CorpusPreparScript/md_file/Information on Brake Support Systems.md

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2025-08-14 09:24:52 +08:00
# Information on Brake Support Systems
Brake support system can help the driver in critical driving or braking situations. The driver is responsible for driving safety.
Continue to brake with the necessary force when a brake support system is performing a control intervention. Steer the vehicle if necessary.
# WARNING
The intelligent technology used in brake support systems cannot overcome the laws of physics, and functions only within the limits of the system. Driving fast on icy, slippery or wet roads can lead to a loss of control of the vehicle and could cause serious injury to the driver and passengers.
Always adjust your speed and driving style according to visibility, weather conditions, road conditions, and traffic. Do not take any safety risks Brake support systems cannot prevent an accident if the vehicle is driven too close to the vehicle in front of it. Always use suitable tyres. Driving stability depends on the tyre grip. Always keep the footwell under the pedals clear so that the brake pedal can move freely. The ESC, ABS and ASR can function properly only if all four wheels are fitted with the correct tyres. When an ABS fault occurs, the ESC, ASR, and EDL will also fail.
The status of the brake functions is checked automatically when the start button is switched on. The indicator lamp light up briefly and then go out again. If an indicator lamp remains lit up, there is a fault. Go to a suitably qualified workshop immediately. Volkswagen recommends contact with an ID. UNYX Service Center.
# WARNING
The effectiveness of ESC can be reduced considerably if other components and systems which affect driving dynamics are not serviced properly or are not functioning properly. This applies in particular to changes to the suspension and wheel and tyre combinations that have not been approved.
Have vehicle conversions and modifications carried out only by a suitably qualified workshop. Volkswagen recommends contact with an ID. UNYX Service Center. Always use suitable tyres. Driving stability depends on the tyre grip.
# Electronic Stability Control (ESC)
ESC control intervention to reduce the risk of skidding and improve driving stability. The indicator lamp flashes yellow.
# Traction control system (ASR)
ASR control intervention to prevent the wheels from spinning. The indicator lamp flashes yellow.
ASR reduces the drive output if wheelspin occurs and adapts the output to suit the road surface conditions. The ASR makes it easier to pull away, accelerate and drive up steep slopes.
# Anti-lock brake system (ABS)
ABS prevents the wheels from locking during braking so that the vehicle can still be steered.
# Brake Assist system.
Brake Assist system.BAS can help to reduce the stopping distance. The brake assist system reinforces the braking force when the driver depresses the brake pedal quickly in an emergency situation.
# Electronic differential lock (EDL and XDS)
EDL brakes a spinning wheel automatically and distributes the drive force to the other drive wheels.
XDS is an extension of the electronic differential lock and improves traction by braking interventions in order to keep the vehicle on its intended course.
# Automatic Post-Collision Braking System
The Automatic Post- Collision Braking System automatically triggers braking if the airbag control unit detects a collision in an accident situation.
Requirements for automatic braking:
The driver does not press the accelerator.
# Electronic brake pressure distribution system (EBD)
The electronic brake pressure distribution (EBD) regulates the braking force between the front axle and the rear axle outside of any ABS regulation. This avoids excessive braking of the rear axle and keeps the vehicle stable during braking.
# Electromechanical brake servo (EBS)
The electromechanical brake servo (EBS) supports the driver's foot movement when the ignition is switched on, and boosts the pressure applied to the brake pedal by the driver EBS. In the event of a braking intervention by a driver assist system, such as when ACC is performing a control intervention or during emergency braking, the brake pedal may move independently.
The brake pressure boost will reduce gradually after you switch off the ignition. Messages are displayed on the instrument cluster display if the vehicle is still held by means of the brake pedal. The brake servo function is restricted in this case.
Secure the stationary vehicle against rolling away.
# WARNING
Driving without the brake servo or with restricted brake servo function can considerably increase the braking distance and cause accidents and serious injuries.
If the brake servo is not functioning, the brake pedal must be depressed more forcefully as the braking distance will be increased due to the lack of assistance for the brake system. Always keep the footwell under the pedals clear so that the brake pedal can move freely.
# Brake blending
The brake blending function regulates between the braking action of the electric drive motor during energy recovery (brake energy recuperation) and mechanical braking by the driver.