Purpose and Specifications

Febi Bilstein 180589 is a premium fully synthetic DOT 4 Plus brake fluid designed for hydraulic brake and clutch systems in vehicles like Audi, Mercedes-Benz, VW, and Volvo. It protects against oxidation and corrosion, mixes easily with other glycol-based fluids, and delivers reliable performance even under intense heat from hard braking.

This 0.5-liter bottle handles operating temperatures up to 260°C dry for fade-free stopping power and 180°C wet to resist moisture buildup over time. Meets strict standards like ISO 4925, MB 331.0, and SAE J1703 for modern ABS and electronic brakes.

When to Use / Replace?

Use Febi 180589 for routine flushes or upgrades in high-performance driving. Replace every 2 years or 40,000 km - whichever comes first - as brake fluid absorbs water, dropping its boiling point and risking spongy brakes. Check color: clear to light amber is good; dark or cloudy means replace now. Shelf life is 3-5 years unopened in cool, dry storage.

• Ideal for spirited drives or towing where brakes heat up fast.
• Prevents vapor lock for firm pedal feel in emergencies.
• Compatible with DOT 3/4 systems - top off without full flush.

FAQ

Q: Can I mix this with my old DOT 4 fluid?
A: Yes, it's fully mixable with other synthetic glycol DOT 4 fluids for safe top-offs.

Q: How do I know if my brake fluid needs changing?
A: Test boiling point at a shop or look for darkening color/moisture - change every 2 years/40,000 km for safety.

Q: Is it safe for my Mercedes?
A: Absolutely, approved to MB 331.0 spec for reliable corrosion protection and heat resistance.