2011 MERCEDES-BENZ C-CLASS SALOON transmission

Parking Guidance will only detect parking
spaces:
R
that are parallel to the direction of travel
R that are at least 1.5 m wide
R that are at least 1.3 m longer than your
vehicle
Ap arking space is displayed while you are
driving past it, and until you are approx-
imately 15 m away from it.
Parking G
WARNING
PARKTRONIC and Parking Guidance are
merely parking aids and may no tdetec tall
obstacles. They do not relieve you of the
responsibility of paying attention.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring. You could otherwise endanger
yourself and others.
X Stop the vehicle when the parking space
symbol shows the desired parking space in
the instrument cluster.
X Vehicles with manual transmission :shift to
reverse gear.
Vehicles with automatic transmission: shift
into position R.
The following message appears in the mul-
tifunction display: Check vehicle sur‐ roundings Confirm with OK .
X Press the abutton on the multifunction
steering wheel to confirm.
The multifunction display switches to Park-
ing Guidance.
Depending on your distance from the park-
ing space, the Please drive backwards message appears in the multifunction dis-
play. Example: vehicles with automatic transmission
X
If necessary, reverse towards the parking
space. This is indicated by an arrow point-
ing backwards.
Continue reversing until you hear a tone.
Stop –the parking position has been
reached. The arrow is white.
The Please steer to the right or
Please steer to the left message
appears in the multifunction display. Example: vehicles with automatic transmission
X
While the vehicle is stationary, turn the
steering wheel in the specified direction
until the arrow is white and a warning tone
sounds.
X To reverse into the parking space: main-
tain the steering wheel angle and reverse
carefully.
X Stop as soon as you hear a warning tone.
The vehicle has reached the position in
which you need to countersteer.
The Please steer to the left or
Please steer to the right message
appears in the multifunction display.
X Countersteering: while the vehicle is sta-
tionary, turn the steering wheel in the
specified direction until the arrow is white
and a warning tone sounds. Driving systems
201Driving and parking Z

R
if the time has been set incorrectly
R in active driving situations, such as when
you change lanes or change your speed
Warning and display messages in the
multifunction display Example: vehicles with automatic transmission
X
Activate ATTENTION ASSIST using the on-
board computer (Y page 238).
Symbol :appears in the multifunction
display.
If ATTENTION ASSIST is active, you will be
warned no sooner than 20 minutes after your
journey has begun. You will the nhear an
intermittent warning tonet wice, and the
Attention Assist: Drowsiness detec‐ ted message appears in the multifunction
display.
X If necessary, take a break.
X Press the abutton to confirm th emes-
sage.
On long journeys, take regular breaks in good
time to allow yourself to rest properly. If you
do not take a break and ATTENTION ASSIST
still detects typical indicators of fatigue or
increasing lapses in concentration, you will be
warned again after 15 minutes at the earliest.
ATTENTION ASSIST is reset and starts
assessing your tiredness again when you con-
tinue your journey if:
R you switch off the engine.
R you take off your seat belt and open the
driver's door, e.g. for a change of drivers or
to take a break. Speed Limit Assist
Important safety notes Speed Limit Assist shows you detected speed
limits in the multifunction display. Data from
the navigation system is also used for this
purpose. The display appears if a traffic sign
indicating a speed limit or the end of a speed
limit is detected. If Speed Limit Assist does
not detec tany traffic signs, the speed limit
from the digital road ma pis taken and shown
in the display.
Speed Limit Assist detects the traffic signs
with a camera attached behind the top of the
windscreen. :
Speed Limit Assist camera G
WARNING
Speed Limit Assist is only an aid and may
detect speed limit signs incorrectly or not at
all.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to snow,
rain, fog or spray.
R there is glare, e.g. from the sun or from
oncoming traffic.
R the windscreen is dirty, misted up or cov-
ered, for instance by a sticker, in the vicinity
of the camera.
R the traffic signs are covered, for instance
by dirt, snow or trees. 204
Driving systemsDriving and parking

