2011 MERCEDES-BENZ C-CLASS SALOON technical data

X
Pull the boot lid/tailgate down using
recess :.
X Estate: push the tailgate closed from out-
side the vehicle.
X If necessary, lock the vehicle with
the & button on the key (Y page 84) or
with KEYLESS-GO (Y page 85).
i If a KEYLESS-GO key is detected in the
boot/luggage compartment, the boot lid/
tailgate will not lock.
Saloon: the boot lid then opens again. Opening/closing automatically from
outside
Important safety notes G
WARNING
Only for the United Kingdom: if the vehicle
has been locked with the key, the double lock
function is activated as standard. It is then not
possible to open the doors from inside the
vehicle.
Therefore, do not leave any people behind in
the vehicle, particularly children, elderly peo-
ple or people in need of special assistance if
the vehicle has been locked with the key. As
a result, they may not be able to free them-
selves in the event of an emergency. As a
result, they could be seriously or even fatally
injured by prolonged exposure to extremely
high or low temperatures, for example. In this
case, rescuing people from outside the vehi-
cle is difficult.
Deactivate the interior motion sensor before
you lock the vehicle with the key. The doors
can then be opened from the inside after the
vehicle has been locked from the outside with
the key. G
WARNING
Monito rthe tailgate opening and closing pro-
cedures to make sure that nobody can become trapped. To stop the opening or clos-
ing procedure, press the closing button on the
tailgate again or pull the handle on the outside
of the tailgate.
! The boot lid/tailgate swings upwards and
to the rear when opened. Therefore, make
sure that there is sufficient clearance
above and behind the boot lid/tailgate.
i You will find details on the boot lid/tail-
gate opening dimensions in the Technical
data section (Y page 386).
Opening You can open the boot lid/tailgate automati-
cally with the key or the handle in the boot
lid/tailgate.
Estate with EASY-PACK tailgate:
open/
close the tailgate fully using the automatic
function after stopping the tailgate in an inter-
mediate position.
X Press and hold the Fbutton on the key
until the boot lid/tailgate opens.
or
X If the boot lid/tailgate is unlocked, pull the
handle of the boot lid/tailgate and let it go
again immediately.
Closing You can close the tailgate automatically using
the closing button
5
or the locking button 6
.
5 For vehicles with the EASY-PACK tailgate only.
6 For vehicles with the EASY-PACK tailgate and KEYLESS-GO only. Boot/luggage compartment
93Opening and closing Z

X
Take the emergency key element out of the
key (Y page 86).
i You will find details on the tailgate open-
ing dimensions in the Technical data sec-
tion (Y page 386). !
When opening, the tailgate swings up and
out. Therefore, make sure that there is suf-
ficient clearance above and behind the tail-
gate.
X Insert emergency key element ;into
opening in trim :.
X Turn emergency key element ;90° clock-
wise.
X Push emergency key element ;in the
direction of the arrow and open the tail-
gate. Side windows
Important safety notes
G
WARNING
Make sure that nobody can become trapped
between the side window and the door frame
when a side window is opened. Do not touch
or lean against the side window during the
opening procedure. You could become trap-
ped between the side window and the door
frame as the side window moves down. If
there is a risk of becoming trapped, release
the switch or pull the switch upwards to close
the side window again. G
WARNING
Make sure that nobody can become trapped
as you close a side window. If there is a risk
of becoming trapped, release the switch or
press it again to open the side window again. G
WARNING
Children may injure themselves if they open
or close the side windows.
Never leave children unsupervised in the vehi-
cle. Always take the key with you when leaving
the vehicle, even if you are only leaving it for
a short time. G
WARNING
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system. The children could:
R be seriously or even fatally injured on parts
of the vehicle
R be seriously or even fatally injured by pro-
longed exposure to extremely high or
extremely low temperatures
If children open a door, they could:
R seriously or even fatally injure other people
R get out of the vehicle and injure them-
selves, or be seriously or even fatally
injured by a passing vehicle
Activate the child-proof locks/override fea-
ture if children are travelling in the vehicle.
They could otherwise open doors or side win-
dows while the vehicle is in motion and
thereby injure themselves or others. 96
Side windowsOpening and closing

