Get Brake support systems Guide for Volkswagen Transporter Van Seventh Generation (2021-2025)

Functional restrictions may occur when the sliding door or boot lid is

open.

Emergency braking

An automatic braking intervention may be performed if the driver does not react to a warning (→ Automatic braking

intervention). Observe the text messages in the instrument cluster.

Automatic braking intervention of Rear Traffic Alert.

Press the brake to hold the vehicle stationary.

Fault

If there is a fault with Rear Traffic Alert, e.g. caused by dirty sensors or a system error, the driver is informed by a text

message and the symbol in the instrument cluster.

Things to note for trailer towing

Rear Traffic Alert is deactivated if the factory-fitted towing bracket is electrically connected to a trailer. Observe the

text messages in the instrument cluster.

WARNING

The intelligent technology used in the parking systems cannot overcome the laws of physics, and functions only

within the system limits. Failure to observe this information can result in accidents, serious injuries and vehicle

damage.

● The parking system is not a substitute for the full concentration of the driver. Pay attention to the traffic situation

and the area around the vehicle.

● Always be aware of the vehicle’s surroundings as the Rear Traffic Alert may not be able to detect all approaching

objects, e.g. pedestrians or fast approaching objects.

● The Rear Traffic Alert will not always independently bring the vehicle to a complete stop.

Information on brake support systems

The brake support systems can assist the driver in critical driving or braking situations. The driver is responsible for

driving safety →

If a brake support system is performing a braking intervention, continue to brake with the necessary force, and if

necessary steer the vehicle.

WARNING

The intelligent technology used in brake support systems cannot overcome the laws of physics, and functions only

within the limits of the systems. 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.

● Ensure that your speed and driving style are always appropriate for the current visibility, weather and road/traffic

conditions. Never take any safety risks.

● Brake support systems cannot prevent an accident if you are driving too close to the vehicle in front.

● Always use suitable tyres. The driving stability depends on the tyre grip.

● Keep the footwell under the pedals clear so that the brake pedal can move freely.

—The ESC, ABS and TCS can function properly only if all four wheels are fitted with the same tyres.

—If there is a fault in the ABS, the ESC, TCS and EDL will also stop working.

The status of the brake functions is checked automatically when the ignition is switched on. The indicator lamps light

up briefly and then go out again. If an indicator lamp remains lit up, there is a fault (→ Brake support systems). Go to

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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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3. Switch the TCS on or off in the selection.

TCS switched off manually. The indicator lamp lights up yellow.

Troubleshooting

Electromechanical brake servo failure

Do not drive on!

The indicator lamp lights up red.

A text message may also be displayed. Press the brake pedal firmly as the braking distance will increase due to the

lack of brake servo.

1. Seek expert assistance immediately.

Electromechanical brake servo fault

Indicator lamp lights up yellow.

A text message is displayed for a few seconds.

The brake pedal may pulsate when pressed. The brake pedal must be pressed more firmly as the braking distance will

increase due to the reduced brake servo.

1. Go to a correspondingly qualified workshop.

ABS failure or fault

Indicator lamp lights up yellow.

1. Go to a correspondingly qualified workshop.

The vehicle can be braked without the anti-lock brake system.

ESC fault

Indicator lamp lights up yellow.ESC

has been switched off.

1. Switch the ignition on and off.

2. Drive a short distance at a speed of 15–20 km/h(9–12 mph) if necessary.

3. If the indicator lamp continues to light up, go to a suitably qualified workshop.

Noises from the brake support systems

The brake pedal may move or noises may occur while the brake support systems are regulating.

WARNING

The control function of the ABS may have failed if the brake warning lamp lights up together with the ABS

indicator lamp . This can cause the rear wheels to lock quickly when you brake. Locked rear wheels can lead to a

loss of control of the vehicle.

● If possible, reduce the vehicle speed and drive carefully at low speed to the nearest correspondingly qualified

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Brake support systems for Your Volkswagen Transporter Van Seventh Generation (2021-2025)

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