Brake fluid Ford Focus III (2011–2018) — DOT 4 specification
Brake fluid for Ford Focus III (2011–2018) — required specification, boiling points, system volume, and approved brands.
Технічні характеристики
| Parameter | Value |
|---|---|
| Марка / Модель | Ford Focus III |
| Роки випуску | 2011–2018 |
| Специфікація рідини | DOT 4 |
| Температура кипіння (суха) | 230°C |
| Температура кипіння (волога) | 155°C |
| Об’єм системи | 500 мл |
| Інтервал заміни | 60 000 км / роки |
Схвалені бренди
Ford Motorcraft DOT 4 / Castrol DOT 4 / ATE Super 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). Ford 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)
Часті запитання
What brake fluid does Ford Focus III use?
DOT 4 specification. Температура кипіння (суха): 230°C. Об’єм системи: 500 мл. Схвалені бренди: Ford Motorcraft DOT 4 / Castrol DOT 4 / ATE Super DOT 4.
How often should I change brake fluid in Ford Focus III?
Every 60 000 км or every роки — 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.