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Brake support systems -> Automatic Post-Collision Braking System for Your Volkswagen Transporter Van Seventh Generation (2021-2025)

a correspondingly qualified workshop immediately.  
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 modifications made  
to the suspension and the use of non-approved wheel and tyre combinations.  
Have repairs and modifications to your vehicle carried out only by a suitably qualified workshop.  
Always use suitable tyres. The 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 (TCS)  
TCS  
control intervention to prevent the wheels from spinning. The indicator lamp flashes yellow.  
The TCS reduces the drive output if wheelspin occurs and adapts the output to suit road surface conditions. The TCS  
makes it easier to pull away, accelerate and drive up hills →  
.
Anti-lock brake system (ABS)  
ABS  
prevents the wheels from locking during braking so that the vehicle can still be steered →  
.
Brake assist system (BAS)  
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.  
If you reduce the pressure on the brake pedal, the brake assist system will switch off the brake servo function.  
Electronic differential lock (EDL)  
EDL  
brakes a spinning wheel automatically and distributes the drive force to the other drive wheels.  
The EDL switches off automatically under unusually heavy loads to prevent the brake from overheating. The EDL  
switches back on again automatically as soon as the brake has cooled down.  
Automatic Post-Collision Braking System  
In the event of a collision, the Automatic Post-Collision Braking System can help the driver to reduce the risk of  
skidding, and the danger of secondary collisions, through automatic braking.  
The Automatic Post-Collision Braking System functions only for collisions that are detected as a collision by the  
airbag control unit.  
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The vehicle is braked automatically if the required systems have not been damaged in the collision and have  
remained functional.  
Requirements for automatic braking:  
The driver does not press the accelerator.  
Electronic brake pressure distribution system (EBD)  
The EBD  
regulates the braking force between the front axle and the rear axle even outside the ABS control. Overbraking of the  
rear axle is avoided and the vehicle remains stable during braking.  
Electromechanical brake servo  
The 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 . In the event of a braking intervention by a driver assist system, e.g. when ACC is regulating  
or during emergency braking, the brake pedal can move automatically.  
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 being held by the brake pedal. The brake servo function is restricted in  
this case.  
Secure the stationary vehicle against rolling away (→ Parking).  
WARNING  
Driving without the brake servo or with restricted brake servo function can considerably increase the braking  
distance and cause accidents and serious injuries.  
Never switch the engine or ignition off while the vehicle is in motion.  
If the brake servo does not function or the vehicle is being towed, the brake pedal will have to be depressed more  
forcefully as the braking distance will be increased due to the lack of assistance for the brake system.  
Keep the footwell under the pedals clear so that the brake pedal can move freely.  
WARNING  
The effectiveness of systems can be adversely affected if components and systems are retrofitted, e.g. by body  
builders. On vehicles with add-ons or modifications, the correct operation of system can then be impaired or  
adjusted.  
Have the second stage manufacturer confirm that the systems are functioning properly.  
Switching the TCS on and off  
Driving situations  
The traction control system (TCS  
) can be switched off in situations where insufficient traction is achieved:  
When driving in deep snow or on loose surfaces.  
When rocking the vehicle backwards and forwards to free it from mud.  
When the driving situation no longer exists, the TCS should be switched back on fully.  
Switching the TCS on and off  
1. Open the vehicle settings in the Infotainment system (→ Vehicle settings menu).  
2. Open the brake settings.  
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