power steering MERCEDES-BENZ E-Class COUPE 2012 C207 Owner's Manual

Display ........................................... 285
Exterior lights ................................ 284
Gear or selector lever ....................286
Matte finish ................................... 282
Notes ............................................. 279
Paint .............................................. 281
Plastic trim .................................... 285
Power washer ................................ 281
Rear view camera .......................... 285
Roof lining ...................................... 287
Seat belt ........................................ 286
Seat cover ..................................... 286
Sensors ......................................... 284
Soft top .......................................... 282
Steering wheel ............................... 286
Tail pipes ....................................... 285
Trim pieces .................................... 286
Washing by hand ........................... 280
Wheels ........................................... 281
Wind deflector ............................... 283
Windows ........................................ 284
Wind screen ................................... 283
Wiper blades .................................. 284
Wooden trim .................................. 286
Cargo tie down rings ......................... 255
Car wash (care) ................................. 280
CD player/CD changer (on-board
computer) .......................................... 204
Cell phone see Mobile phone
Center console ..................................... 30
Central locking Automatic locking (on-board
computer) ...................................... 210
Locking/unlocking (SmartKey) ........70
Changing bulbs
High-beam headlamps ...................124
Important safety notes ..................122
Low-beam headlamps ....................124
Overview of bulb types ..................123
Parking lamps ................................ 125
Standing lamps (front) ...................125
Turn signals (front) ......................... 125
Child-proof locks
Important safety notes ....................59
Children
In the vehicle ................................... 55
Restraint systems ............................ 55Child seat
LATCH-type (ISOFIX) child seat
anchors ............................................ 57
Special seat belt retractor ...............57
Top Tether ....................................... 58
Cigarette lighter ................................ 260
Climate control Automatic climate control (3-
zone) .............................................. 133
Controlling automatically ...............135
Cooling with air dehumidification ..134
Defrosting the windows .................138
Defrosting the windshield ..............137
Dual-zone automatic climate
control ........................................... 131
Important safety notes ..................130
Indicator lamp ................................ 135
Maximum cooling .......................... 138
Notes on using automatic climate
control ................................... 132, 134
Overview of systems ......................130
Problems with cooling with air
dehumidification ............................ 135
Problem with the rear window
defroster ........................................ 139
Rear control panel .........................133
Refrigerant ..................................... 344
Setting the air distribution .............136
Setting the airflow .........................137
Setting the air vents ......................140
Setting the climate mode ............... 135
Setting the temperature ................136
Switching air-recirculation mode
on/off ............................................ 139
Switching on/off ........................... 134
Switching residual heat on/off ......139
Switching the rear window
heating on/off ............................... 138
Switching the ZONE function on/
off .................................................. 137
Cockpit
Overview .......................................... 26
see Instrument cluster
COMAND
see separate operating instructions
Combination switch .......................... 1196Index

XMake sure that the SmartKey is in position
2 in the ignition lock.XTo switch on: press button : repeatedly
until the desired heating level is set.XTo switch off: press button : repeatedly
until all the indicator lamps go out.
Problems with the seat heating
The seat heating has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
XSwitch off electrical consumers which you
do not need, such as the rear window
defroster or interior lighting.
Switching the seat ventilation on/off
Switching on/off
The three blue indicator lamps in the buttons
indicate the ventilation level you have
selected.
i If the battery voltage is too low, the seat
ventilation may switch off.
XMake sure that the SmartKey is in position
2 in the ignition lock.XTo switch on: press button : repeatedly
until the desired ventilation level is set.
i Coupe: you can open the side windows
and the panorama roof with power tilt/
sliding panel using the "Convenience
opening" feature ( Y page 84). The seat
ventilation of the driver's seat
automatically switches to the highest level.
Cabriolet: you can open the soft top and the
rear side windows with the SmartKey
( Y page 88). The seat ventilation of the
driver's seat automatically switches to the
highest level.XTo switch off: press button : repeatedly
until all the indicator lamps go out.
Problems with the seat ventilation
The seat ventilation has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
XSwitch off electrical consumers which you
do not need, such as the rear window
defroster or interior lighting.
AIRSCARF (Cabriolet)
Switching on/off
GWARNING
Very hot air can flow out of the AIRSCARF
vents in the head restraints when AIRSCARF
is in operation. This can cause burns on
unprotected skin near the AIRSCARF vents.
Lower the heating output in good time, when
necessary.
The AIRSCARF function warms the head and
neck area of vehicle occupants with warm air.
The warm air flows out of the holes in the head
restraints.
The three red indicator lamps in the button
indicate the heating level you have selected.
108SeatsSeats, steering wheel and mirrors

