2011 MERCEDES-BENZ C-Class ECU

ProblemPossible causes/consequences and M Solutions7
The red seat belt
warning lamp flashes
and an intermittent
audible warning
sounds.GRisk of injury
The driver or front passenger has not fastened their seat belt. In
addition, you are driving faster than 15 mph (25 km/h) or you have
briefly driven faster than 15 mph (25 km/h).
XFasten your seat belt ( Y page 50).
The warning lamp goes out and the intermittent audible warning
ceases.GRisk of injury
There are objects on the front-passenger seat. In addition, you are
driving faster than 15 mph (25 km/h) or you have briefly driven
faster than 15 mph (25 km/h).
XRemove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out and the intermittent audible warning
ceases.Warning and indicator lamps in the instrument cluster205On-board computer and displaysBA 204 USA, CA Edition A 2011; 1; 5, en-UShereepeVersion: 3.0.3.62010-05-20T09:17:30+02:00 - Seite 205Z

Vehicle equipment
i This manual describes all the standard
and optional equipment of your vehicle
which was available at the time of
purchase. Country-specific differences are
possible. Bear in mind that your vehicle
may not feature all functions described
here. This also refers to safety-related
systems and functions.
Loading guidelines
GWarning!
Always fasten items being carried as securely
as possible using fastening materials
appropriate for the weight and size of the
load.
In an accident, during hard braking or sudden
maneuvers, loose items will be thrown around
inside the vehicle. This can cause injury to
vehicle occupants unless the items are
securely fastened in the vehicle.
To help avoid personal injury during a collision
or sudden maneuver, exercise care when
transporting cargo. Do not pile luggage or
cargo higher than the seat backrests.
The trunk is the preferred place to carry
objects. Do not place anything on the rear-
window shelf.
Never drive a vehicle with the trunk open.
Deadly carbon monoxide (CO) gases may
enter vehicle interior resulting in
unconsciousness and death.
The handling characteristics of a laden
vehicle are dependent on the distribution of
the load within the vehicle. For this reason,
you should observe the following notes when
transporting a load:
R When transporting a load, never exceed the
maximum permissible gross vehicle weight
or the permissible axle loads for the vehicle
(including occupants). The values are
stated on the vehicle identification plate on
the B-pillar on the driver's side.
R Position heavy loads as far forwards as
possible and as low down in the trunk as
possible.
R The load must not protrude above the
upper edge of the seat backrests.
R always place the load against the rear or
front seat backrests. Make sure that the
seat backrests are securely locked into
place.
R Always place the load behind unoccupied
seats if possible.
R Secure the load with sufficiently strong and
wear-resistant tie down. Pad sharp edges
for protection.
Stowage compartments
Important safety notes
GWarning!
To help avoid personal injury during a collision
or sudden maneuver, exercise care when
storing objects in the vehicle. Put luggage or
cargo in the trunk if possible.
Do not pile luggage or cargo higher than the
seat backrests.
Keep compartment lids closed. This will help
to prevent stored objects from being thrown
about and injuring vehicle occupants during
R braking
R vehicle maneuvers
R an accident
Stowage compartments in the front
Glove box
i Depending on the vehicle equipment,
there is an AUX-IN connection or a Media
Interface installed in the glove box. Media
Interface is a universal interface for mobile
audio equipment, e.g. for an iPod ®
or USB
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braking, or sudden maneuvers, they could be
thrown around inside the vehicle and cause
injury to vehicle occupants.
Parcel nets cannot protect transported goods
in the event of an accident.
Parcel nets are located in the front-passenger
footwell and on the left-hand side of the trunk.
Rear bench seat through-loading
feature
Important safety notes
GWarning!
When expanding the cargo volume, always
fold the seat backrests fully forward.
Unless you are transporting cargo, the seat
backrests must remain properly locked in the
upright position.
In an accident, during hard braking or sudden
maneuvers, loose items will be thrown around
inside the vehicle. This can cause injury to
vehicle occupants unless the items are
securely fastened in the vehicle.
Always use the cargo tie-down rings.
The left-hand and right-hand rear seat
backrests can be folded down separately to
increase the trunk capacity.
Folding the rear seat backrest forward
XMove the driver's or front-passenger seat
forward if necessary.
XOpen the trunk.XPull right-hand or left-hand rear seat
backrest release handle :.
The corresponding rear seat backrest is
released.
XFully insert the rear seat backrest head
restraints.
XFold rear seat backrest ; forwards.XMove the driver's or front-passenger seat
back if necessary.
Folding the rear seat backrest back
XMove the driver's or front-passenger seat
forward if necessary.
! Make sure that the seat belt does not
become trapped when folding the rear seat
backrest back. Otherwise, it could be
damaged.
XFold rear seat backrest : back until it
engages.
GWarning!
Always lock the seat backrest in its upright
position when the rear seat bench is
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occupied, or the extended cargo volume is not
in use.
Check for secure locking by pushing and
pulling on the seat backrest.
In an accident, during hard braking or sudden
maneuvers, loose items will be thrown around
inside the vehicle. This can cause injury to
vehicle occupants unless the items are
securely fastened in the vehicle.
To help avoid personal injury during a collision
or sudden maneuver, exercise care when
transporting cargo.
iYou should always engage the rear seat
backrests if you do not need the through-
loading feature. This will prevent
unauthorized access to the trunk from the
vehicle interior.
XAdjust the head restraints if necessary
(Y page 96).
XMove the driver's or front-passenger seat
back if necessary.
Securing cargos
Lashing eyelets
Observe the following notes on securing
loads:
Rsecure the load using the cargo tie down
rings.
Rdo not use elastic straps or nets to secure
a load, as these are only intended as an
anti-slip protection for light loads.
Rdo not route tie downs across sharp edges
or corners.
Rpad sharp edges for protection.
There are four cargo tie down rings in the
trunk.
Vehicles with through-loading feature on the rearbench seat
:cargo tie down rings
Bag hooks
! The bag hook can bear a maximum load
of 6.6 lbs (3 kg). Do not use it to secure a
load.
:Bag hook
Stowage well under the trunk floor
The TIREFIT kit, the vehicle tool kit, etc. are
located in the stowage compartment.
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XTo open: pull handle : upwards.XHook handle : into rain trough ;.
! Unhook the handle before again before
closing the trunk lid and clip it in securely
to prevent the handle flap from protruding.
Otherwise, you could damage the handle.
Roof carrier
Important safety notes
GWarning!
Only use roof racks approved by Mercedes-
Benz for your vehicle model to avoid damage
to the vehicle.
Follow the manufacturer's installation
instructions. Otherwise, an improperly
attached roof rack system or its load could
become detached from the vehicle.
Do not exceed the maximum roof load of
220 lb (100 kg).
Take into consideration that when the roof
rack is loaded, the handling characteristics
are different from those when operating the
vehicle without the roof rack loaded.
! Mercedes-Benz recommends that you
only use roof carriers that have been tested
and approved for Mercedes-Benz vehicles.
This helps to prevent damage to the
vehicle.
Position the cargo on the roof rack in such
a way that the vehicle will not sustain
damage even when it is in motion.
Depending on the vehicle equipment,
ensure that when the roof carrier is
installed you can:
Rraise the tilt/sliding sunroof fully
Ropen the panorama roof with power tilt/
sliding panel fully
Ropen the trunk lid fully
! To avoid damaging or scratching the
covers, do not use metallic or hard objects
to open them.
Fastening the roof carrier
XOpen covers : carefully in the direction of
the arrow.
XFold covers : upwards.XOnly secure the roof carrier to the
anchorage points under covers :.
XObserve the manufacturer's installation
instructions.
Features
Cup holder
Points to observe before use
GWarning
In order to help prevent spilling liquids on
vehicle occupants and/or vehicle equipment,
only use containers that fit into the cup
holder. Use lids on open containers and do
not fill containers to a height where the
contents, especially hot liquids, could spill
during braking, vehicle maneuvers, or in an
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?Vanity mirrorAMirror cover
Vanity mirror in the sun visor
Mirror light : only functions if the sun visor
is clipped into retainer ; and mirror cover
A has been folded up.
Glare from the side
XFold down the sun visor.XPull the sun visor out of retainer ;.XSwing the sun visor to the side.XPull or push the sun visor in the direction of
the arrow.
Roller sunblinds for the rear side
windows
XTo extend: pull the roller sunblind out by
tab : and hook it onto retainers ; at the
top of the window.
! Always guide the roller sunblind by hand.
Do not let it snap back suddenly as this
would damage the automatic roller
mechanism.
! Do not drive the vehicle with the roller
sunblind hooked in and the side windows
opened simultaneously. The roller sunblind
can jump out of the retainers and spring
back suddenly when driving at high speeds,
e.g. when driving on the freeway. This could
damage the inertia reel. Therefore, either
close the side window or retract the roller
sunblind before driving at high speeds.
Rear window roller sunblind (Sedan)
To extend/retract the roller sunblind
GWarning
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unattended in the
vehicle, even if they are secured in a child
restraint system, or with access to an
unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. The children
could:
Rinjure themselves on parts of the vehicle
Rbe seriously or fatally injured through
excessive exposure to extreme heat or cold
Rinjure themselves or cause an accident with
vehicle equipment that can be operated
even if the SmartKey is removed from the
ignition lock or removed from the vehicle,
such as seat adjustment, steering wheel
adjustment, or the memory function
If children open a door, they could injure other
persons or get out of the vehicle and injure
themselves or be injured by following traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
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Cigarette lighterGWarning
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unattended in the
vehicle, even if they are secured in a child
restraint system, or with access to an
unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. The children
could:
Rinjure themselves on parts of the vehicle
Rbe seriously or fatally injured through
excessive exposure to extreme heat or cold
Rinjure themselves or cause an accident with
vehicle equipment that can be operated
even if the SmartKey is removed from the
ignition lock or removed from the vehicle,
such as seat adjustment, steering wheel
adjustment, or the memory function
If children open a door, they could injure other
persons or get out of the vehicle and injure
themselves or be injured by following traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and the child could be burned on these
parts.
GWarning
Never touch the heating element or sides of
the lighter; they are extremely hot. Hold the
knob only.
Make sure any children traveling with you do
not injure themselves or start a fire with the
hot cigarette lighter.
Center console, front
XTurn the key to position 2 in the ignition
lock.
XSlide cover : forwards until it engages.XPress in cigarette lighter ;.
Cigarette lighter ; will pop out
automatically when the heating element is
red-hot.
12 V sockets
Points to observe before use
! If you are using all sockets in the vehicle,
make sure that you do not exceed the
maximum current draw of 55 A. Otherwise,
you will overload the fuses.
The socket can be used for accessories with
a maximum power consumption of 180 W,
e.g. lamps or chargers for mobile phones.
If you use the socket for long periods when
the engine is switched off, the battery may
discharge.
Dashboard socket
The socket is installed in vehicles with audio
equipment or COMAND.
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a circle without impeding the remaining
traffic.
In order to calibrate the compass correctly,
observe the following points:
Rcalibrate the compass in the open and not
in the vicinity of steel structures or high-
voltage power lines
Rswitch off electrical consumers such as
climate control, the windscreen wipers or
the rear window heating
Rclose all doors and the trunk lid
XSwitch on the ignition.XPress and hold button = for approximately
six seconds until the C symbol appears in
compass display ;.
XDrive a full circle at approximately 3 mph
(5 km/h) to 6 mph (10 km/h).
Once the calibration has been successfully
completed, the current heading appears in
compass display ;.
Floormat on the driver's side
GWarning!
Whenever you are using a floormat, make sure
there is enough clearance and that the
floormat is securely fastened.
The floormat should always be securely
fastened using the fastening equipment.
Before driving off, check that the floormat is
securely in place and adjust it if necessary. A
loose floormat could slip and hinder proper
functioning of the pedals.
Do not place several floormats on top of each
other as this may impair pedal movement.
XSlide seat backwards.XTo install: place the floormat in position.XPress floormat eyelets : onto retainer
pins ;.
XTo remove: pull the floormats off
retainers ;.
XRemove the floormat.236FeaturesLoading, stowing and features
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