2008 MERCEDES-BENZ CLK63AMG fuel

167 Controls in detail
Control system
Move the selection marker with
buttonæ orç to the

Convenience
submenu.
Press buttonj ork repeatedly
until the message
Easy-entry Func-
tion
appears in the multifunction
display.
The selection marker is on the current
setting.
Press buttonæ orç to switch
the easy-entry/exit feature
On or Off.
Trip computer menu
Use the trip computer menu to call up sta-
tistical data on your vehicle.
The following information is available:
Fuel consumption statistics since start
Press buttonÿ orè repeatedly
until the first function of the trip com-
puter menu appears in the multifunc-
tion display.
Press buttonj ork repeatedly
until the message
From Start appears
in the multifunction display.1Distance driven since start
2Time elapsed since start
3Average speed since start
4Average fuel consumption since start
FunctionPage
Fuel consumption statistics
since start167
Fuel consumption statistics
since last reset168
Resetting fuel consumption
statistics168
Distance to empty168
iAll statistics stored from the last engine
start will be reset approximately four hours after
the SmartKey in the starter switch is turned to
position0 or removed from the starter switch.
Resetting will not occur if you turn the SmartKey
back to position1 or2 within this time period.

168 Controls in detail
Control system
Fuel consumption since last reset
Press buttonÿ orè repeatedly
until the first function of the trip com-
puter menu appears in the
multifunction display.
Press buttonj ork repeatedly
until the message
From Reset appears
in the multifunction display.
1Distance driven since last reset
2Time elapsed since last reset
3Average speed since last reset
4Average fuel consumption since last
resetResetting fuel consumption statistics
Press buttonÿ orè repeatedly
until the first function of the trip com-
puter menu appears in the
multifunction display.
Press buttonj ork repeatedly
until the reading that you want to reset
appears in the multifunction display.
Press and hold the reset button in the
instrument cluster (
page 138) until
the value is reset to
0.Distance to empty
Switch on the ignition (page 40).
Press buttonÿ orè repeatedly
until the first function of the trip com-
puter menu appears in the
multifunction display.
Press buttonj ork repeatedly
until the message
Range: appears in
the multifunction display.
The calculated remaining driving range
based on the current fuel tank level
appears in the multifunction display. If
the remaining fuel in the tank is suffi-
ciently low, a fuel pump is shown in-
stead of the range.

183 Controls in detail
Automatic transmission
The selected program mode appears in the
multifunction display (
page 178).
Activating manual shift program
Press program mode selector switch
repeatedly until the
M for manual pro-
gram modeM appears in the multifunc-
tion display.
The transmission switches to the
manual program modeM. Automatic
shifting is switched off. The gear range
is not limited.
You can change the gears manually when
the gear selector lever is in drive
positionD. You can upshift or downshift
through the gears in succession.Upshifting
Briefly press the gear selector lever to
the right in theD+direction.
or
Briefly pull right shift paddle2
(
page 181).
The transmission shifts to the next
higher gear.If, instead of the manual program mode
symbol
M, thep symbol appears in the
multifunction display (
page 178), shift to
the next higher gear. The fuel supply will
otherwise be interrupted to prevent the
engine from overrevving.
If you are driving in the manual program
modeM, upshift indicator2 in the multi-
function display advises you to upshift be-
fore the engine reaches the overspeed
range. Thus you can drive at the maximum
engine speed for each gear without over-
revving the engine.
1Gear indicator
2Upshift indicatoriFor information on automatic program
modesC orS, see “Automatic shift program”
(
page 178), “Gear selector lever one-touch
gearshifting” (
page 179), and “Steering wheel
gearshift control one-touch gearshifting*”
(
page 180).
iThe manual program modeM will not be
stored. When the engine is turned off with the
manual program modeM selected, the transmis-
sion will go to the automatic program mode
(CorS) when the engine is restarted.
!In the manual program modeM, the trans-
mission will not upshift, even if the engine has
reached its overrevving range. Shift up to the
next gear before the engine has reached its over-
revving range. Make absolutely certain that the
engine speed does not reach the red marking on
the tachometer (
page 28). Otherwise the
engine could be damaged which is not covered
by the Mercedes-Benz Limited Warranty.