SmartKey positions
SmartKeygTo remove the SmartKey(shift the transmission to position P)1Power supply for some consumers, such
as the windshield wipers2Ignition (power supply for all consumers)
and drive position3To start the engine
If the SmartKey is in position 0 in the ignition
lock for an extended period of time, it can no
longer be turned in the ignition lock. The
steering is then locked. To unlock, remove the
SmartKey and reinsert it into the ignition lock.
The steering is locked when you remove the
SmartKey from the ignition lock.
i The SmartKey can be turned in the
ignition lock even if it is not the correct
SmartKey for the vehicle. The ignition is not
switched on. The engine cannot be started.
KEYLESS-GO
General information
Vehicles with KEYLESS-GO are equipped with
a SmartKey featuring an integrated KEYLESS-
GO function and a detachable Start/Stop
button.
The Start/Stop button must be inserted into
the ignition lock and the SmartKey must be in
the vehicle.
Pressing the Start/Stop button several times
in succession corresponds to the different
SmartKey positions in the ignition lock. This
is only the case if you are not depressing the
brake pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts
immediately.
The Start/Stop button can be removed from
the ignition lock. Then, you can insert the
SmartKey into the ignition lock.
i You do not have to remove the Start/Stop
button from the ignition lock when you
leave the vehicle. However, you should
always take the SmartKey with you when
leaving the vehicle. The vehicle can be
started with the Start/Stop button and the
electrical equipment can be operated while
the SmartKey is in the vehicle.:Start/Stop button;Ignition lockXInsert Start/Stop button : into ignition
lock ;.
i
When you insert Start/Stop button :
into ignition lock ;, the system requires a
detection time of approximately two
seconds before you can use Start/Stop
button :.
Driving145Driving and parkingZ

Problems with fuel and the fuel tankProblemPossible causes/consequences and M SolutionsFuel is leaking from the
vehicle.GRisk of explosion or fire
The fuel line or the fuel tank is defective.
XTurn the SmartKey to position 0(Y page 145) in the ignition lock
immediately and remove it.XDo not restart the engine under any circumstances.XConsult a qualified specialist workshop.The fuel filler flap
cannot be opened.The fuel filler flap is not unlocked.
or
The SmartKey battery is discharged.XUnlock the vehicle ( Y page 70).
or
XUnlock the vehicle using the mechanical key ( Y page 73).The fuel filler flap is unlocked, but the opening mechanism is
jammed.XConsult a qualified specialist workshop.Parking
Important safety notes
GWARNING
Do not park this vehicle in areas where
combustible materials can come into contact
with the hot exhaust system. Do not park the
vehicle on dry grassland or harvested grain
fields. Combustible materials, such as grass,
hay or leaves could be ignited by the hot
exhaust system and cause a vehicle fire.
Unintended vehicle movement can cause
serious personal injury or damage to the
vehicle or the vehicle drivetrain. To reduce
such risks, always do the following before
turning off the engine and leaving the vehicle:
R keep your right foot on the brake pedal.
R engage the parking brake.
R shift the automatic transmission to park
position P.
R slowly release the brake pedal.
Rwhen parked on an incline, always turn the
front wheels towards the road curb.
R turn the SmartKey in the ignition lock to
position 0 and remove the SmartKey from
the ignition lock, or press the KEYLESS-GO
Start/Stop button.
R take the SmartKey with you and lock the
vehicle when leaving.
Switching off the engine
Important safety notes
GWARNING
Do not turn off the engine before the vehicle
has come to a complete stop. With the engine
not running, there is no power assistance for
the brake and steering systems. In this case,
it is important to keep in mind that a
considerably higher degree of effort is
necessary to brake and steer the vehicle.
158ParkingDriving and parking

