Page 159 of 491

158 Controls in detailControl systemStandard display menu
You can select the functions in the stan-
dard display menu with buttonk
orj.
The following functions are available:Display digital speedometer
Press buttonj twice.
The current vehicle speed is shown in
the multifunction display.
AUDIO menu
The functions in the
Audio
menu operate
the audio equipment which you currently
have turned on.
If no audio equipment is currently turned
on, the message
AUDIO off
is shown in the
display.
The following functions are available:Select radio station
Turn on the radio. Refer to separate op-
erating instructions.
Press buttonè orÿ repeatedly
until you see the currently tuned sta-
tion in the display.
1Waveband setting
2Station frequency
Press buttonk orj repeatedly
until the desired station is found.
iThe headings used in the menus table
are designed to facilitate navigation
within the system and are not neces-
sarily identical to those shown in the
control system displays.
The first function displayed in each
menu will automatically show you
which part of the system you are in.
Function
Page
Call up digital speedometer
158
Call up maintenance display
339
Check tire pressure*
318
Check engine oil level
301
Function
Page
Select radio station
158
Select satellite radio station*
159
Operate CD player
159
Page 191 of 491

190 Controls in detailAutomatic transmissionStopping
When you stop briefly, e.g. at traffic lights:
Leave the transmission in gear.
Hold the vehicle with the brake.
When you stop longer with the engine
idling or on an uphill gradient:
Move the gear selector lever to
positionP.
Set the parking brake.Maneuvering
When you maneuver in tight areas,
e.g. when pulling into a parking space:
Control the vehicle speed by gradually
releasing the brakes.
Accelerate gently.
Never abruptly step on the accelerator.
Working on the vehicleEmergency operation
(Limp Home Mode)
If vehicle acceleration worsens or the
transmission no longer shifts, the trans-
mission is most likely operating in limp
home (emergency operation) mode. In this
mode only second gear and reverse gear
can be activated.
Stop the vehicle.
Move gear selector lever toP.
Turn off the engine.
Wait at least ten seconds before
restarting.
Restart the engine.
Move gear selector lever to positionD
(for second gear) orR.
Have the transmission checked at an
authorized Mercedes-Benz Center as
soon as possible.
Warning!
G
When working on the vehicle, set the
parking brake and move gear selector lever
to positionP. Otherwise the vehicle could
roll away.
Page 208 of 491

207 Controls in detail
Dual-zone automatic climate control
Residual heat and ventilation*
(available on climate control panel de-sign A only)
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.
Activating
Turn the SmartKey in the starter switch
to position0or1, or remove it from
the starter switch.
Press buttonT (
page 198).
The indicator lamp on button comes
on.Deactivating
Press buttonT (
page 198).
The indicator lamp on button goes out.
The residual heat is automatically turned
off:
when the ignition is switched on
after about 30 minutes
if the battery voltage drops
!If the air conditioning cannot be turned
on again, this indicates that the air con-
ditioning is losing refrigerant. The com-
pressor has turned itself off.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Center.
iHow long the system will provide heat-
ing depends on the coolant tempera-
ture and the temperature set by the
operator. The blower will run at speed
setting 1 regardless of the air distribu-
tion control setting.
Page 220 of 491

219 Controls in detail
4-zone automatic climate control*
Residual heat and ventilation (available
on 4-zone automatic climate control panel design A only)
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.
Activating
Turn the SmartKey in the starter switch
to position0 or1, or remove it from
the starter switch.
Press buttonT(
page 210).
REST in the display comes on.
Deactivating
Press buttonT(
page 210).
REST in the display goes out.
The residual heat is automatically turned
off
when the ignition is switched on
after about 30 minutes
if the battery voltage drops
Rear air conditioning
1Left rear center air vent, adjustable
2Right rear center air vent, adjustable
3Thumbwheel for air volume control for
right rear center air vent
4Temperature rocker switch, right
5Display
6Temperature rocker switch, left
7Thumbwheel for air volume control for
left rear center air vent
!If the air conditioning cannot be turned
on again, this indicates that the air con-
ditioning is losing refrigerant. The com-
pressor has turned itself off.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Center.
iHow long the system will provide heat-
ing depends on the coolant tempera-
ture and the temperature set by the
operator. The blower will run at speed
setting 1 regardless of the air distribu-
tion control setting.
Page 269 of 491

268 Controls in detailUseful featuresFloormats
1Retainer pin
2Eyelet
Removing
Pull floormat off of retainer pins1.
Remove the floormat.
Installing
Lay down the floormat.
Press the floormat eyelets2 onto re-
tainer pins1.
Telephone*
Radio transmitters, such as a portable tele-
phone or a citizens band unit, should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
The external antenna must be approved by
Mercedes-Benz. Please contact an autho-
rized Mercedes-Benz Center for informa-
tion on the installation of an approved
external antenna. Refer to the radio trans-
mitter operation instructions regarding use
of an external antenna.
iTo install or remove the floormat more
easily, move the driver’s seat or front
passenger seat as far to the rear as
possible (
page 39).
Warning!
G
Whenever you are using floormats, make
sure there is enough clearance and that the
floormats are securely fastened.
Floormats should always be securely fas-
tened using eyelets2 and retainer pins1.
Before driving off, check that the floormats
are securely in place and adjust them if nec-
essary. A loose floormat could slip and
hinder proper functioning of the pedals.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and / or serious
personal injury.
Page 288 of 491

287 Operation
Driving instructions
To help prevent brake disk corrosion after
driving on wet road surfaces (particularly
salted roads), it is advisable to brake the
vehicle with considerable force prior to
parking. The heat generated serves to dry
the brakes.
If your brake system is normally only sub-
jected to moderate loads, you should occa-
sionally test the effectiveness of the
brakes by applying above-normal braking
pressure at higher speeds. This will also
enhance the grip of the brake pads. If the parking brake is released and the
brake warning lamp in the instrument clus-
ter stays on, there is a malfunction in the
SBC brake system (
page 92) or the
brake fluid level in the reservoir is too low.
Brake pad wear or a leak in the system may
be the reason for low brake fluid in the res-
ervoir.
Have the brake system inspected by quali-
fied technicians immediately. Contact an
authorized Mercedes-Benz Center.
All checks and service work on the brake
system should be carried out by qualified
technicians only. Contact an authorized
Mercedes-Benz Center.
Only install brake pads and brake fluid
recommended by Mercedes-Benz.
After hard braking, it is advisable to drive
on for some time, rather than immediately
parking, so that the air stream will cool
down the brakes faster.
!Be very careful not to endanger other
road users when you apply the brakes.
Refer to the description of the Brake
Assist System (BAS) (
page 89).
Warning!
G
If other than recommended brake pads are
installed, or other than recommended brake
fluid is used, the braking properties of the
vehicle can be degraded to an extent that
safe braking is substantially impaired. This
could result in an accident.
Be certain to read and observe the warning
notices on brake pad replacement
(page 375).!When driving down long and steep
grades, relieve the load on the brakes
by shifting into a lower gear to use the
engine’s braking power. This helps pre-
vent overheating of the brakes and re-
duces brake pad wear.
Page 298 of 491
297 Operation
At the gas station
Replace the fuel cap by turning it to the
right.
You will hear when the fuel cap is tight-
ened.
Close the fuel filler flap.
Check regularly and before a long trip
1Windshield washer and headlamp
cleaning system*
2Brake fluid
3Coolant level
iLeaving the engine running and the fuel
cap open can cause the yellow fuel
tank reserve warning lamp to flash and
the? malfunction indicator lamp
(USA only) or the ± malfunction in-
dicator lamp (Canada only) to illumi-
nate.
For more information, see “Practical
hints” (
page 357).
iOnly use premium unleaded gasoline
with a minimum Posted Octane Rating
of 91 (average of 96 RON / 86 MON).
Information on gasoline quality can
normally be found on the fuel pump.
More information on gasoline can be
found in the Factory Approved Service
Products pamphlet.
iOpening the hood, see (
page 299).
Page 299 of 491

298 OperationAt the gas stationWindshield washer system and
headlamp cleaning system*
For information on refilling the reservoir,
see “Windshield washer system and head-
lamp cleaning system*” (
page 306).
Brake fluid
For information on brake fluid, see “Fuels,
coolants, lubricants, etc.” (page 453).Coolant
For normal replenishing, use water (pota-
ble water quality). For more information on
coolant, see “Coolant level” (
page 303)
and see “Fuels, coolants, lubricants etc.”
(
page 450).
Engine oil level
For more information on engine oil level,
see (page 300).Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (
page 410).
For more information, see “Exterior lamp
switch” (
page 141).
Tire inflation pressure
For more information on tire inflation pres-
sure, see “Checking tire inflation pressure”
(
page 318).
!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 immediately. Noti-
fy an authorized Mercedes-Benz Center
immediately. Do not add brake fluid as
this will not solve the problem. For
more information, see “Practical hints”
(page 354).