General information
i
When towing a trailer, set the tyre pres-
sure on the rear axle of the towing vehicle
for a maximu mload; see the tyre pressure
table in the fuel filler flap (Y page 361).
You will find installation dimensions and loads
in the "Technical data" section
(Y page 387).
The maximum permissible trailer drawbar
noseweight on the ball coupling is 75 kg.
However, the actual noseweight must not
exceed the value given on the trailer tow hitch
and trailer identification plates. The lowest
weight applies.
! Use a noseweight as close as possible to
the maximum permissible noseweight. Do
not use a noseweight of less than 50 kg,
otherwise the trailer may come loose.
Bear in mind that the payload and the rear
axle load are reduced by the actual nose-
weight.
Please note that when towing a trailer, PARK-
TRONIC (Y page 196), parking guidance
(Y page 199) and Blind Spot Assist
(Y page 205) are only available with limita-
tions, or not at all.
i The height of the ball coupling changes
with the load of the vehicle. If necessary,
use a trailer with a height-adjustable draw-
bar.
Driving tips i
Observe the notes on ESP ®
trailer stabi-
lisation (Y page 77).
In Germany, the maximum permissible speed
for vehicle/trailer combinations depends on
the type of trailer, and is either 80 km/h or
100 km/h. In some countries, higher maxi-
mum speeds are permissible for vehicle/
trailer combinations. Before beginning the
journey, check the trailer's documents to see
what the maximum permitted speed is.
For certain Mercedes-Benz vehicles, the max-
imum permissible rear axle load is increased when towing a trailer. Refer to the "Technical
data" section to find out whether this applies
to your vehicle. If you utilise any of the added
maximum rear axle load when towing a trailer,
the vehicle/trailer combination may not
exceed a maximum speed of 100 km/h for
reasons concerning the operating permit.
This also applies in countries in which the
permissible maximum speed for vehicle/
trailer combinations is above 100 km/h.
When towing a trailer, your vehicle's handling
characteristics will be different in comparison
to when driving without a trailer.
The vehicle/trailer combination:
R is heavier
R is restricted in its acceleration and gradi-
ent-climbing capability
R has an increased braking distance
R is affected more by strong crosswinds
R demands more sensitive steering
R consumes more fuel
On long and steep downhill gradients, you
must shift to a lower gear in good time, or on
vehicles with automatic transmission, select
the shift range 1,2or 3.
i This also applies if you have activated
cruise control, SPEEDTRONIC or DIS-
TRONIC PLUS.
This will use the braking effect of the engine,
so less braking will be required to maintain
the speed. This relieves the load on the brake
system and prevents the brakes from over-
heating and wearing too quickly. If you need
additional braking, depress the brake pedal
repeatedly rather than continuously. 216
Towing
atrailerDriving an d parking

i
You may wish to deactivate ESP ®
(Y page 75) when pulling away with snow
chains fitted. This way you can allow the
wheels to spin in a controlled manner, ach-
ieving an increased driving force (cutting
action). Tyre pressure
Tyre pressure specifications
You will find a table of tyre pressures for var-
ious operating conditions on the inside of
your vehicle's fuel filler flap.
Operation with emergency spare wheel:
the applicable value for the emergency spare
wheel is stated on the spare wheel and in the
technical data section.
Operation with a trailer: the applicable
value for the rear tyres is the maximum tyre
pressure value stated on the table inside the
fuel filler flap.
The table inside the fuel filler flap may state
tyre pressures for differen tload conditions.
These are defined in the table as different
numbers of passengers and amounts of lug-
gage. The actual number of seats may vary –
for more information, please refer to the vehi-
cle's registration documents.
If no other data is stated, the tyre pressures
specified on the fuel filler flap apply for all
tyres approved for this vehicle. If a tyre size precedes a tyre pressure, the tyre
pressure information following is only valid
for that tyre size. G
WARNING
Tyre pressure that is either too high or too low
has a negative effect on the vehicle's driving
safety, which could lead you to cause an acci-
dent. Therefore, you should regularly check
the pressure of all the tyres, particularly prior
to long trips, and correc tthe pressure as nec-
essary.
To test tyre pressure, use a suitable pressure
gauge. The outer appearance of a tyre does
not permit any reliable conclusion about the
tyre pressure. On vehicles fitted with the elec-
tronic tyre pressure monitor, the tyre pres-
sure can be checked using the on-board com-
puter. G
WARNING
Do not fit anything else to the tyre valve other
than the standard valve cap. In particular, ret-
rofitted tyre pressure monitors which are
screwed on to the valve may overload it and
cause it to fail. Due to their design, the valve
is kept open continuously,w hich may lead to
air loss. G
WARNING
Should the tyre pressure drop repeatedly:
R check the tyre for foreign bodies.
R check whether the wheel is losing air or the
valve is leaking.
R make sure that only a valve cap approved
by Mercedes-Benz is fitted on the tyre
valve.
Tyre pressures that are too low have a nega-
tive effect on vehicle safety, which could lead
you to cause an accident.
If possible, only correct tyre pressures when
the tyres are cold.
The tyres are cold:
R if the vehicle has been parked with the tyres
out of direct sunlight for at least three
hours and
R if the vehicle has not been driven further
than 1.6 km Tyre pressure
361Wheels and tyres Z