184 Controls in detail
Automatic transmission
Shift to the next higher gear.
The fuel supply will otherwise be inter-
rupted to prevent the engine from over-
revving.
Downshifting
Briefly press the gear selector lever to
the left in theD-direction.
or
Briefly pull left shift paddle1
(
page 181).
The transmission shifts to the next
lower gear.Kickdown
Using the kickdown when driving in the
manual program modeM is not possible.
Deactivating manual shift program
Press the program mode selector
switch (
page 182) repeatedly
until
CorS appears in the multifunction
display.
or
Restart the engine.
The transmission will go to the
automatic program mode (C orS).
The manual program modeM is not
stored.Emergency operation
(Limp-Home Mode)
If vehicle acceleration becomes less re-
sponsive or sluggish or the transmission
no longer shifts, the transmission is most
likely operating in limp-home (emergency
operation) mode. In this mode only second
gear and reverse gear can be selected.
Stop the vehicle in a safe location.
Move the gear selector lever to park
positionP.
Turn off the engine.
Wait at least 10 seconds before
restarting.
Restart the engine.
Move the gear selector lever to
positionD (for second gear) or
positionR.
Have the transmission checked at an
authorized Mercedes-Benz Center as
soon as possible.
Warning!G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced
vehicle control. Your vehicle’s ABS will not
prevent this type of loss of control.
iWhen you brake or stop, the transmission
shifts down to a gear from which you can easily
accelerate or take off.

298 Controls in detail
Useful features
Roadside Assistance button•
The Roadside Assistance button• is
located below the center armrest cover.
Press and hold the •button (for
longer than 2 seconds).
A call to a Mercedes-Benz Roadside
Assistance dispatcher will be initiated.
The •button will flash while the call
is in progress. The message
Connecting Call will appear in the
multifunction display and the audio
system is muted.
When the connection is established, the
message
Call Connected appears in the
multifunction display. The Tele Aid system
will transmit data generating the vehicle
identification number, model, color and lo-
cation (subject to availability of cellular
and GPS signals).
A voice connection between the Roadside
Assistance dispatcher and the occupants
of the vehicle will be established.
Describe the nature of the need for as-
sistance.The Mercedes-Benz Roadside Assistance
dispatcher will either dispatch a qualified
Mercedes-Benz technician or arrange to
tow your vehicle to the nearest authorized
Mercedes-Benz Center. For services such
as labor and/or towing, charges may
apply. Refer to the Roadside Assistance
manual for more information.
The following is only available in the USA:

Sign and Drive services: Services such
as jump start, a few gallons of fuel or
the replacement of a flat tire with the
vehicle spare tire are obtainable.
iThe indicator lamp on the Roadside
Assistance button• remains illuminated in
red for approximately 10 seconds during the sys-
tem self-check after switching on the ignition (to-
gether with the SOS button and the Information
button¡).See system self-check (
page 295) when the
indicator lamp does not come on in red or stays
on longer than approximately 10 seconds.
If the indicator lamp on the Roadside Assistance
button• is flashing continuously and there
was no voice connection to the Response Center
established, then the Tele Aid system could not
initiate a Roadside Assistance call (e.g. the rele-
vant cellular phone network is not available). The
message
Call Failed appears in the multi-
function display.
Roadside Assistance calls can be terminated us-
ing the tbutton on the multifunction steer-
ing wheel or the respective button for ending a
telephone call on the audio system or the
COMAND* head unit.

309 Operation
Driving instructions
Driving instructions
Drive sensibly – save fuel
Fuel consumption, to a great extent, de-
pends on driving habits and operating
conditions.
To save fuel you should:

Keep tires at the recommended tire
inflation pressures.

