General information about the braking system The Focus brake system control elements are installed under the hood: 1 - expansion tank with brake fluid; 2 - active brake booster with integrated brake master...
Description of the brake system design The Ford Focus comes with four disc brakes as standard: the front disc brakes with internal ventilation are 22 mm thick and 258 mm in diameter. They are clamped in...
Main components of the braking system Dual-circuit braking system: a braking system divided diagonally. Each brake circuit connects one front wheel to one opposite rear wheel. Master brake cylinder (MBC):...
Anti-lock brake system ABS control unit: continuously processes the information about the number of wheel revolutions received from the wheel sensors and compares it with the programmed...
Checking the brake fluid level There is a brake warning light on the dashboard of your Focus. The light usually goes out as soon as the handbrake is released. If not, check the brake fluid level in...
Checking the brake system in the workshop On every meter of public road traffic, brakes play a decisive role in your safety and the safety of other road users. That is why the best life insurance is good brakes....
Checking the brake system To be able to clearly identify possible leak locations, the car must be dry underneath. Therefore, choose a day that is not rainy for the check. Check all hose...
Checking the brake booster Turn off the engine, press the brake pedal several times and hold it in the lowest position. Start the engine. The pedal should move a few more millimeters. If not, the...
Checking the operation of the brakes You should only test your brakes on the road if you cannot interfere with or endanger other road users. To test your brakes, find a level, preferably secluded road with...
Measuring wear on disc brake linings The front pads wear out faster than those on the rear axle. Under normal driving conditions, check the pads every 20,000 km, but at least once a year. If the measurement...
Brake pedal and brake pad The free travel of the brake pedal (press by hand) should be equal to a maximum of one third of the entire pedal travel. But this check will not detect worn brake pads,...
Checking brake disc wear Support the vehicle securely and remove the wheels from the relevant axle: use this opportunity to also check the brake linings. Stages of work A slightly bluish...
Bleeding the brake system Air in the brake system turns each brake into an air pump, so bleed the system immediately, for example after any work that required removing brake hoses or pipes. It is...
Brake fluid — general information The main components of brake fluid are polyglycol ether and polyglycol. This mixture is still liquid at -40°C and has a very high boiling point of approximately 270°C....
Replacing brake fluid Brake fluid should be replaced every two years. Workshops do this with a special filling device. But you can do it yourself - the work is done in the same way as when...
Removing the master brake cylinder Before removing the master cylinder, make sure there is no vacuum in the brake booster. To do this, either disconnect the vacuum line from the brake booster or press the...
Removing the brake booster Before removing the master cylinder, make sure there is no vacuum in the brake booster. To do this, either disconnect the vacuum line from the brake booster or press the...
Removing brake hoses First, unscrew the union nut of the brake pipe, then loosen the other end of the hose. Make sure that the pipe does not twist. Most brake hoses are secured with a holder...
Replacing brake disc linings Brake pads are always replaced in pairs on both sides of the axle. Otherwise, this will lead to different friction coefficients on the brake discs, which will later,...
Removing brake discs Always replace brake discs in pairs. Replacing them on one side changes the friction coefficient. The brakes may pull unevenly. Dismantling on the front axle First,...
Restoring the mobility of the brake caliper and piston If the dust seal is defective or poorly installed, dirt and moisture will penetrate into the hydraulic cylinder. Over time, the sliding piston will rust slowly but...
Replacing the rear axle mudguard Dismantling Raise the rear of the vehicle securely on a level surface. Remove the wheels. Remove the rear caliper as described above. Knock off the wheel hub dust cap...
Handbrake — General Information With the handbrake (parking brake), you prevent the parked Focus from rolling away unintentionally or fix it when driving uphill. It exerts mechanical force on the rear...
Replacing handbrake cables Dismantling Securely raise the rear of the vehicle and remove the wheels. Release the handbrake lever. Remove the center console. Loosen the handbrake cable. To do this,...
Adjusting the handbrake As mentioned above, the rear brake collets have an automatic adjustment device. After removing the handbrake cables, you must adjust the base length of the control...