Rolling with the engine switched offGWARNING
There is no power assistance for the steering
and the brake when the engine is not running.
Steering and braking requires significantly
more effort and you could lose control of the
vehicle and cause an accident as a result.
Do not turn off the engine while the vehicle is
in motion.
Exhaust check
GWARNING
Inhalation of exhaust gas is hazardous to your
health. All exhaust gas contains carbon
monoxide (CO), and inhaling it can cause
unconsciousness and possible death.
Do not run the engine in confined areas (such
as a garage) which are not properly ventilated.
If you think that exhaust gas fumes are
entering the vehicle while driving, have the
cause determined and corrected
immediately. If you must drive under these
conditions, drive only with at least one
window fully open at all times.
Certain engine systems are designed to keep
the level of poisonous components in exhaust
fumes within legal limits.
These systems only work at peak efficiency
when they are maintained exactly in
accordance with the manufacturer's
specifications. For this reason, all work on the
engine must be carried out only by qualified
and authorized Mercedes-Benz technicians.
The engine settings must not be changed in
any circumstances. Furthermore, all specific
service work must be carried out at regular
intervals and in accordance with the
Mercedes-Benz service requirements. Details
can be found in the Service Booklet.
Brakes
Important safety notesGWARNING
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.
GWARNING
Make sure that you do not endanger other
road users when you apply the brakes.
Downhill gradients
! On long and steep gradients, you must
reduce the load on the brakes by shifting
early to a lower gear. This allows you to take
advantage of the engine braking effect and
helps avoid overheating and excessive
wear of the brakes.
When you take advantage of the engine
braking effect, a drive wheel may not turn
for some time, e.g. on a slippery road
surface. This could cause damage to the
drive train. This type of damage is not
covered by the Mercedes-Benz warranty.
Heavy and light loads
GWARNING
Depressing the brake pedal constantly results
in excessive and premature wear to the brake
pads.
It may also cause the brakes to overheat,
seriously impairing their effectiveness. It may
then not be possible to stop the vehicle in
sufficient time to avoid an accident.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately, but
drive on for a short while. This allows the
airflow to cool the brakes more quickly.
Driving tips161Driving and parkingZ

Display messagesPossible causes/consequences and M SolutionsMGRisk of accident
The hood is open.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XApply the parking brake.XClose the hood.CAt least one door is open.XClose all the doors._
Rear Left Backrest
Not Latched orRear
Right Backrest Not
LatchedGRisk of injury
The backrest in the rear is not engaged on the left-hand and/or
right-hand side.
XPush the backrest back until it engages._
Lock Seat Backrest
Front Left orLock
Seat Backrest
Front RightThe driver's or front passenger's seat backrest is not engaged. A
warning tone also sounds.XPush the backrest back until it engages.J
Trunk Partition
OpenThe trunk partition is open.XClose the trunk partition ( Y page 93).D
Power Steering
Malfunction See
Operator's ManualGRisk of accident
The power steering is malfunctioning.
You will need to use more force to steer.
A warning tone also sounds.
XCheck whether you are able to apply the extra force required.XIf you are able to steer safely: carefully drive on to a qualified
specialist workshop.XIf you are unable to steer safely: do not drive on. Contact the
nearest qualified specialist workshop.Phone No ServiceYour vehicle is outside the network provider's transmitter/
receiver range.XWait until the mobile phone operational readiness symbol
appears in the multifunction display.Display messages237On-board computer and displaysZ

! When cleaning the sensors with a power
washer, maintain a distance between the
vehicle and the nozzle of the power washer
of at least 11.8 in (30 cm). Information
about the correct distance is available from
the equipment manufacturer.
Cleaning the rear view camera
Example: Coupe
XUse clear water and a soft cloth to clean
camera lens :.
!
Do not clean the camera lens and the area
around the rear view camera with a power
washer.
Cleaning the exhaust tail pipes
Impurities combined with the effects of road
grit and corrosive environmental factors may
cause flash rust to form on the surface. You
can restore the original shine of the exhaust
tail pipe by cleaning it regularly, especially in
winter and after washing.
! Do not clean the exhaust tail pipes with
alkaline-based cleaning agents, such as
wheel cleaner.
XClean the exhaust tail pipes with a chrome
care product tested and approved by
Mercedes-Benz.Interior care
Cleaning the displayXBefore cleaning the display, make sure that
it is switched off and has cooled down.XClean the display surface using a
commercially-available microfiber cloth
and TFT/LCD display cleaner.XDry the display surface using a dry
microfiber cloth.
! For cleaning, do not use any of the
following:
R alcohol-based thinner or gasoline
R abrasive cleaning agents
R commercially-available household
cleaning agents
These may damage the display surface. Do
not put pressure on the display surface
when cleaning. This could lead to
irreparable damage to the display.
Cleaning the plastic trim
GWARNING
When cleaning the steering wheel boss and
dashboard, do not use cockpit sprays or
cleaning agents containing solvents. Cleaning
agents containing solvents cause the surface
to become porous, and as a result, plastic
parts may break away and be thrown around
the interior when an air bag is deployed, which
may result in severe injuries.
! Do not affix the following to plastic
surfaces:
R stickers
R films
R scented oil bottles or similar items
You can otherwise damage the plastic.
! Do not allow cosmetics, insect repellent
or sunscreen to come into contact with the
plastic trim. This maintains the high-quality
look of the surfaces.
Care285Maintenance and careZ

