Page 180 of 376

180 Controls in detailDriving systems
Activating
Press switch1.
The indicator lamp on the switch lights
up. A loudspeaker symbol appears in
the speedometer display (
page 174).
Deactivating
Press switch1.
The indicator lamp on the switch goes
out. No loudspeaker symbol appears in
the speedometer display.Driving with Distronic
This section describes a number of driving
situations where special precaution is re-
quired on the part of the driver. Be pre-
pared to brake in such situations. This will
deactivate the Distronic system.
Warning!
G
If the DTR warning lamp (red)
E
in the
speedometer dial lights up while driving
and/or an intermittent warning sounds, im-
mediate attention on the part of the driver is
required.
As required by the traffic situation, apply the
brakes and navigate around a possible ob-
stacle. However, do not drive by relying on
the distance warning function, as this will re-
sult in an emergency braking application.
Especially depending on road surface condi-
tions and driver reaction, this will not always
enable you to avoid a collision.
iComplex driving situations are not al-
ways fully recognized by Distronic. This
could result in wrong or missing dis-
tance warnings.
Page 188 of 376

188 Controls in detailDriving systemsFront area warning indicator1Left side of the vehicle
2Right side of the vehicle
Each warning indicator is divided into six
yellow and two red segments for either
side of the vehicle. The Parktronic system
is ready when the border around the indi-
cator is illuminated.The position of the gear selector lever de-
termines which warning indicators will be
activated.
As your vehicle approaches an object, one
or more segments will light up, depending
on the distance. When the eighth segment
lights, you have reached the minimum dis-
tance.
Front area: An intermittent acoustic
warning will sound as the seventh seg-
ment lights up and a constant acoustic
warning lasting a maximum of three
seconds will sound for the eighth seg-
ment.
Rear area: An intermittent acoustic
warning will sound when the first seg-
ment lights up. This signal quickens
with each additional segment lit. When
the eighth segment illuminates, the
acoustic warning becomes a constant
signal. The signal is canceled when the
selector lever is placed in positionD
orP.
Selector lever
position
Warning indicator
D
Front area activated
R or N
Rear area activated
P
Neither activated
Page 189 of 376

189 Controls in detail
Driving systems
Switching the Parktronic system
on/off
You can switch off the Parktronic system
manually.
The Parktronic switch is located in the low-
er section of the center console.
1Parktronic on/off switch
2Indicator lamp
Switching off the Parktronic system
Press switch1.
The indicator lamp2 comes on.Switching on the Parktronic system
Press switch1 again.
The indicator lamp2 goes out.
Parktronic malfunction
There is a malfunction in the Parktronic
system if the red segments of the Park-
tronic warning indicator light up and a
warning sounds. The Parktronic system
will switch itself off after 30 seconds and
the indicator lamp on the Parktronic switch
lights up.
Have the Parktronic system checked
by an authorized Mercedes-Benz Cen-
ter as soon as possible.If only the red segments of the Parktronic
warning indicator light up and no warning
sounds, then the sensors of the Parktronic
system are dirty or malfunctioning. Mal-
function may also be caused by interfer-
ence from other radio or ultrasonic signals.
The Parktronic system will switch itself off
after 20 seconds.
Clean Parktronic system sensors
(page 246).
Switch on the ignition.
or
Check Parktronic operation at another
location to rule out interference from
outside radio or ultrasonic signals.
Page 198 of 376

