Table of Contents > Parking > Brake assistance systems

VW Passat B8 Owner's Manual ➜ Brake assistance systems

parking exit attendant  
Parking Exit Assist works with radar sensors mounted on the  
— Switch on the ignition.  
— If necessary, switch on the park exit assistant.  
— Observe the acoustic signals and the menus  
messages displayed on the instrument panel display. Colored  
segments show the area in question behind the vehicle on the  
infotainment system display ÿ fig. 159.  
If the parking aid is deactivated, no warnings can be issued  
to the driver. The parking exit assistant will also be temporarily  
switched off.  
Fig. 158 Schematic representation of the parking exit  
assistant: monitored area around the vehicle that is  
being vacated.  
The intelligent technology of parking systems cannot  
overcome the limits imposed by physical laws and only works  
within the limits of the systems. As a consequence, accidents,  
serious injuries and damage to the vehicle can occur.  
Parking Exit Assist monitors cross-direction traffic when  
reversing out of a parking space or when manoeuvring.  
· The parking system cannot replace the driver's attention.  
Brake assistance systems  
Information regarding brake assist systems  
The vehicle is equipped with brake assist systems. These systems  
can help the driver in critical driving or braking situations. The  
driver is responsible for driving safely ÿ p. 202.  
Fig. 159 On the infotainment system screen: display of  
the park exit assistant.  
Please also note the information and warnings valid for all  
parking assistants on p. 187.  
Driving with brake assist systems  
Brake assist systems work with the engine running. No  
special condition is necessary. Always leave the footrest area  
connect and disconnect  
free under the pedals!  
— In the Assistants menu of the instrument panel  
ÿ p. 3. 4.  
When the brake assist systems are regulating, the brake pedal  
OR: Depending on the equipment, with the driver assistance  
may move or noise may be produced. Still, keep braking hard  
systems button ÿ p. 32.  
enough. Keep the necessary pressure on the brake pedal  
constant. If necessary, control the path of the vehicle while  
OR: Depending on the equipment, in the infotainment system  
applying the brake pedal.  
3 G 0 0 1 2 7 6 0 A H  
settings ÿ p. 36.  
parking exit attendant  
Information on brake assist systems  
Electronic differential lock (EDS and XDS)  
The EDS automatically brakes the slipping wheels and  
transfers the drive power to the other drive wheels.  
If you suspect any malfunction, read and take into account the  
following indications.  
So that the brake does not get excessively hot, the EDS is  
automatically switched off in the event of extreme stress. The  
— ESC and ASR can only work correctly if all four wheels are  
equipped with the same type of tyres. If the rolling  
circumference of the tires is not the same on all tires, engine  
power may be unexpectedly reduced.  
EDS switches back on automatically as soon as the brake has  
cooled down.  
XDS improves traction to keep the vehicle in its lane.  
multi collision brake  
— If there is a fault in the ABS, the ESC, ASR and EDS also stop  
In the event of a collision, Multi-Collision Braking can help  
the driver, through automatically triggered braking, to reduce the  
risk of skidding and other collisions occurring during the accident.  
Electronic Stabilization Program (ESC)  
ESC helps to reduce the risk of skidding and improve stability  
in certain driving situations ÿ .  
The multi-collision brake only works in collisions that have  
been detected as such by the airbag control unit.  
Depending on the equipment, the ESC can be switched on  
in a sport mode or completely switched off ÿ p. 203.  
The vehicle brakes automatically as long as the necessary  
systems are not damaged in the collision and are still operational.  
Acceleration Anti-Skid Regulation (ASR)  
ASR reduces the driving force on the slipping wheels and  
adapts this force to the road conditions ÿ p. 204. ASR makes  
starting, accelerating and climbing hills easier.  
Automatic braking in the event of a collision does not take place  
in the following cases:  
— If the driver steps on the accelerator pedal.  
Depending on the equipment, the ASR can be deactivated ÿ  
p. 203.  
— If the braking pressure exerted on the brake pedal is greater  
than that applied by the system.  
Anti-lock Braking System (ABS)  
Electromechanical brake booster (eBKV)  
ABS can prevent wheel lockup under braking until shortly before  
the vehicle comes to a stop and helps the driver maintain control  
With the ignition switched on, the electromechanical brake  
booster supports foot force by increasing the pressure the driver  
over the vehicle and steering ÿ p. 204.  
exerts on the brake pedal ÿ . When a driver assistance system  
intervenes on the brakes, e.g. For example, when regulating  
ACC, or during emergency braking, the brake pedal cannot move  
Brake Assist (BAS)  
Brake Assist can help reduce stopping distance. Brake Assist  
increases the pressure exerted by the driver when pressing the  
After switching off the ignition, the assistance of the brake  
brake pedal quickly in emergency situations.  
booster is gradually reduced. If you continue to hold the vehicle  
with the brake pedal, messages are shown on the instrument  
panel display. In this case, the function of the brake booster is  
By reducing the pressure on the brake pedal, the brake assist  
switches off the brake booster.  
Once stopped, immobilize the vehicle to prevent it from rolling ÿ  
p. 184.  
Obstacle avoidance assistance system in emergency  
The Obstacle Avoidance Assist system intervenes in emergency  
situations if Front Assist detects the danger of a collision. A severe  
Front Assist warning is displayed.  
The intelligent technology of brake assist systems cannot  
overcome the limits imposed by the laws of physics and only  
works within the limits of the systems. Driving at high speed on  
icy, slippery or wet roads can cause loss of control of the vehicle.  
If the driver changes lanes in an evasive manoeuvre, ESC  
brakes certain wheels and dynamically helps to avoid the  
obstacle. The vehicle is stabilized in that lane.  
park and maneuver  
vehicle and the driver and passengers suffer serious  
If you are driving without a brake booster or with limited  
· Always adapt your speed and driving style to the  
