Purpose and Specifications

TRW PFB440SE is a DOT 4 ESP brake fluid engineered for modern vehicles with advanced braking systems like ABS, traction control, and electronic stability programs. This 1-liter bottle delivers reliable stopping power in everyday driving and demanding conditions.

Key Performance Features:

• Dry boiling point of 260°C – resists brake fade even under heavy braking
• Wet boiling point of 171°C – maintains safety margin as fluid absorbs moisture over time
• Low-viscosity formula – ensures quick brake response in cold weather down to -40°C
• Compatible with ABS and ESP systems – meets BMW QV 34 001, Audi B 000 750, and Volkswagen TL 776 Z specifications

The fluid contains advanced lubricants, stabilizers, and corrosion inhibitors to protect brake components and maintain manufacturer-intended performance throughout its service life.

When to Use / Replace?

Replacement Schedule: Change brake fluid every 2 years for standard driving, or 1 year if your vehicle uses older DOT 3 fluid. TRW PFB440SE can extend intervals up to 3 years in some applications due to its superior moisture resistance.

Signs You Need a Fluid Change:

• Soft or spongy brake pedal – indicates moisture contamination
• Reduced braking responsiveness – fluid has absorbed water and lost effectiveness
• Brake warning light on dashboard – system detected fluid degradation
• Routine maintenance interval – follow your vehicle manufacturer's schedule

Storage: Keep the sealed bottle in a cool, dry place. Once opened, use within a reasonable timeframe to prevent moisture absorption from air exposure.

Frequently Asked Questions

Q: Can I mix TRW PFB440SE with other brake fluids?
A: No. Never mix different brake fluid types. Always flush the system completely before switching brands or specifications. Mixing fluids can reduce boiling point and compromise braking safety.

Q: Is this fluid suitable for my vehicle?
A: TRW PFB440SE is approved for Audi, BMW, Volkswagen, and other manufacturers requiring DOT 4 ESP fluid. Check your owner's manual or contact your dealer to confirm compatibility. The fluid is specifically designed for vehicles with electronic stability control systems.

Q: Why does brake fluid need regular replacement if the bottle is sealed?
A: Brake fluid naturally absorbs moisture from air through rubber hoses and seals in your brake system. Over time, this water content lowers the boiling point, reducing braking performance and increasing fade risk during heavy braking. Regular changes keep your brakes safe and responsive.