If you deactivate ESP
®
:
R
ESP
®
no longer improves driving stability.
R
engine torque is no longer limited and the
drive wheels are able to spin.
The spinning of the wheels results in a cut-
ting action for better traction on loose sur-
faces.
R
traction control is still activated.
R
PRE-SAFE
®
is no longer available, nor is it
activated if you brake firmly and ESP
®
intervenes.
R
COLLISION PREVENTION ASSIST is no lon-
ger available; nor is it activated if you brake
firmly with assistance from ESP
®
.
R
ESP
®
still provides support when you
brake.
Off-road ESP
®
An ESP
®
system specifically suited to off-road
terrain is activated automatically once the off-
road program is activated (Y page 186).
Off-road ESP
®
intervenes with a delay if there
is oversteering or understeering, thus improv-
ing traction.
EBD (electronic brake force distribu-
tion)
General information
EBD monitors and controls the brake pres-
sure on the rear wheels to improve driving
stability while braking.
Important safety notes
i
Observe the "Important safety notes" sec-
tion for driving safety systems (Y page 64).
G
WARNING
If EBD has malfunctioned, the rear wheels can
still lock, e.g. under full braking. This increa-
ses the risk of skidding and an accident.
You should therefore adapt your driving style
to the different handling characteristics. Have
the brake system checked at a qualified spe-
cialist workshop.
Observe information regarding indicator and
warning lamps (Y page 254) as well as dis-
play messages (Y page 224).
ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety
and offers increased braking comfort. In addi-
tion to the braking function, ADAPTIVE BRAKE
also has the HOLD function (Y page 181) and
hill start assist (Y page 144). For further
information, see Driving tips (Y page 164).
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 partic-
ular if:
R
both right wheels or both left wheels are on
a wet or slippery road surface when you
brake.
R
the vehicle starts to skid.
Important safety notes
No steering support is provided from STEER
CONTROL, if:
R
ESP
®
is malfunctioning.
R
the lighting is faulty.
Power steering will, however, continue to
function.
Protection against theft
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
72
Protection against theft
Safety
English 