visibility, weather, road and traffic conditions. Do  
not let the increased safety provided by brake assist  
systems (ABS, BAS, EDS, ASR and ESC) induce  
you to take risks that compromise safety.  
brake booster function, the stopping distance may be  
greatly increased and serious accidents and injuries  
may result.  
· Never turn off the engine or switch off the ignition  
when the vehicle is moving.  
· If the brake booster does not work or the vehicle is  
· Brake assistance systems cannot exceed the limits  
imposed by physical laws. Slippery and wet roads  
are still very dangerous even if the vehicle is  
equipped with ESC and other systems.  
towed, you will need to apply more force on the  
brake pedal, as the stopping distance increases  
due to the lack of assistance from the brake  
· Always leave the area under the pedals free so  
that the brake pedal can move freely.  
· Driving at high speed on a wet road can cause the  
wheels to lose contact with the road and produce  
"aquapla ning". If the vehicle loses contact with the  
road, it cannot be braked, steered or controlled.  
Connect and disconnect the ASR, the  
ESC or the ESC Sport  
· Brake assist systems cannot prevent an accident  
if, eg. For example, you are driving too close to  
other vehicles or too fast for the situation at hand.  
Disconnect and connect the ASR  
The ASR can be disengaged in situations where  
sufficient traction is not achieved:  
· Although the brake assist systems are very effective  
and help the driver to control the vehicle in difficult  
driving situations, it must not be forgotten that  
— When driving in deep snow or rough terrain  
stability depends on the adherence of the tyres.  
— To "unblock" the vehicle if it gets stuck.  
· When accelerating on a slippery road, e.g. eg  
because of ice or snow, do so with caution. Even  
if the vehicle has a brake assist system, the  
wheels can skid and this can cause loss of control  
ASR can be activated and deactivated in the vehicle  
settings of the infotainment system ÿ p. 36.  
The control indicator lights up yellow.  
of the vehicle.  
Switching ESC on and off in the “Offroad” driving  
If the “Offroad” driving profile is available and selected ÿ  
p. 156, ESC and ASR can be switched off in the  
infotainment system.  
The effectiveness of the ESC can be considerably  
reduced if other components or systems that affect  
driving dynamics have not been properly maintained  
The control indicator lights up yellow.  
or are not working properly. This also affects, among  
others, the brakes, tires and other mentioned systems.  
Activating and deactivating ESC  
Sport The ESC Sport function intervenes a little later  
than the normal ESC to stabilize the vehicle.  
· Always keep in mind that the reforms and  
modifications made to the vehicle may influence  
the operation of the braking assistance systems.  
Depending on the equipment, ESC Sport can be  
switched on and off in the infotainment system.  
· Modifications made to the suspension or the use of  
unauthorized wheel and tire combinations may  
The control indicator lights up yellow as the ASR is  
switched off.  
affect the operation of the brake assist systems and  
reduce their effectiveness.  
3 G 0 0 1 2 7 6 0 A H  
When the ESC is switched off, the danger of the  
The use of suitable tires favors  
vehicle skidding is much higher than when it is switched off!  
ce the effectiveness of the ESC.  
Brake assistance systems  
do is connected! Especially at high speed,  
ESC has been manually disconnected  
inexperienced drivers may find it difficult to control the  
vehicle. This can lead to accidents and serious injuries!  
The control indicator lights up yellow.  
ASR has been manually disconnected  
Therefore , Volkswagen recommends switching off the  
The control indicator lights up yellow.  
ESC only under the following conditions:  
— If you are driving on a closed or racing circuit.  
ESC Sport Connected  
If you have experience in sports driving, you go in  
The control indicator lights up yellow.  
· Do not take any security risk and take into account the  
The ESC is disconnected due to system causes.  
limits imposed by physical laws.  
The control indicator lights up yellow.  
— Switch the ignition off and on again.  
— If necessary, take a short drive at 15-20 km/h  
(9-12 mph).  
Problems and solutions  
— If the control indicator is still on, go to  
to a specialized workshop.  
Electromechanical brake booster does not work  
Do not continue the march!  
Brake assist systems make noise  
The warning lamp lights up red.  
If necessary , the message Servobrake out of service  
When the described brake assist systems intervene,  
noises may be heard.  
is displayed. Press the brake pedal hard because  
stopping distance will increase due to lack of assistance  
from the brake booster.  
— Immediately request the help of specialized personnel.  
· If the brake system warning light comes on together  
with the ABS control light, the ABS control function  
may not work and therefore the rear wheels may  
lock relatively quickly when braking.  
There is a fault in the electromechanical servo brake.  
This can cause loss of control of the vehicle! If possible,  
reduce speed and drive slowly and carefully to the  
The control indicator lights up yellow.  
nearest specialist workshop and have the brake  
The message Servo brake limited is displayed for a  
few seconds.  
system checked.  
Pressing the brake pedal can cause vibrations. You have  
to press the brake pedal harder because the braking  
During this journey, avoid sudden braking and any  
sudden maneuver.  
distance increases due to the reduction of the brake  
booster assistance.  
· If the ABS control light does not go out or comes on  
— Visit a specialized workshop.  
while driving, it means that the ABS is not working  
properly. The vehicle can only be stopped with normal  
ABS does not work correctly or does not work at all  
brakes (without ABS). In this case the protective  
function of ABS will not be available. Go to a specialized  
workshop as soon as possible.  
The control indicator lights up yellow.  
— Visit a specialized workshop. The vehicle's brakes  
continue to work without ABS.  
ASR is regulating to prevent wheel slip Control  
indicator flashes yellow.  
The ESC is regulating to reduce the risk of  
skidding and improve stability . The control lamp  
flashes yellow.  
park and maneuver  

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