Useful information
............................376
Notes on the technical data .............376
Genuine Mercedes-Benz parts .........376
Vehicle electronics ...........................377
Vehicle identification plates ............379
Service products and capacities .....379
Vehicle data ...................................... 384
Boot lid and tailgate opening
dimensions ........................................ 386
Trailer tow hitch ................................ 387
24-GHz radar sensor system (coun-
tryo verview) ..................................... 389 375Technical data

Useful information
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviations are possible. Please
note that your vehicle may not be equipped
with all features described. This also
applies to safety-relevan tsystems and
functions.
i Please read the information on qualified
specialist workshops (Y page 28).Notes on the technical data
You can find technical data on the Internet at:
http://www.mercedes-benz.com
i The technical data was determined in
accordance with EC Directives. All data
applies to the vehicle's standard equip-
ment. Therefore, the data may differ for
vehicles with optional equipment. You can
obtain further information from a
Mercedes-Benz Service Centre. Genuine Mercedes-Benz parts
Mercedes-Ben ztests genuine parts and con-
version parts and accessories which have
been specifically approved for your vehicle for
their reliability, safety and suitability. Despite
ongoing market research, Mercedes-Benzis
unable to evaluate other parts. Mercedes-
Ben ztherefore accepts no responsibility for
the use of such parts in Mercedes-Ben zvehi-
cles, even if they have been independently or
officially approved.
In Germany and some other countries, certain
parts are only officially approved for installa-
tion or modification if they comply with legal
requirements. All genuine Mercedes-Benz
parts meet this requirement .The use of non- approved parts may invalidate the vehicle's
general operating permit. This is the case if:
R
they cause a change of the vehicle type
from that for which the vehicle's general
operating permit was granted.
R other road users could be endangered.
R the emission or noise levels are adversely
affected. G
WARNING
Driving safety may be impaired if non-
approved parts, tyres and wheels or safety-
relevant accessories are used.
This could lead to malfunctions in safety-rel-
evant systems, e.g. the brake system. This
could cause you to lose control of your vehicle
and cause an accident.
For this reason, Mercedes-Ben zrecommends
that you use genuine Mercedes-Benz parts or
parts of equal quality. Only use tyres, wheels
and accessories that have been specifically
approved for your vehicle.
! Airbags and seat belt tensioners, as well
as control units and sensors for these
restraint systems may be installed in the
following areas of your vehicle:
R doors
R door pillars
R door sills
R seats
R dashboard
R instrument cluster
R centre console
Do not install accessories such as audio
systems in these areas. Do not carry out
repairs or welding. You could impair the
operating efficiency of the restraint sys-
tems.
Have aftermarket accessories installed at
a qualified specialist workshop. Mercedes-
Benz recommends that you use a
Mercedes-Benz Service Centre for this pur-
pose. 376
Genuine Mercedes-Benz partsTechnical data