Remove unnecessary loads.

Allow engine to warm up under low
load use.

Avoid frequent acceleration and
deceleration.

Have all maintenance work performed
at the intervals specified in the
Maintenance Booklet and as required
by the Maintenance System. Contact
an authorized Mercedes-Benz Center.

CLK coupe: Remove roof rack when not
in use.
Fuel consumption is also increased by
driving in cold weather, in stop-and-go
traffic, on short trips and in hilly area.
Drinking and drivingPedals
Warning!G
Drinking and driving and/or taking drugs
and driving are very dangerous combina-
tions. Even a small amount of alcohol or
drugs can affect your reflexes, perceptions
and judgment.
The possibility of a serious or even fatal ac-
cident are greatly increased when you drink
or take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or
taking drugs.
Warning!G
Make sure absolutely no objects are ob-
structing the pedals’ range of movement.
Keep the driver’s footwell clear of all obsta-
cles. If there are any floormats or carpets in
the footwell, make sure the pedals still have
sufficient clearance.
During sudden driving or braking maneu-
vers, the objects could get caught between
or beneath the pedals. You could then no
longer brake or accelerate. This could lead
to accidents and injury.

318 Operation
Driving instructions
Telephones* and two-way radios
Radio transmitters, such as a mobile
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.
Refer to the radio transmitter operation in-
structions regarding use of an external
antenna.Catalytic converter
Your Mercedes-Benz is equipped with
monolithic-type catalytic converters, an
important element in conjunction with the
oxygen sensors to achieve substantial con-
trol of the pollutants in the exhaust emis-
sions. Keep your vehicle in proper
operating condition by following our
recommended maintenance instructions
as outlined in your Maintenance Booklet.
Emission control
Certain systems of the engine serve to
keep the toxic components of the exhaust
gases within permissible limits required by
law.
These systems, of course, will function
properly only when maintained strictly ac-
cording to factory specifications. Any ad-
justments to the engine should therefore
be carried out only by qualified
Mercedes-Benz Center authorized techni-
cians.
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.
!To prevent damage to the catalytic
converters, only use premium unleaded gasoline
in this vehicle.
Any noticeable irregularities in engine operation
should be repaired promptly. Otherwise, exces-
sive unburned fuel may reach the catalytic con-
verter, causing it to overheat and potentially
start a fire.
Warning!G
As with any vehicle, do not idle, park or op-
erate this vehicle in areas where combusti-
ble materials such as grass, hay, or leaves
can come into contact with the hot exhaust
system, as these materials could be ignited
and cause a vehicle fire.

320 Operation
At the gas station
Refueling
The fuel filler flap is located on the
right-hand side of the vehicle towards the
rear. Locking/unlocking the vehicle with
the SmartKey or the SmartKey with
KEYLESS-GO* automatically locks/un-
locks the fuel filler flap.1To open the fuel filler flap
2To insert the fuel filler capTurn off the engine
Vehicles with SmartKey: Remove the
SmartKey from the starter switch.
Vehicles with KEYLESS-GO*: Open the
driver’s door (with driver’s door open,
starter switch is now in position0,
same as with SmartKey removed from
starter switch). The driver’s door then
can be closed again.
Open the fuel filler flap by pushing at
the point indicated by arrow 1.
The fuel filler flap springs open.
Turn the fuel cap counterclockwise and
hold on to it until possible pressure is
released.
Warning!G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious per-
sonal injury.
Never allow sparks, flame or smoking mate-
rials near gasoline!
Turn off the engine before refueling.
Whenever you are around gasoline, avoid in-
haling fumes and skin or clothing contact,
extinguish all smoking materials.
Direct skin contact with fuels and the inha-
lation of fuel vapors can damage to your
health.
iIn cases where the central locking system is
not releasing the fuel filler flap, or the opening
mechanism is clamping, notify Roadside Assis-
tance or an authorized Mercedes-Benz Center.