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 THE FRONT BRAKES   PARTS   BRAKE PAD   BRAKE DISC   CALIPER 


Caliper

Front brakes

The front brakes are the most important part of your car. They must always be in top condition, and checked frequently. It is not sufficient to rely on the warning light for the brake lining (and usually the wires on the brakes are cut off).

  • The brake pads (3) must have sufficient brake linings, and must be able to move freely.
  • The brake discs (2) must be shiny on both sides, and thick enough.
  • All 4 caliper pistons (6) on each caliper must be able to move freely.
  • The brake accumulator must function.


Brake lining
Min. 3 mm

Brake disc
Min. 18 mm

The brake discs MUST be replaced if they are thinner than 18 mm

• Front and rear brakes are independent.

• The brake accumulator gives spare pressure to the front brakes, as well as to provide pressure to the rest of the system.

• The brake accumulator is found below the battery.

Hydraulics
The drawing is borrowed from the Citroën CX' service manual

If the hydraulic pressure is lost while driving, you will first notice that the car is very heavy on the steering wheel. You will still be able to turn it, but you must use your muscles. The suspension and the rear brakes will stop working. But the front brakes will still work for a while, if the brake accumulator is functioning.
And if everything fails, you can resort to the emergency brakes (hand brakes).




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