Purpose and Specifications

ATE 03.9901-5811.2 is premium DOT 4 brake fluid in a 20-liter can, perfect for professional shops and high-volume brake maintenance. This glycol-based fluid delivers superior high-temperature performance, preventing brake fade during heavy braking, towing, or mountain driving. It stays effective up to 260°C dry boiling point, resisting vapor lock for reliable stopping power in ABS and ESC systems.

Key practical benefits include corrosion protection for calipers and master cylinders, compatibility with DOT 3 systems, and smooth lubricity that extends seal life. Ideal for European cars, motorcycles, and light trucks needing dependable braking under stress.

When to Use / Replace?

Use ATE DOT 4 for demanding conditions like stop-and-go traffic, towing heavy loads, or high-speed drives where brakes heat up fast. Replace every 2 years or 40,000 km, or sooner if moisture contamination causes spongy brakes—DOT 4 absorbs water to protect parts but needs fresh fluid to maintain peak safety. Shelf life is 5 years unopened when stored cool and dry.

Packaging dimensions: Height 24.5 cm, Width 10.5 cm, Depth 16.7 cm, Weight 20.5 kg (fluid + can).

FAQ

Q: Can I mix ATE DOT 4 with DOT 3 fluid?
A: Yes, it's fully compatible and safe, upgrading performance without issues.

Q: How does it handle extreme heat?
A: Excels in hot conditions, boiling only above 230°C wet—keeps brakes firm even after repeated hard stops.

Q: What's the best replacement schedule?
A: Flush every 2 years or 40,000 km to avoid moisture buildup and corrosion.