2008 MERCEDES-BENZ CLS COUPE keyless

Driving and parking
102
Automatic transmission
P
Park position with selector lever lock
R Reverse gear
N Neutral
D Drive position
X Before starting, make sure P is selected.
i The engine can also be started when the
selector lever is in position N.
Further information about the automatic
transmission (Y page 104).
Starting the engine with the key i
Vehicles with automatic transmission:
You can also use the "touch-start" function.
To do this, turn the key to position 3 and release it immediately. The engine then
starts automatically.
X To start a petrol engine: turn the key to
position 3 in the ignition lock (Y page 74)
and release it.
The engine starts automatically.
X To start a diesel engine: turn the key to
position 2 in the ignition lock (Y page 74).
The q preglow indicator lamp in the
instrument cluster lights up.
X When the q preglow indicator lamp
goes out, turn the key to position
3 (Y page 74) and release it.
The engine starts automatically.
i You can start the engine without preglow
if the engine is warm.
Starting the engine with KEYLESS GO* G
Risk of injury
Your vehicle can be started using a valid
KEYLESS GO key*. For this reason, children
should never be left unsupervised in the
vehicle. Always take the KEYLESS GO
key* with you when leaving the vehicle, even if you are only leaving it for a short
time.
The KEYLESS GO button can be used to start
the vehicle without inserting the key in the
ignition lock.
The KEYLESS GO button is on the selector
lever. 1
KEYLESS GO button Controls
* optional
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Driving and parking
103
X
Depress the brake pedal.
The selector lever lock is released.
X Petrol engine: press KEYLESS GO button
1 once.
The engine starts automatically.
X Diesel engine: press KEYLESS GO button
1 once.
Preglow is activated and the engine starts
automatically.
i You can start the engine without preglow
if the engine is warm:
XPress and hold KEYLESS GO button
1 until the engine is running. Pulling away
! AMG vehicles: at low engine tempera-
tures

(below + 20° C), the maximum engine
speed is limited in order to protect the
engine. Avoid driving at full throttle when
the engine is cold in order to protect the
engine and avoid inconveniences.
! Do not select reverse gear unless the
vehicle is stationary, otherwise the trans-
mission will be damaged. Do not drive at high engine speeds until the
engine

has warmed up. This will protect the
engine.
i The vehicle will lock itself centrally once
you have pulled away. The locking knobs in
the doors drop down.
You can open the doors from the inside at
any time.
You can also deactivate the automatic lock-
ing feature ( Y page 127).
i It is only possible to move the selector
lever to the desired position if you depress
the brake pedal. Only then is the selector
lever lock released.
X Depress the brake pedal and hold it down.
X Pull the parking brake release handle to
release the parking brake.
X Move the selector lever to position D or R.
i Wait for the shift process to complete
before pulling away.
X Release the brake pedal.
X Carefully depress the accelerator pedal.
i Upshifts take place at higher engine
speeds after a cold start. This helps the catalytic converter to reach its operating
temperature more quickly. Parking
G
Risk of accident
Only remove the key from the ignition lock
when the vehicle is stationary since you
cannot steer the vehicle with the key
removed.
Never leave children unsupervised in the
vehicle. They could release the parking
brake. This could lead to a serious or fatal
accident. G
Risk of fire
Make sure that the exhaust system does
not under any circumstances come into
contact with easily ignitable material such
as dry grass or petrol. The material could
otherwise

ignite and set the vehicle on fire. Controls
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Transmission
104
Parking brake
1
Release handle
2 Parking brake
X To release: depress the brake pedal and
keep it depressed.
X Pull release handle 1.
X The 3 indicator lamp in the instrument
cluster goes out.
X To apply: depress parking brake 2 firmly.
The 3 indicator lamp in the instrument
cluster lights up if the engine is running.
i On steep slopes, turn the front wheels
towards the kerb. Stopping the engine
G
Risk of accident
If the engine is not running, there is no
power assistance for the steering and
brakes. Steering and braking then takes
much more effort.
As a result, you might lose control of the
vehicle, cause an accident and injure your-
self and others.
Do not switch off the engine while driving.
X Move the selector lever to P.
With the key
X Turn the key to position 0 (Y page 74) in
the ignition lock and remove it.
The immobiliser is activated.
With KEYLESS GO*
X Press and hold the KEYLESS GO button
(Y page 74).
The engine stops and all the lamps in the
instrument cluster go out ( Y page 26). Transmission
G
Risk of accident
The movement of the pedals must not be
impaired in any way. Do not keep any
objects in the driver's footwell. Make sure
that there is sufficient clearance around the
pedals when floormats or carpets are used.
Do not change down for additional engine
braking on a slippery road surface. This
could cause the drive wheels to lose their
grip and the vehicle could skid. Automatic transmissionControls
* optional
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Refuelling
191
!
Do not start the engine if you accidentally
refuel with the wrong fuel. Otherwise, you
risk engine damage. Consult a specialised
qualified workshop and have the fuel sys-
tem emptied completely.
When you open or close the vehicle with the
key or KEYLESS GO*, the fuel filler flap is
automatically unlocked or locked.
The fuel filler flap is to the rear on the right.1 To open the fuel filler flap
2 To insert the fuel cap
3 Tyre pressure table
4 Fuel type X
To open: press the fuel filler flap in the
direction of arrow 1.
The fuel filler flap opens slightly.
X Open the fuel filler flap.
X Turn the fuel filler cap to the left and
remove it.
X Insert the fuel filler cap into the holder
bracket on the inside of filler flap 2.
X Only fill the tank until the pump nozzle
switches off.
! Overfilling the tank could damage the fuel
system.
X To close: replace the fuel filler cap and turn
it clockwise. The fuel filler cap audibly
engages.
X Close the fuel filler flap.
i Vehicles with a diesel engine:
If you have run the tank completely dry, it
will be necessary to bleed the fuel system
(Y page 254).
Petrol (EN 228)
! Refuel using only unleaded premium
grade petrol with a minimum octane num-
ber of 95 RON/85 MON conforming to
European standard EN 228.
You could otherwise impair engine output
or damage the engine.
You will find further information about pet-
rol under "Fuel" in the index.
i As a temporary measure, but only when
the recommended fuel is not available, you
may also use regular unleaded petrol,
91 RON/82.5 MON. This may reduce per-
formance and increase petrol consump-
tion. Avoid driving at full throttle.
In some countries, the available petrol qual-
ity may not be sufficient and could cause
coking around the inlet valve. In such
cases, and in consultation with a
Mercedes-Benz Service Centre, the petrol
may be mixed with the additive recommen-
ded by Mercedes-Benz (part no.
A000989254510). You must observe the
notes and mixing ratios given on the con-
tainer.
Operation
* optional
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Display messages
223Display messages Possible cause/consequence Possible solution
P Selector lever in
park position You have switched off the engine with the
KEYLESS
GO button* and opened the driv-
er's door.
or
With HOLD activated, you have either:
R opened the driver’s door and released
the seat belt or
R switched off the engine or
R opened the bonnet
The horn may also sound at regular inter-
vals. The horn becomes louder if you
attempt to lock the vehicle.
The engine cannot be started. X
Move the selector lever to P.
The engine can be started again. P Selector lever in
park position You have tried to switch off the engine
with the KEYLESS GO button*

