KNORR-BREMSE K002856N00 Brake accumulator

709.00

      • Weight [kg]:8,218
      • Item number:K002856N00
      • Manufacturer:KNORR-BREMSE
      • EAN number:IC-AE181A
      • Condition:New
      Use number: K002856N00

Description

The Audi brake accumulator, also known as a brake pressure reservoir, plays a crucial role in your car’s braking system by providing instantaneous high pressure when needed for safe and efficient braking. Here’s a brief description:

Function:

  • The accumulator acts as a storage tank for pressurized brake fluid. It’s constantly pre-charged with hydraulic pressure by a pump, usually powered by the engine.
  • When you press the brake pedal, the accumulator instantly releases this stored pressure into the braking system, boosting the initial brake force and reducing pedal travel.
  • This immediate pressure boost improves braking response time, especially during emergency braking situations, contributing to safer driving.
  • Additionally, the accumulator helps to maintain consistent brake pressure even if the engine stalls or the pump momentarily fails, providing a level of redundancy for added safety.

Location:

  • The brake accumulator is typically located under the hood, mounted near the firewall or in the engine bay. It’s often a spherical or cylindrical metal component.

Types:

  • Nitrogen-filled: Most common on Audi models, using compressed nitrogen gas to pre-charge the accumulator.
  • Spring-loaded: Less common, uses a compressed spring instead of gas for pre-charging.

Signs of a failing brake accumulator:

  • Soft or spongy brake pedal: Indicates insufficient pressure buildup, often requiring a harder pedal press for braking.
  • Delayed braking response: Time lag between pressing the pedal and the car actually slowing down.
  • Warning light: Some Audi models have a specific brake accumulator warning light that might illuminate if there’s a problem.

Maintenance:

  • While the accumulator itself is generally robust, the pre-charging mechanism (pump and pressure regulator) might require periodic inspection and service as part of your car’s maintenance schedule.
  • If you suspect a problem with the brake accumulator, it’s crucial to have it diagnosed and addressed by a qualified mechanic to ensure optimal braking performance and safety.

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