198 Controls in detailUseful featuresSwitching on
Make sure that the ignition is switched
on.
All the lamps in the instrument cluster
should light up.
Turn lever in the direction of arrow1.
The steering wheel is heated. Indicator
lamp2 lights up.
Switching off
Turn lever in the direction of arrow3.
The steering wheel heating is turned
off. Indicator lamp2 goes out.
Easy-Pack load assist in the trunk
To facilitate trunk loading after opening the
lid, use the Easy-Pack feature to raise the
retracted hardtop from its storage position
in the trunk.
1Retracted hardtop
2Luggage cover
3Easy-Pack buttonRaising the hardtop
The hardtop can only be raised when the
luggage cover is closed and the trunk lid is
completely opened.
Press button3.
The hardtop rises a short distance.
Button3 lights up brightly. You can
now open the luggage cover.
iThe steering wheel heating does not
turn off automatically.
Warning!
G
To prevent injuries, make sure that there is
no possibility of body parts getting caught in
moving parts. If potential danger exists,
press the switch again. This will immediately
stop the movement of the hardtop.
Page 250 of 376
250 Practical hintsWhat to do if …
What to do if …Lamps in instrument clusterProblem
Possible cause
Suggested solution
v
The yellow ABS/ESP warning
lamp lights up while driving.
ESP is deactivated.
Risk of accident!
Adapt your speed and driving to the prevail-
ing road conditions.
Turn the ESP back on (
page 72).
If the ESP cannot be turned back on,
have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
v
The yellow ABS/ESP warning
lamp flashes while driving.
The ESP, ABS or traction control has come
into operation because of detected traction
loss in at least one tire. Distronic* is deacti-
vated.
During take-off apply as little throttle
as possible.
While driving ease up on the accelera-
tor.
Adapt your speed and driving to the
prevailing road and weather condi-
tions.
Do not deactivate the ESP (excep-
tions: (
page 71)).
Failure to follow these instructions in-
creases the risk of accidents.
Page 251 of 376

251 Practical hints
What to do if …
Problem
Possible cause
Suggested solution
-
The yellow ABS malfunction indi-
cator lamp comes on while driv-
ing.
The ABS has detected a malfunction and has
switched off. The BAS and ESP are also
switched off (see messages in display).
The SBC brake system is still functioning nor-
mally but without ABS available.
If the ABS control unit is malfunctioning, oth-
er systems such as Parktronic*, Distronic*,
or the automatic transmission may also be
malfunctioning.
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
Read and observe messages in the
display (
page 257).
E
The red DTR indicator lamp lights
up while driving.
You are too close to the vehicle in front of you
to maintain selected speed.
Apply the brakes immediately to in-
crease the following distance.
E
The red DTR indicator lamp
comes on while driving and you
hear a warning sound.
You are gaining too rapidly on the vehicle
ahead of you.
The distance warning system has recog-
nized a stationary obstacle on your prob-
able line of travel.
Apply the brakes immediately.
Carefully observe the traffic situation.
You may need to brake or maneuver
to avoid hitting an obstacle.
E
The white DTR indicator lamp
lights up while driving.
The Distronic* distance sensor has recog-
nized a vehicle in front of you.
Page 252 of 376
252 Practical hintsWhat to do if …Problem
Possible cause
Suggested solution
1
The red SRS indicator lamp lights
up while driving.
There is a malfunction in the restraint sys-
tems. The airbags or emergency tensioning
device (ETD) could deploy unexpectedly or
fail to activate in an accident.
Drive with added caution to the near-
est authorized
Mercedes-Benz Center.
Warning!
G
In the event that a malfunction of the SRS is
indicated as outlined above, the SRS may
not be operational. For your safety, we
strongly recommend that you visit an
authorized Mercedes-Benz Center immedi-
ately to have the system checked; otherwise
the SRS may not be activated when needed
in an accident, which could result in serious
or fatal injury, or it might deploy
unexpectedly and unnecessarily which
could also result in an accident and/or
injury to you or to others.
Page 253 of 376

253 Practical hints
What to do if …
Problem
Possible cause
Suggested solution
3
(Canada only)
;
except Canada)
The red brake warning lamp
lights up while driving and you
hear a warning sound.
The red brake warning lamp
lights up while driving
You are driving with the parking brake set,
or
there is a malfunction in the SBC brake system.
There is insufficient brake fluid in the reservoir.
Release the parking brake
(page 41).
Read and observe messages in the
display (
page 257).
Risk of accident! Carefully stop the
vehicle and notify an authorized
Mercedes-Benz Center. Do not add
brake fluid! This will not solve the
problem.
Warning!
G
Driving with the brake warning lamp illumi-
nated can result in an accident. Have your
brake system checked immediately if the
brake warning lamp stays on. Don’t add
brake fluid before checking the brake sys-
tem.
Overfilling the brake fluid reservoir can re-
sult in spilling brake fluid on hot engine
parts and the brake fluid catching fire. You
can be seriously burned.
!If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks.