250 Driving instructions
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cluster displayPractical hints Car care Index
Parking Important!
It is advisable to set the parking brake whenever
parking or leaving the vehicle. In addition, move
selector lever to position “P”.
When parking on hills, always set the parking brake.
Wa r n i n g !
To reduce the risk of personal injury as a result of
vehicle movement, before
turning off the engine
and leaving the vehicle, always:
1. Keep right foot on service brake pedal.
2. Firmly depress parking brake pedal.
3. Move the selector lever to position “P”.
4. Slowly release service brake pedal.
5. Turn front wheels towards the road curb.
6. Turn the electronic key to starter switch
position 0 and remove, or press start- / stop
button (vehicles with KEYLESS-GO).
7. Take the electronic key and the KEYLESS-GO-
card (vehicles with KEYLESS-GO) and lock
vehicle when leaving.
252 Driving instructions
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Specified tire pressures must be maintained. This
applies particularly if the tires are subjected to high
loads (e.g. high speeds, heavy loads, high ambient
temperatures).
Aq uaplaning
Depending on the depth of the water layer on the road,
aquaplaning may occur, even at low speeds and with
new tires. Reduce vehicle speed, avoid track grooves in
the road and apply brakes cautiously in the rain.Tire traction
The safe speed on a wet, snow covered or icy road is
always lower than on a dry road.
You should pay particular attention to the condition of
the road whenever the outside temperatures are close to
the freezing point.
We recommend M+S rated radial-ply tires for the winter
season for all four wheels to insure normal balanced
handling characteristics. On packed snow, they can
reduce your stopping distance as compared with
summer tires. Stopping distance, however, is still
considerably greater than when the road is not snow or
ice covered.
Wa r n i n g !
Do not drive with a flat tire. A flat tire affects the
ability to steer or brake the vehicle. You may lose
control of the vehicle. Continued driving with a flat
tire or driving at high speed with a flat tire will
cause excessive heat build-up and possibly a fire.
Wa r n i n g !
If ice has formed on the road, tire traction will be
substantially reduced. Under such weather
conditions, drive, steer and brake with extreme
caution.
254 Driving instructions
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Important!
Use of snow chains is not permissible with tire sizes
245 / 45 R18 or 275 / 40 R18.
Winter driving instructions
The most important rule for slippery or icy roads is to
drive sensibly and to avoid abrupt acceleration, braking
and steering maneuvers. Do not use the cruise control
system under such conditions.
When the vehicle is in danger of skidding, move
selector lever to position “N”. Try to keep the vehicle
under control by corrective steering action.
Road salts and chemicals can adversely affect braking
efficiency. Increased pedal force may become necessary
to produce the normal brake effect. We therefore
recommend depressing the brake pedal periodically
when traveling at length on salt-strewn roads. This can
bring road salt impaired braking efficiency back to
normal. A prerequisite is, however, that this be done
without endangering other drivers on the road.If the vehicle is parked after being driven on salt treated
roads, the braking efficiency should be tested as soon as
possible after driving is resumed while observing the
safety rules in the previous paragraph.
Wa r n i n g !
If the vehicle becomes stuck in snow, make sure
that snow is kept clear of the exhaust pipe and
from around the vehicle with engine running.
O t h e rw i s e , d e a d ly c a r b o n m o n ox i d e ( CO ) ga s e s m ay
enter vehicle interior resulting in unconsciousness
and death.To assure sufficient fresh air ventilation, open a
window slightly on the side of the vehicle not
facing the wind.
259 Driving systems
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data Instruments
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cluster displayPractical hints Car care Index 3Canceling
To cancel the cruise control, briefly push lever to
position 3.
When you step on the brake pedal or the vehicle
speed drops below approximately 19 mph
(30 km / h), for example when driving upgrade, the
cruise control will be canceled.
If the cruise control cancels by itself and remains
inoperative until the engine is restarted, have the
system checked at your authorized Mercedes-Benz
Center as soon as possible.4Resume
If the lever is briefly pushed to position 4 when
driving at a speed exceeding approximately 19 mph
(30 km / h), the vehicle resumes the speed which
was set prior to the cancellation of the cruise
control.
The selected speed is shown for approximately
5 seconds in the multifunction display, and the
corresponding speedometer segments from the
selected speed to the vehicle maximum speed are
illuminated.
The last memorized speed is canceled when the
electronic key in the starter switch is turned to
position 1 or 0.
Important!
Moving gear selector lever to position “N” switches the
cruise control off.
260 Driving systems
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Notes:
If the engine does not brake the vehicle sufficiently
while driving on a downgrade, the speed you set on the
cruise control may be exceeded. In this case the
automatic transmission shifts down (max. to 3rd gear)
to maintain the set cruise control speed by using the
engine’s braking power.
As soon as the grade eases, the automatic transmission
shifts up again dependent on the selector lever position.
Nevertheless, in some cases you may have to step on the
brake pedal to slow down. In this case the cruise control
is switched off.
Use the lever to resume the previously set speed.
