Purpose and Specifications

TRW PFB701SE is a premium DOT 5.1 ESP brake fluid engineered for modern vehicles with electronic stability control systems. This fluid is specifically formulated to work with ABS and ESP systems that require rapid pressure modulation—measured in milliseconds—to maintain vehicle control during emergency braking.

The fluid's key advantage is its low viscosity (thinner consistency), which allows it to flow quickly through the tiny channels in ABS hydraulic units. This faster flow means your braking system can respond more quickly to sudden stops, reducing stopping distance and preventing loss of vehicle control.

Key Performance Specs:

• Dry boiling point: 260°C—this means the fluid resists vapor lock even under extreme braking conditions, keeping your brakes responsive
• Wet boiling point: Exceeds 180°C—maintains safety even after absorbing moisture from air over time
• Volume: 1 liter bottle
• Compatible with DOT 3, DOT 4, DOT 4 ESP, and DOT 5.1 systems

The fluid contains advanced lubricants, stabilizers, anti-oxidants, and corrosion inhibitors to protect your entire brake system from wear and rust.

When to Use / Replace?

Replace your brake fluid every 2 years as standard maintenance. TRW recommends annual replacement if your vehicle uses DOT 3 fluid. Over time, brake fluid absorbs moisture from the air, which lowers its boiling point and reduces braking performance. Regular replacement keeps your brakes working exactly as the manufacturer intended.

Use TRW PFB701SE if your vehicle manufacturer specifies DOT 5.1 or DOT 5.1 ESP fluid. Always check your owner's manual before purchasing—using the wrong fluid type can damage your brake system.

Frequently Asked Questions

Q: Why is this fluid better than standard DOT 4?
A: TRW PFB701SE is specifically designed for vehicles with electronic stability control. Its lower viscosity allows ABS systems to modulate brake pressure faster, which means shorter stopping distances and better control during emergency braking. Standard DOT 4 fluid is thicker and slower to respond in these high-speed systems.

Q: How long does brake fluid last once opened?
A: Once opened, use the fluid within the same service session. Brake fluid absorbs moisture quickly from air exposure. Store unopened bottles in a cool, dry place away from direct sunlight.

Q: Can I mix this with other DOT fluids?
A: TRW PFB701SE is compatible with DOT 3, DOT 4, DOT 4 ESP, and DOT 5.1 fluids. However, mixing different types is not recommended. Always flush your system with the new fluid type when switching to ensure optimal performance and safety.