the brake system checked at a qualified spe-
cialist workshop.
Observe information regarding indicator and
warning lamps (Y page 193) as well as display
messages (Y page 170).
ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety and
offers increased braking comfort. In addition to
the braking function, ADAPTIVE BRAKE also has
the HOLD function (Y page 138) and hill start
assist (Y page 111).
STEER CONTROL
General information
STEER CONTROL helps you by transmitting a
noticeable steering force to the steering wheel
in the direction required for vehicle stabilization.
This steering assistance is provided in particular
if:
R
both right wheels or both left wheels are on a
wet or slippery road surface when you brake
R
the vehicle begins to skid
Important safety notes
i
Observe the "Important safety notes" sec-
tion (Y page 58).
No steering assistance is provided from STEER
CONTROL, if:
R
ESP
®
is malfunctioning
R
the steering is malfunctioning
If ESP
®
is malfunctioning, you will be assisted
further by the electrical power steering.
Recuperative Brake System
G
WARNING
In the event of malfunctions in the Recupera-
tive Brake System, the following may occur:
R
the braking performance of the electric
motor may be either reduced or not effec-
tive
R
brake pedal resistance may be lower than
usual
R
pedal travel may be longer than usual
If you do not make an additional effort to apply
the brake yourself, the braking effect may not
be sufficient. There is a risk of an accident.
In the event of this malfunction, continue to
depress the brake pedal. The brake system is
still fully functional.
Observe the important safety notes on driving
safety systems (Y page 58).
The Recuperative Brake System converts the
kinetic energy when braking into electrical
energy. The electric motor is used as an alter-
nator during braking. This electrical energy is
then stored in the high-voltage battery.
You can find information about manually adjust-
able recuperation under "Steering wheel paddle
shifters" (Y page 115).
If the warning light in the instrument cluster is lit
up, there is a motor malfunction or a brake mal-
function.
Observe information regarding indicator and
warning lamps (Y page 192) as well as display
messages (Y page 168).
Protection against theft
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
X
To activate with the SmartKey: remove the
SmartKey from the ignition lock.
X
To activate with KEYLESS-GO start-func-
tion or KEYLESS-GO: switch the ignition off
and open the driver's door.
X
To deactivate: switch on the ignition.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Anyone
can start the drive system if a valid SmartKey
has been left inside the vehicle.
i
The immobilizer is always deactivated when
you start the drive system.
64
Protection against theft
Safety
English 
