Principle
The parking brake is used to prevent the vehicle from rolling when it is parked.
Safety information
Warning
An unsecured vehicle can begin to move and possibly roll away. There is a risk of accident.
Before exiting, secure the vehicle against rolling.
In order to ensure that the vehicle is secured against rolling away, follow the following:
Warning
Unattended children or animals in the vehicle can cause the vehicle to move and endanger themselves and traffic, for instance due to the following actions:
There is a risk of accidents or injuries. Do not leave children or animals unattended in the vehicle.
Take the vehicle key with you when exiting and lock the vehicle.
Overview
Parking brake
Setting
With a stationary vehicle
Pull the switch.
The LED lights up.
The indicator light in the instrument cluster illuminates red. The parking brake is set.
While driving
General information
To use as emergency brake while driving.
Pull the switch and hold it. The vehicle brakes hard while the switch is being pulled.
The indicator light in the instrument cluster illuminates red, a signal sounds, and the brake lights illuminate.
A Check Control message is displayed.
The parking brake is engaged when the vehicle is stationary.
With Emergency Stop Assistant
Pull the switch briefly to activate the emergency stop function.
Releasing
Releasing manually
1. Turn on drive readiness.
2. Press the switch while stepping on the brake pedal or selector lever position P is set.
The LED and indicator light turn off.
The parking brake is released.
Automatic release
The parking brake is released automatically when you drive away.
The LED and indicator light turn off.
Automatic Hold
Principle
Automatic Hold assists the driver by automatically setting and releasing the brake, such as when moving in stop-and-go traffic.
The vehicle is automatically held in place when it is stationary.
On uphill grades the system prevents the vehicle from rolling back when driving off.
General information
Under the following conditions, the parking brake is automatically engaged:
Safety information
Warning
An unsecured vehicle can begin to move and possibly roll away. There is a risk of accident.
Before exiting, secure the vehicle against rolling.
In order to ensure that the vehicle is secured against rolling away, follow the following:
Warning
Unattended children or animals in the vehicle can cause the vehicle to move and endanger themselves and traffic, for instance due to the following actions:
There is a risk of accidents or injuries. Do not leave children or animals unattended in the vehicle.
Take the vehicle key with you when exiting and lock the vehicle.
NOTICE
If the vehicle is stationary, Automatic Hold engages the parking brake and prevents the vehicle from rolling in a car wash. There is a risk of damage to property, among other potential damage. Deactivate Automatic Hold prior to entering the car wash.
Overview
Automatic Hold
Establishing operational readiness of Automatic Hold
1. Turn on drive readiness.
2. Press the button.
The LED lights up.
The indicator light lights up green.
Automatic Hold is functional.
After every vehicle restart, the last selected setting is active.
Automatic Hold holding the vehicle
Operational readiness is established and the driver's door is closed.
After the brake is applied, the vehicle is kept from rolling as soon as the indicator light illuminates green.
Driving off
Press the accelerator pedal to drive off.
The brake is released automatically and the indicator light of the parking brake is no longer illuminated.
Activating the parking brake automatically
The parking brake is automatically set if drive-ready state is switched off while the vehicle is being held by Automatic Hold or if the vehicle is exited.
The indicator light changes from green to red.
The parking brake is not set automatically, if the drive-ready state is switched off, while the vehicle is coasting to a halt. Automatic Hold is deactivated.
Switching operational readiness off
Press the button.
The LED goes out.
The indicator light goes out.
Automatic Hold is switched off.
If the vehicle is being held by Automatic Hold, press additionally on the brake pedal, when switching off.
Malfunction
If the parking brake fails or in case of a fault, secure the vehicle against rolling before exiting.
A Check Control message is displayed.
Secure the vehicle against rolling away, for instance with a wheel chock, after exiting the vehicle.
After a power interruption
To reestablish parking brake functionality after a power interruption:
1. Turn on standby state.
2. Pull the switch while stepping on the brake pedal or selector lever position P is set and then push.
This process may take a few seconds. Some mechanical sounds associated with this process are normal.
The indicator light is no longer illuminated as soon as the parking brake is ready for operation again.