H
Environmental note
Daimler AG also supplies reconditioned
assemblies and parts which are of the same
quality as new parts. For these, the same war-
ranty applies as for new parts.
Always specify the vehicle identification num-
ber (VIN) (Y page 379) and the engine num-
ber (Y page 379) when ordering genuine
Mercedes-Ben zparts. Vehicle electronics
Tampering with the engine electron-
ics
G
WARNING
Only have work on the engine electronics and
related components carried out at a qualified
specialist workshop which has the necessary
specialist knowledge and tools to carry out
the work required. Mercedes-Benz recom-
mends that you use a Mercedes-Ben zService
Centre for this purpose. In particular, work
relevant to safety or on safety-related sys-
tems must be carried out at a qualified spe-
cialist workshop. Otherwise, the vehicle's
roadworthiness could be affected.
! Only have maintenance work on the
engine electronics and its associated parts,
such as control units, sensors and connec-
tor leads, carried out at a qualified special-
ist workshop, e.g. a Mercedes-Benz Service
Centre. Vehicle componentsm ay other-
wise wear more quickly and the vehicle's
operating permit may be invalidated. Retrofitting of two-way radios and
mobile phones (RF transmitters)
Use the Technical Specification
ISO/TS 21609 30
implementation regulation
when retrofitting RF (radio frequency) trans-
mitters. If your vehicle has fittings for two-way radio
equipment, use the power supply or aerial
connections intended for use with the basic
wiring. Be sure to observe the manufacturer's
additional instructions when installing the fit-
tings.
!
Have aftermarket radio frequency trans-
mitting equipmen tinstalled at a qualified
specialist workshop .Mercedes-Benzr ec-
ommends that you use a Mercedes-Benz
Service Centre for this purpose.
The transmission output at the aerial base
must not exceed the maximum values below. Waveband Maximum trans-
mission output
(PEAK)
Short wave
(f < 54 MHz) 100 W
4 m waveband 30 W
2 m waveband 50 W
Trunked radio/Tetra 35 W
70 cm waveband 35 W
GSM 900/AMPS 10 W
GSM 1800 10 W
UMTS 10 W
The following aerial positions may be used if
RF transmitters have been properly installed:
30 ISO/TS 2160 9–Technical Specification for Road Vehicles (EMC) guidelines for installation of aftermarket
radio frequency transmitting equipment. Vehicle electronics
377Technical data Z

Saloon
:
Front roof area 31, 32
; Rear roof area 32
= Rear wing 33
? Boot lid Estate
:
Front roof area 31, 32
; Rear roof area
= Rear wing 33 G
WARNING
Incorrect retrofitting of RF transmitters can
cause the vehicle electronics to malfunction.
The vehicle's operating safety and thus your
ow ns afety are impaired.
Have aftermarket radio frequency transmit-
ting equipment installed at a qualified spe-
cialis tworkshop. Mercedes-Benz recom-
mends that you use a Mercedes-Benz Service
Centre for this purpose. G
WARNING
Incorrect retrofitting of RF transmitters can
lead to increased electromagnetic radiation in
the vehicle interior. Using an exterior aerial
takes into account current scientific discus-
sions relating to the possible health hazards
that may result from electromagnetic fields.
Have aftermarket radio frequency transmit-
ting equipment installed at a qualified spe-
cialist workshop. Mercedes-Benz recom-
mends that you use a Mercedes-Benz Service
Centre for this purpose.
Deviations with respect to aerial locations,
output and frequencies must be approved by
Mercedes-Benz.
There is no restriction for aerial positions in
the outer area of the vehicle for these wave-
bands: trunked radio/Tetra, 70 cm wave-
band, GSM 900/AMPS, GSM 1800 and
UMTS.
Legal provisions for fittings must be
observed.
RF transmitters with a maximum transmis-
sion output of 100 mW (PEAK) may be used
in the vehicle without restrictions.
! The operating permit may be invalidated
if the instructions for installation and use of
RF transmitters are not observed, e.g.
approved wavebands, maximum output
and aerial positions on the vehicle.
31 Vehicles with a sliding sunroof: observe the roof's sweep.
32 Vehicles with a panorama sliding sunroof: this area is not permitted.
33 Recommended installation position: on the side which faces the centre of the road. 378
Vehicle electronicsTechnical data