while the
selector lever is in position R or D. X
Move the selector lever to P. Please shift to P or N You have attempted to start the engine
while the selector lever is not in position
P or N. X
Move the selector lever to P or N. PRE-SAFE inoperative See
Owner's Manual
PRE-SAFE
®
has failed. All other occupant
safety
systems, e.g. airbags, remain avail-
able. X
Visit a qualified specialist workshop. Practical advice
* optional
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Display messages
238 Display messages Possible cause/consequence Possible solution
H Tyre pressure
Check tyres The pressure in one or more tyres has
dropped significantly. The affected wheel
is highlighted in the tyre pressure display
of the tyre pressure monitor*. X
Stop the vehicle without making any sudden
steering
or braking manoeuvres. Pay attention
to the traffic conditions as you do so.
X Check the tyres.
X Repair or change the faulty tyre if necessary
(Y page 276).
X Check the tyre pressure and correct it if nec-
essary ( Y page 200).
The warning will disappear automatically after
you have been driving for a few minutes with
the corrected tyre pressure. I Change key batter-
ies
The batteries of the KEYLESS GO key* are
discharged. X
Change the batteries ( Y page 269).I Key not detected
The KEYLESS GO key* is not in the vehicle.
It will no longer be possible to centrally
lock

the vehicle and start the engine if the
engine is switched off. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Look for the KEYLESS GO key*. I Key not detected
The KEYLESS GO * key is not detected
while

the engine is running, because there
is interference from a strong source of
radio waves. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Operate the vehicle using the key in the ignition
lock if necessary. Practical advice
* optional
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Display messages
239Display messages Possible cause/consequence Possible solution
I Key not detected
The KEYLESS GO key* cannot be detected
at present. X
Change the location of the KEYLESS GO key*
within the vehicle.
X Operate the vehicle using the key in the ignition
lock if necessary. I Key still in vehi-
cle
The KEYLESS GO key* was detected
inside the vehicle during locking. X
Remove the KEYLESS GO key* from the vehi-
cle. I Please replace key The key no longer functions. X
Visit a qualified specialist workshop. X inoperative Bat-
tery weak The battery voltage is insufficient. The
auxiliary heating/ventilation*
has
switched off or cannot be switched on. X
Drive for a longer distance.
The battery is being charged. The auxiliary
heating/ventilation* is reactivated as soon as
there is sufficient battery voltage. X inoperative Refuel There is insufficient fuel in the fuel tank.
The

auxiliary heating* cannot be switched
on. X
Refuel at the nearest filling station. X inoperative See
Owner's Manual
The auxiliary heating* has a temporary
malfunction or is faulty. X
When the vehicle is on a level surface and the
engine has cooled down: try to switch on the
auxiliary heating*

four times, waiting for sev-
eral minutes between each attempt.
X If the auxiliary heating* does not switch on:
visit a qualified specialist workshop. Practical advice
* optional
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Troubleshooting
263KEYLESS GO*
Problem Possible cause/consequence Suggested solutions
You cannot lock or unlock the
vehicle using the KEYLESS GO
key. The KEYLESS GO key batteries
are discharged or nearly dis-
charged. X
Lock or unlock the vehicle using the remote control function of the
key.
Point the tip of the key at the driver's door handle from close
range and try to open the vehicle again.
If this does not work:
X Lock or unlock the vehicle using the emergency key element
(Y page 266).
X Check the KEYLESS GO key batteries (Y page 270) and replace
them if necessary (Y page 270). There is a fault with KEYLESS GO. X
Lock or unlock the vehicle using the remote control function of the
key.

To do this, point the tip of the key at the driver's door handle
from close range and try to open the vehicle again.
X Have the KEYLESS GO key checked at a qualified specialist work-
shop. There is interference from a pow-
erful source of radio waves. X
Lock or unlock the vehicle using the emergency key element
(Y page 266). The battery check lamp in the
KEYLESS GO key does not light
up when tested. The KEYLESS GO key batteries
are discharged. X
Change the batteries ( Y page 270). Practical advice
* optional
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