Checking the level and adding brake fluid to the reservoir of the hydraulic drives of the brake system and clutch release (Mondeo 4)

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You will need: brake fluid, a clean rag.

TIP: Brake fluid type – Ford or Motorcraft Super DOT-4 brake fluid.


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, fix the problem immediately (see Brake system).


USEFUL TIP: When replacing the brake fluid in the system, remember or write down the brand of fluid that was 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 mounted directly on the main brake cylinder on the left side of the engine compartment near the front shield.

NOTE: The brake master cylinder reservoir also serves as a feeder reservoir for the clutch master cylinder (for vehicles with a manual transmission) and is connected to the cylinder by a flexible hose. Checking the level and adding brake fluid for vehicles with an automatic transmission is similar.


The level of the working fluid is controlled visually. The translucent wall of the tank body is marked with "MAX" and "MIN".

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




USEFUL TIP: 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.


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

If brake fluid gets on wires, plastic or painted body parts, it can cause damage. If fluid gets on these parts, wipe them off immediately with a clean cloth.

If brake fluid gets on wires, plastic or painted body parts, it can cause damage. If fluid gets on…


1. Check the brake fluid level in the reservoir. It should not be below the "MIN" mark on the reservoir body.

1. Check the brake fluid level in the reservoir. It should not be below the «MIN» mark on the…


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



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


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

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


4. Then screw the tank cap back on.

WARNING: A gradual decrease in the brake fluid level without leaks most likely indicates the need to replace the brake pads. Check the condition of the brake pads. Untimely replacement of the pads leads to expensive repairs (replacement of brake discs, calipers)!






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