Bosch ENV6 is a high-performance hydraulic brake fluid developed for modern braking systems that demand maximum safety, stable braking response, and long service life. It meets and exceeds DOT 3, DOT 4, and DOT 5.1 requirements and complies with the latest ISO 4925 Class 7 specification.

Its low-viscosity formulation allows fast and consistent fluid flow through narrow brake lines, calipers, and wheel cylinders, ensuring precise pedal feel and reliable braking performance, including vehicles equipped with ABS and ESP systems. High lubricity helps reduce internal wear, suppress noise, and protect brake system components against corrosion.

Bosch ENV6 offers excellent thermal stability with a high boiling point, helping to prevent vapour lock under heavy braking or high-temperature conditions. Compared to conventional DOT fluids, it supports an extended replacement interval of up to 3 years or 60,000 km, reducing maintenance frequency while maintaining safety.

Suitable for most passenger vehicles manufactured from 1990 onwards that specify DOT 3, DOT 4, or DOT 5.1 brake fluid. Not suitable for systems requiring LHM (mineral oil) or DOT 5 (silicone-based) brake fluid. Brake system servicing should be performed by trained professionals.

Technical Highlights:

• DOT 3 / DOT 4 / DOT 5.1 compatible

• ISO 4925 Class 7 compliant

• Dry boiling point: ≥270°C

• Wet boiling point: ≥180°C

• Viscosity at −40°C: ≤700 mm²/s

• OE approvals: Mercedes-Benz MB 331.0, Volvo TR33413395-002

• Packaging: 1L metal can

• Made in Germany

Q&A

Is this brake fluid suitable for my vehicle?
It is suitable for vehicles that require DOT 3, DOT 4, or DOT 5.1 brake fluid, including models with ABS and ESP systems. Always confirm your vehicle manufacturer’s specification before use.

Can this be mixed with existing brake fluid?
Yes, it can be mixed with DOT 3, DOT 4, or DOT 5.1 fluids. Do not mix with DOT 5 (silicone-based) or LHM (mineral oil) brake fluids.

Is this suitable for ABS and ESP systems?
Yes. The low-viscosity formulation is designed for modern braking systems and supports stable ABS and ESP operation.

How often should the brake fluid be replaced?
Under normal driving conditions, replacement is recommended every 3 years or up to 60,000 km. Shorter intervals may apply under severe driving conditions.

Why is a high boiling point important?
A high boiling point helps prevent vapour lock during heavy braking or high temperatures, ensuring consistent braking performance and safety.

Is professional installation required?
Yes. Brake fluid replacement and bleeding should be carried out by trained professionals to ensure correct operation and braking safety.