MERCEDES-BENZ C-CLASS SALOON 2011 Service Manual

i
Instrument cluster: miles Function Page
:
Fuel gauge
;
Coolant temperature 226
=
Speedometer with seg-
ments
227
?
Multifunction display
228 Function Page
A
Rev counter 226
B
Brightness control knob for
the instrument cluster light-
ing: turn clockwise or anti-
clockwise38
Instrument cluster (12-button steering wheel)At a glance

Warning and indicator lamps
Function Page
:
÷
ESP® 295
M
SPORT handling
mode in AMG vehicles 296
;
·
Distance warning 300
=
å
ESP®
OFF 295
?
J
Brakes 293
A
#!
Turn signals 120
B
!
ABS 293
C
6
SRS 297
D
;
Engine diagnostics 298
E
h
Tyre pressure monitor 300
F
7
Seat belt 291 Function Page
G
%
Diesel engine: pre-
glow 155
÷
ESP®
in AMG vehicles 296
H
?
Coolant 298
I
R
Rearfoglamp 119
J
K
Main-beam head-
lamps 120
K
L
Dipped-beam head-
lamps 119
L
N
Front foglamps 119
M
8
Reserve fuel 298Instrument cluster (12-button steering wheel)
39At a glance

Multifunction steering wheel
4-button multifunction steering wheel
Function Page
:
Multifunction display 223
;
Audio system; see the sep-
arate operating instruc-
tions
=
W
Increases the volume
?
X
Decreases the volume
A
C
Scrolls through lists
Changes values
Confirms display messages Function Page
B
V
Press briefly:
Selects a menu
Press and hold:
Selects the standard dis-
play40
Multifunction steering wheelAt a glance

12-button multifunction steering wheel
Function Page
:
Multifunction display 228
;
Audio system/COMAND
Online; see the separate
operating instructions
=
?
Switches on LINGUA-
TRONIC; see the separate
operating instructions
?
~
Rejects or ends a call 235
Exits telephone book/
redial memory
6
Makes or accepts a call
Switches to the redial mem-
ory
WX
Adjusts the volume
8
Mute Function Page
A
=;
Selects a menu 230
9:
Selects the submenu or
scrolls through lists
230
a
Confirms selections and
hides display messages
B
%
Back or deactivates LIN-
GUATRONICMultifunction steering wheel
41At a glance

Centre console
Function Page
:
Audio system/COMAND
Online; see separate oper-
ating instructions
;
c
Seat heating 109
=
s
Seat ventilation 110
?
c
PARKTRONIC 196
A
¤
ECO start/stop but-
ton 156
B
£
Hazard warning
lamps 121
C
4
PASSENGER AIRBAG
OFF indicator lamp 59
D
u
Saloon :rear window
roller sunblind 316
M
Dynamic driving
package with sports mode 192 Function Page
E
&
Auxiliary heating 143
M
Dynamic driving
package with sports mode 192
F
Stowage compartment 302
Ashtray 316
Cigarette lighter 317
Power socket 317
G
Gear lever 160
Selector lever 162
H
Stowage compartment 302
Cup holder 314
I
Stowage compartment 302
J
Audio/COMAND controller
K
Selects the drive program 16342
Centre consoleAt a glance

Overhea
dcontrol panel Function Page
:
u
Switches the rear
interio rlighting on/off 125
;
|
Switches the auto-
matic interior lighting con-
trol on/off 124
=
p
Switches the right-
hand reading lamp on/off 124
?
ë
Deactivates tow-
away protection 81
A
3
Opens/closes the
sliding sunroof 100 Function Page
3
Opens/closes the
panorama sliding sunroof
with roller sunblinds 101
B
Rear-view mirror 112
C
ê
Deactivates the inte-
rior motion sensor 81
D
p
Switches the left-
hand reading lamp on/off 124
E
c
Switches the front
interior lighting on/off 125Overhead control panel
43At a glance

Door control panel
Function Page
:
Opens the door 90
;
%&
Unlocks/locks
the vehicle 90
=
Adjusts the seat electrically 106
?
r45=
Stores settings fo
rthe seat,
exterior mirrors and steer-
ing wheel 115
A
7Zö\
Adjusts and folds the exte-
rior mirrors in/out electri-
cally
112
B
W
Opens/closes the
side windows 97
C
n
Activates/deacti-
vates the override feature
for the side windows in the
rear compartment 72
D
o
Saloon: opens the
boot lid 94
q
Estate with the EASY-
PACK tailgate: opens/
closes the tailgate 9444
Doorc
ontrol panelAt a glance

Useful information
..............................46
Occupant safety .................................. 46
Children in the vehicle ........................57
Driving safet ysystems ....................... 72
Anti-theft systems .............................. 80 45Safety

