Purpose and Specifications

Bosch Brake Fluid 1 987 479 106 is a premium DOT 4 synthetic fluid designed for hydraulic brake and clutch systems in cars, trucks, and light commercial vehicles. This 0.5-liter bottle delivers reliable stopping power with excellent thermal stability up to 230°C dry and 155°C wet, preventing brake fade during hard braking or high-heat conditions like mountain descents.

It flows smoothly in cold weather down to -40°C, ensuring quick ABS and ESP response, while corrosion inhibitors protect calipers, seals, and lines for longer component life. Compatible with DOT 3, DOT 4, and DOT 4 Plus systems, it's ideal for modern vehicles with advanced safety features.

When to Use / Replace?

Flush brakes every 2 years or 40,000 km to remove moisture that lowers performance and causes corrosion. Replace immediately if pedal feels spongy, brakes overheat (above 150°C), or fluid looks dark. Shelf life is 3-5 years unopened; store in a cool, dry place.

Key Practical Benefits:

• Stays effective in extreme temps: won't boil under heavy use or freeze in winter.
• Reduces wear on rubber parts and metal components.
• Extended service: lasts 50% longer than standard DOT 4.

FAQ

Can I mix this with other brake fluids? Yes, safe to mix with DOT 3 or DOT 4, but for best results, flush the system completely.

Is it suitable for my ABS-equipped car? Absolutely, low viscosity ensures fast response in ABS, ESP, and TCS systems even at -40°C.

How do I know when to change it? Check every 12 months visually; replace every 24 months or 40,000 km for safety.