In order that you are warned only when nec-
essary and in good time if you cross the lane
marking, the system recognises certain con-
ditions and warns you accordingly.
The warning vibration occurs earlier if:
R you approach the outer lane marking on a
bend.
R the road has very wide lanes, e.g. a motor-
way.
R the system recognises solid lane markings.
The warning vibration occurs later if:
R the road has narrow lanes.
R you cut the corner on a bend.
No warning vibration occurs if:
R you clearly and actively steer, brake, or
accelerate.
R you cut the corner on a sharp bend.
R a driving safety system intervenes, such as
ABS, BAS or ESP ®
.
R you have switched on the turn signals. In
this event, the warnings are suppressed for
a certain period of time.
Activating Lane Keeping Assist Example: vehicles with automatic transmission
X
Activate Lane Keeping Assist using the on-
board computer (Y page 238).
Symbol :appears in the multifunction
display.
If you drive at speeds above 60 km/h and
lane markings are detected, symbol :is
shown in green. Lane Keeping Assist is
ready for use. Active Driving Assistance package
General notes The Active Driving Assistance package con-
sists of DISTRONIC PLUS (Y
page 183), Active
Blind Spot Assist (Y page 209) and Active
Lane Keeping Assist (Y page 212).
Active Blind Spot Assist Important safety notes
Active Blind Spot Assist uses a radars
ensor
system to monitor the side areas of your vehi-
cle which are in back of the driver. Awarning
display in the exterior mirrors draws your
attentio nto vehicles detected in the moni-
tored area. If you then switch on the corre-
sponding turn signal to change lane, you will
also receive an optical and audible collision
warning. If a risk of lateral collision is detec-
ted, corrective braking may help you avoid a
collision. To support the course-correcting
brake application, Active Blind Spot Assist
also uses the forward-facing radar sensor sys-
tem. Active Blind Spot Assist supports you
from a speed of approximately 30 km/h. G
WARNING
Active Blind Spot Assist is only an aid and may
detect vehicles/obstacles incorrectly or not
at all.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to snow,
rain, fog or spray.
R the rear and/or front sensors are dirty.
Active Blind Spot Assist may not detect nar-
row vehicles, such as motorcycles or bicycles,
or only detect them too late. It cannot detect
vehicles which are overtaken at a small dis-
tance and then enter the blind spot area.
Active Blind Spot Assist cannot detect road
and traffic conditions. It is not a substitute for
attentive driving. You are responsible for the
vehicle's speed, braking in good time, and
steering correctly. Always adapt your driving Driving systems
209Driving and parking
Z

Indicator and warning display
:
Yellow indicator lamp/red warning lamp
When Active Blind Spo tAssist is activated,
indicator lamp :in the exterior mirrors lights
up in yellow at speeds of up to 30 km/h. At
speeds above 30 km/h, the indicator lamp
goes out and Active Blind Spot Assist is
operational.
If a vehicle is detected within the monitoring
range of Blind Spot Assist at speeds above
30 km/h, warning lamp :on the corre-
sponding side lights up red. This warning is
always emitted when a vehicle enters the
blind spot monitoring range from behind or
from the side. When you overtake a vehicle,
the warning only occurs if the difference in
speed is less than 12 km/h.
The yellow indicator lamp goes out if reverse
gear is engaged. Active Blind Spot Assist is
then no longer active.
The brightness of the indicator/warning
lamps is adjusted automatically according to
the ambient light. G
WARNING
Active Blind Spot Assist is not active at speeds
below 30 km/h. The indicator lamps in the
exterior mirrors are yellow. Vehicles in the
monitoring range are then not indicated.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourselfa nd others. Visual and acoustic collision warning
If you switch on the appropriate turn signals
and a vehicle is detected in the side monitor-
ing range, you will receive a visual and acous-
tic collision warning
.You will hear a double
warning tone and red warning lamp :
flashes. If the turn signal remains on, detec-
ted vehicles are indicated by the flashing of
red warning lamp :. There are no further
warning tones.
Course-correcting brake application
If Active Blind Spot Assist detects a risk of a
lateral collision in the monitoring range, a
course-correcting brake application is carried
out. This is designed to help you avoid a col-
lision.
The course-correcting brake application is
available in the range between 30 km/ha nd
200 km/h.
If a course-correcting brake application
occurs, red warning lamp :flashes in the
exterio rmirro rand the following is shown in
the multifunctio ndisplay, for example: Example: vehicles with automatic transmission
G
WARNING
Active Blind Spot Assist is only an aid
designed to assist driving. It is not a substitute
for attentive driving. Automatic braking by the
system may not always be sufficien tto avoid
a collision. In such cases, you need to steer,
brake or accelerate yourself.
In very rare cases, the system may detect a
risk of collision where there is none and brake
in error near crash barriers or similar road
boundaries. Active Blind Spot Assist cannot
detect all traffic situations and road users.
Ensure at all times that there is sufficient lat-
eral distance between you and other road Driving systems
211Driving and parking
Z

