Checking the level and topping up the brake fluid (Focus 2)

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You will need: brake fluid, a clean rag.

USEFUL TIP: Brake fluid type is DOT-4.


USEFUL TIP: We recommend checking the level before each trip and topping up the fluid in the reservoir if necessary. If you have to top up the brake fluid in the reservoir quite often, find (see "Checking the tightness of the brake hydraulic drive") and correct the fault (see section 9 "Brake system").


USEFUL TIP: When replacing the brake fluid in the system, remember or write down the brand of fluid that will be added so that you can use the same brand when topping up.


USEFUL TIP: When replacing the brake fluid in the system, remember or write down the brand of fluid…


The reservoir is installed on the brake master cylinder on the left side of the engine compartment near the front shield (in the photo the reservoir is covered by the air intake box grille).

WARNING: Use caution when handling brake fluid, it is toxic.


USEFUL TIP: In order to avoid unexpected expenses in the future for repairing the brake system, or even the entire car, replace the brake fluid with fresh fluid in a timely manner. It is very hygroscopic and absorbs moisture from the air, which, in addition to causing corrosion of brake system parts, lowers the boiling point of the fluid itself, which can lead to brake failure during frequent intensive braking.




USEFUL TIP: Do not reuse the fluid drained from the system: it is contaminated, saturated with air and moisture.


HELPFUL TIP: If brake fluid gets on wires, plastic or painted body parts, it can cause damage, so always use clean rags when pouring. If fluid gets on these parts, wipe them off immediately with a clean rag.


HELPFUL TIP: If brake fluid gets on wires, plastic or painted body parts, it can cause damage, so…


1. Check the brake fluid level in the reservoir. It should be between the "MIN" and "MAX" marks on the reservoir body.

1. Check the brake fluid level in the reservoir. It should be between the «MIN» and «MAX» marks on…


2. If the fluid level is below the "MIN" mark, unscrew the tank cap…

WARNING: A gradual decrease in the brake fluid level without any leaks most likely indicates that the brake pads need replacing. Check the condition of the brake pads (see "Checking the degree of wear of brake pads, discs and drums"). Untimely replacement of brake pads leads to expensive repairs (replacement of brake discs, drums, calipers)!




WARNING: A gradual decrease in the brake fluid level without any leaks most likely indicates that…


3. …and add brake fluid up to the "MAX" mark.

NOTE: The reservoir is located in a hard-to-reach place, so to add brake fluid you need to use special tools (for example, a syringe and hose) or remove the air intake box grille and water deflector (see "Removing and installing the air intake box grille and water drain shield").


NOTE: The reservoir is located in a hard-to-reach place, so to add brake fluid you need to use…


4. Then screw the cap back on the tank and wipe off any spilled liquid with a clean cloth.






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