The “CRUISE CONTROL - - -” message is displayed on
the multifunction display when any attempt is made to
store speeds below 19 mph (30 km / h) or when an
attempt is made to recall a speed when no speed has
been stored – the cruise control remains switched off.
See malfunction and warning messages on page 325 if
the cruise control has a malfunction.
Wa r n i n g !
Only use the cruise control if the traffic and
weather conditions make it advisable to travel at a
steady speed.• The use of cruise control can be dangerous on
winding roads or in heavy traffic because
conditions do not allow safe driving at a steady
speed.
• The use of cruise control can be dangerous on
slippery roads. Rapid changes in tire adhesion
can result in wheel spin and loss of control.The “Resume” function should only be operated if
the driver is fully aware of the previously set speed
and wishes to resume this particular preset speed.
261 Driving systems
Te ch n i c a l
data Instruments
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cluster displayPractical hints Car care Index Distronic (DTR)
(optional)
When activated the Distronic system increases driving
convenience, for example over long distances, as it
automatically maintains a speed set by the driver by
actively regulating the throttle setting. It also maintains
within certain limitations a preset distance to a vehicle
ahead.
With Distronic switched off, the multifunction display
continues to show the distance to the vehicle ahead, if
so selected, see page 275.
The distance warning function can be activated
separately, see page 272.
In Distronic mode, if the distance sensor detects a
slower moving vehicle directly ahead, your vehicle
speed will be reduced to the extent permitted by
reduced throttle and up to 20% of vehicle braking power,
so that you follow that vehicle at a preset distance, see
page 273.
Maximum range of detection is approximately 500 ft.
(150 m).Any given speed between 25 mph (Canada: 40 km/h)
and 110 mph (Canada: 180 km/h) can be maintained
with the Distronic by operating the control lever on the
steering column.
Wa r n i n g !
Distronic is a convenience system, its speed
adjustment reduction capability is intended to
make cruise control more effective and usable
when traffic speeds vary. It is not, however,
intended to nor does it replace the need for extreme
care. The responsibility for the vehicle speed and
the distance to the vehicle ahead, including most
importantly brake operation to assure safe stopping
distance, rests always with the driver.Distronic cannot take street and traffic conditions
into account.Wa r n i n g !
Distronic requires familiarity with its operational
characteristics. We strongly recommend that you
review the following information carefully before
operating the system.
265 Driving systems
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data Instruments
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cluster displayPractical hints Car care Index •For a more precise setting the speed can be
increased in increments of 1 mph (Canada: 1 km/h)
by briefly pulling the control lever in direction (4).
Caution!
If the driver’s foot is not fully removed from the
accelerator pedal, the message “DISTRONIC OVERRIDE”
is displayed while the Distronic control system is being
overridden and it will not regulate the preset vehicle
speed and following distance. The vehicle speed and
following distance will be determined only by the
accelerator pedal position.Invalid attempts to activate
The multifunction display will show “––– MPH” during
invalid attempts to activate Distronic. Distronic will not
activate in the following situations:
•below a speed of approx. 25 mph
(Canada: 40 km/h),
•while the electronic stability program (ESP) is
switched off – ESP warning lampv in
speedometer dial is illuminated, see page 112,
•by moving the distronic control lever in “RESUME”
direction (4) when no speed is stored in memory,
•during the initialization and self-test phase after the
engine is started – this can take up to 2 minutes,
•while depressing the service brake pedal,
•while the parking brake is set – check ;warning
lamp (Canada: !) in instrument cluster, see
page 112,
•with the gear selector lever in position “P”, “R”
or “N” – check gear range indicator display in
instrument cluster, see page 112.
See page 332 for malfunction and warning messages if
the Distronic is malfunctioning.
Wa r n i n g !
Distronic brakes (up to 20% of vehicle braking
power) the vehicle to restore the preset distance or
to maintain the speed. The brake pedal is
automatically applied as this happens.Keep driver’s foot area clear at all times, including
the area under the brake pedal. Objects stored in
this area may impair pedal movement which could
interfere with the braking ability of the Distronic
system.Do not place your foot under the brake pedal – your
foot could become caught.
266 Driving systems
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Deactivation of Distronic
Briefly move the distronic control lever in “OFF”
direction (3) – the stored speed remains in the memory
until the electronic key in the starter switch is turned to
position 1 or 0.
Distronic is also deactivated if:
•the service brake pedal is depressed,
•the parking brake is activated,
•the vehicle decelerates to less than approximately
25 mph (Canada: 40 km/h), e.g. while maintaining
the distance to the vehicle ahead,•the gear selector lever is moved to position “N”,
•the electronic stability program (ESP) is active,
•the electronic stability program (ESP) is switched off
manually.
Note:
A signal sounds and the message “DISTRONIC OFF”
appears for 5 seconds in the multifunction display
everytime Distronic is deactivated (except when moving
distronic control lever in “OFF” direction).
Wa r n i n g !
The Distronic switches off and releases the brakes
when the vehicle decelerates below the minimum
speed of 25 mph (Canada: 40 km/h) by operation of
the system. At that time, the driver must apply the
brakes in order to reduce vehicle speed further or
bring it to a stop.