Towing and tow-starting
Important safety notes
GWARNING
If you tow the vehicle, you must use a rigid
towing bar if:
R the engine is not running.
R there is a brake system malfunction.
R there is a malfunction in the power supply
or the vehicle's electrical system.
The power assistance for the steering and the
brake force booster do not work when the
engine is not running. You will need more
force to steer and brake, you may have to
depress the brake pedal with maximum force.
Before towing away, make sure that the
steering can be moved and is not locked.
If you tow or tow-start another vehicle, its
weight must not exceed the maximum
permissible gross vehicle weight of your
vehicle.
GWARNING
The vehicle is braked when the HOLD function
or DISTRONIC PLUS is activated. Therefore,
deactivate HOLD and DISTRONIC PLUS if the
vehicle is to be towed.
It is better to have the vehicle transported
than to have it towed.
! You may only tow the vehicle a maximum
distance of 30 miles (50 km). A towing
speed of 30 mph (50 km/h) must not be
exceeded.
For towing distances over 30 miles
(50 km), the vehicle must loaded onto a
transporter.
! Only secure the tow rope or tow bar at the
towing eyes. Otherwise, the vehicle could
be damaged.
! Do not use the towing eye for recovery,
as this could damage the vehicle. If in
doubt, recover the vehicle with a crane.
! When towing, pull away slowly and
smoothly. If the tractive power is too high,
the vehicles could be damaged.
! Do not tow with sling-type equipment.
This could damage the vehicle.
! On vehicles with KEYLESS-GO, use the
SmartKey instead of the Start/Stop
button. Turn the SmartKey to position 2 in
the ignition lock and shift the automatic
transmission to N. Then, turn the SmartKey
back to 0 and leave it in the ignition lock.
The automatic transmission must be in
position N when the vehicle is being towed.
The battery must be connected and charged.
Otherwise, you:
R cannot turn the SmartKey to position 2 in
the ignition lock
R cannot shift the automatic transmission to
position N
Release the selector lever lock manually to
move it out of position P(Y page 155).
i Before the vehicle is towed, switch off the
automatic locking feature (Y page 78). You
could otherwise be locked out when
pushing or towing the vehicle.
Installing/removing the towing eye
Installing the towing eye
XRemove the towing eye from the vehicle
tool kit ( Y page 290).GWARNING
The exhaust tail pipe may be hot. You could
burn yourself if you touch the tail pipe. Be
particularly careful when removing the rear
cover.
The mountings for the removable towing eyes
are located in the bumpers. They are at the
front and at the rear, under the covers.
Towing and tow-starting301Breakdown assistanceZ

Example: Cabriolet
XPress the mark on cover : inwards in the
direction of the arrow.XTake cover : off the opening.XScrew the towing eye in clockwise to the
stop and tighten it.
Removing the towing eye
XLoosen the towing eye and unscrew it.XAttach cover : to the bumper and press
until it engages.XPlace the towing eye in the vehicle tool kit.
Towing the vehicle with the rear axle
raised
When towing your vehicle with the rear axle
raised, it is important that you observe the
safety instructions ( Y page 301).
! The ignition must be switched off if you
are towing the vehicle with the rear axle
raised. Intervention by ESP ®
could
otherwise damage the brake system.
XSwitch on the hazard warning lamps
( Y page 119).XTurn the SmartKey to position 0 in the
ignition lock and remove the SmartKey
from the ignition lock.XWhen leaving the vehicle, take the
SmartKey or the KEYLESS-GO key with you.
Towing a vehicle with both axles on
the ground
When having your vehicle towed, observe the
important safety notes ( Y page 301).
GWARNING
The power assistance for the steering and the
brake force booster do not work when the
engine is not running. You will then need
much more effort to brake and steer the
vehicle. Adapt your style of driving
accordingly.
XSwitch on the hazard warning lamps
( Y page 119).
i
When towing with the hazard warning
lamps switched on, use the combination
switch as usual to signal a change of
direction. In this case, only the turn signals
for the desired direction flash. When the
combination switch is reset, the hazard
warning lamps start flashing again.
XTurn the SmartKey to position 2 in the
ignition lock.XWhen the vehicle is stationary, depress the
brake pedal and keep it depressed.XShift the automatic transmission to
position N.XRelease the brake pedal.XRelease the parking brake.
Transporting the vehicle
The towing eye can be used to pull the vehicle
onto a trailer or transporter for transporting
purposes.
302Towing and tow-startingBreakdown assistance