?

Replace your brake fluid every 2 years, regardless of mileage or driving conditions. Brake fluid absorbs moisture from the air over time, which reduces its boiling point and increases corrosion risk inside your brake lines and components. This 20-liter container is perfect for workshops servicing multiple vehicles or fleet maintenance programs.

Use this fluid in vehicles equipped with standard hydraulic braking systems, including those with ABS and electronic stability control. It is fully compatible with existing DOT 3 and DOT 4 systems, though mixing with DOT 5 (silicone-based) fluids should be avoided.

Frequently Asked Questions

• How often should I check my brake fluid level? Check monthly during routine maintenance. A drop in level may indicate a leak requiring immediate inspection.
• Can I mix this with other brake fluids? Yes, Bosch DOT 4 is compatible with DOT 3 and other DOT 4 fluids unless your vehicle manufacturer specifies otherwise. Never mix with DOT 5 silicone-based fluids.
• Why does brake fluid need replacement if I don't drive much? Brake fluid absorbs moisture from air even when parked. After 2 years, moisture content rises enough to lower the boiling point and risk corrosion, compromising safety regardless of kilometers driven.