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).Occupant safety
Important safety notes
Seat belts, together with the Supplemental
Restraint System – SRS (Y page 47), are
complementary, co-ordinated restrain tsys-
tems .They reduce the risk of injury in spe-
cific, pre-defined types of accident situations
and thereby increase occupant safety. How-
ever, seat belts and airbags generally do not
protect against objects penetrating the vehi-
cle from the outside.
To ensure that the restraint systems can
deliver their full potential protection, make
sure that:
R the seat and head restraint are adjusted
properly (Y page 104).
R the seat belt has been fastened properly
(Y page 55).
R the airbags can inflate unrestricted if
deployed (Y page 48).
R the steering wheel is adjusted properly
(Y page 104).
R the restraint systems have not been modi-
fied.
i An airbag increases the protection of
vehicle occupants wearing a seat belt. As
such, they are only an additional restraint
system which complements, but does not
replace, the seat belt. All vehicle occupants must wear their seat belt correctly at all
times, even if the vehicle is equipped with
airbags. The airbags are not deployed in all
types of accidents. For example, if the pro-
tective capacity of correctly fastened seat
belts is not increased by deploying the air-
bags, the airbags will not deploy.A
irbag
deploymen tonly provides increased pro-
tection if the seat belt is worn correctly
because:
R the sea tbelt helps to keep the vehicle
occupan tinthe best position in relation
to the airbag.
R in a head-on collision, for example, the
seat belt prevents the vehicle occupant
from being propelled towards the point
of impact. It can thus reduce the risk of
injury.
In accidents in which an airbag is deployed,
it provides increased protection only if the
seat belt is worn correctly. G
WARNING
If service work is not carried out correctly, the
operating safety of your vehicle may be affec-
ted. This could cause you to lose control of
your vehicle and cause an accident. More-
over, the safety systems may no longer be
able to protect you or others as they are
designed to do.
Always have service work carried out at a
qualified specialist workshop. The workshop
must have the necessary specialist knowl-
edge and tools to carry out the work required.
Mercedes-Ben zrecommends that you use a
Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety or
on safety-related systems must be carried out
at a qualified specialist workshop. 46
Occupant safetySafety

G
WARNING
Modifications to or work performed incor-
rectly on the following parts can result in the
restraint systems not functioning as intended:
R the restraint system, consisting of seat
belts and their anchorage points, beltt en-
sioners, belt force limiters and airbags
R the wiring
R networked electronic systems
Airbags and belt tensioners could fail to
deploy or be triggered in an acciden tdespite
the deceleration force being sufficien tto trig-
ger the systems, or could be triggered unin-
tentionally. For this reason, never make any
modifications to the restraint systems.
Therefore, you must not tamper with elec-
tronic components or their software. SRS (Supplemental Restraint System)
Introduction SRS consists of:
R
the 6 SRS warning lamp
R airbags
R airbag control unit (with crash sensors)
R belt tensioners
R belt force limiters
SRS reduces the risk of occupants coming
into contact with the vehicle's interior in the
event of an accident. It can also reduce the
effect of the forces to which occupants are
subjected during an accident.
SRS warning lamp SRS functions are checked regularly when
you switch on the ignition and when the
engine is running. Therefore, malfunctions
can be detected in good time.
The 6 SRS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out no later than a few seconds
after the engine is started. G
WARNING
If SRS is malfunctioning, individual systems
may be activated unintentionally or may not
be triggered in the event of an accident with
a high rate of vehicle deceleration.
A malfunction has occurred if:
R the 6 SRS warning lamp does not light
up when the ignition is switched on.
R the engine is running and the 6SRS
warning lamp does not go out after a few
seconds.
R the engine is running and the 6SRS
warning lamp lights up again.
In this case, have SRS checked immediately
at a qualified specialist workshop. Mercedes-
Benz recommends that you use a Mercedes-
Benz Service Centre for this purpose.
In particular, work relevant to safety or on
safety-related systems must be carried out at
a qualified specialist workshop.
Triggering of belt tensioners, belt force
limiters and airbags During the first stage of a collision, the airbag
control unit evaluates important physical
data relating to vehicle deceleration or accel-
eration, such as:
R
duration
R direction
R magnitude
Based on the evaluation of this data, the air-
bag control unit pre-emptively triggers the
belt tensioners in the first stage.
i The front belt tensioners can only be trig-
gered if the seat belt tongues on the front
seats are correctly engaged in the seat belt
buckles.
If there is an even higher rate of vehicle decel-
eration or acceleration in a longitudinal direc-
tion, the front airbags are also deployed.
Your vehicle has adaptive, two-stage front air-
bags. The airbag control unit evaluates vehi-
cle deceleration or acceleration in the event Occupant safety
47Safety Z