Purpose and Specifications

VALEO 402403 is a premium synthetic DOT 4 brake fluid that delivers reliable stopping power for everyday driving and spirited performance. This 1-liter bottle protects your braking system from moisture absorption, preventing corrosion and maintaining smooth pedal feel even under heat.

• High-heat resistance: Stays effective up to 245°C dry boiling point, reducing brake fade during hard stops or downhill drives.
• Long-lasting protection: Synthetic formula fights acid buildup, keeping calipers and lines clean for years.
• Universal fit: Meets DOT 4 specs for most European and Asian cars, including Peugeot, Citroën, and more.
• Practical size: 1 liter fills most systems; weighs just 1.12 kg for easy handling.

When to Use / Replace?

Replace brake fluid every 2 years or 40,000 km to avoid moisture-related failures—old fluid boils at lower temps, causing spongy brakes. Ideal for high-mileage drivers, track days, or cars in humid climates. Shelf life is 3-5 years unopened; check color (clear to light yellow is good).

Operating range: Reliable from -40°C cold starts to extreme heat without vapor lock.

FAQ

Can I mix VALEO 402403 with my old DOT 4 fluid?
Yes, it's fully compatible for top-ups, but full flush every 2 years is best for peak performance.

Is this fluid safe for ABS and ESP systems?
Absolutely—DOT 4 low-viscosity formula works perfectly with modern electronic brakes.

How do I know if my brake fluid needs changing?
Test boiling point or check for dark color/burnt smell; pros recommend every 24 months regardless of mileage.