Brake fluid BMW 3 Series F30 (2011–2019) — DOT 4 specification
Brake fluid for BMW 3 Series F30 (2011–2019) — required specification, boiling points, system volume, and approved brands.
Especificaciones técnicas
| Parameter | Value |
|---|---|
| Marca / Modelo | BMW 3 Series F30 |
| Años de producción | 2011–2019 |
| Especificación del líquido | DOT 4 |
| Punto de ebullición seco | 230°C |
| Punto de ebullición húmedo | 155°C |
| Volumen del sistema | 500 ml |
| Intervalo de cambio | 60 000 km / años |
Marcas aprobadas
Castrol DOT 4 / ATE Super DOT 4 / BMW Brake Fluid DOT 4
Why Brake Fluid Must Be Changed Regularly
Brake fluid is hygroscopic — it absorbs moisture from the air over time. As moisture content increases, the boiling point drops significantly. When the fluid boils under heavy braking, vapour bubbles form and the pedal goes to the floor (vapour lock). BMW requires DOT 4 with a dry boiling point of at least 230°C.
How to Check Brake Fluid Condition
- Test strips — dip a strip in the reservoir; colour indicates moisture content
- Electronic tester — measures boiling point directly (most accurate)
- Visual inspection — dark/brown fluid indicates it must be replaced (fresh fluid is amber/clear)
Preguntas frecuentes
What brake fluid does BMW 3 Series F30 use?
DOT 4 specification. Punto de ebullición seco: 230°C. Volumen del sistema: 500 ml. Marcas aprobadas: Castrol DOT 4 / ATE Super DOT 4 / BMW Brake Fluid DOT 4.
How often should I change brake fluid in BMW 3 Series F30?
Every 60 000 km or every años — whichever comes first. This is a safety-critical service.
Can I mix different DOT grades?
You can mix DOT 3 and DOT 4 in an emergency, but never mix DOT 5 (silicone-based) with DOT 3/4 (glycol-based). Always use the correct specification: DOT 4.
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