Example: vehicles with automatic transmission
i
A further lane-correcting brake applica-
tion can only occur after your vehicle has
returned to the original lane. G
WARNING
Active Lane Keeping Assist does not keep
your vehicle in its lane. It is only an aid
designed to assist driving .Itis not a substitute
for attentive driving. Corrective braking may
not always be sufficient to return your vehicle
to its original lane. In such cases, you must
steer the vehicle yourselft o ensure that it
does not leave the lane.
Active Lane Keeping Assist cannot detect the
current traffic situation or other road users.
Ensure at all times that there is sufficient lat-
eral distance between you and other road
users or obstacles. In rare cases, broken lines
or certain structures on the road surface may
be detected by the system as solid lane mark-
ings. You can, for example, countersteer gen-
tly at any time to cancel inappropriate braking
action, e.g. if you intentionally drive across a
solid lane marking.
Active Lane Keeping Assist cannot take
weather conditions into account.
You are responsible for the vehicle's speed,
correc tsteering and for braking in good time.
Always adap tyour driving style to suit the
prevailing road and weather conditions.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourself and others. No lane-correcting brake application occurs
if:
R
you clearly and actively steer, brake, or
accelerate.
R you cut the corner on a sharp bend.
R you have switched on the turn signals.
R a driving safety system intervenes, such as
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist.
R you have adopted a sporty driving style with
high cornering speeds or high rates of
acceleration.
R on vehicles with a trailer tow hitch, the
electrical connection to the trailer has been
correctly established.
R ESP ®
is deactivated.
R the transmission is not in position D.
R a loss of tyre pressure or a defective tyre
has been detected and displayed.
Active Lane Keeping Assist does not detect
road and traffic conditions. An inappropriate
brake application may be interrupted at any
time if:
R you steer slightly in the opposite direction.
R you use a turn signal.
R you clearly brake or accelerate.
Al ane-correcting brake applicatio nis inter-
rupted automatically if:
R a driving safety system intervenes, such as
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist.
R lane markings can no longer be recognised.
Activating Active Lane Keeping Assist Example: vehicles with automatic transmission214
Driving systemsDriving and parking

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

X
Pull the ball coupling in the direction of the
arrow until it engages in a vertical position.
Indicator lamp ?goes out. The power
socket folds down automatically.
Vehicles with a4-button multifunction
steering wheel: theTrailer hitch Check lock mech. message is show
nin
the multifunctio ndisplay until the ball cou-
pling has engaged.
Vehicles with a 12-button multifunc-
tion steering wheel: theTrailer hitch
Check lock mech. message is shown in
the multifunction display until the ball cou-
pling has engaged.
X Remove the protective cap fro mthe ball
coupling and store it in a safe place.
X Make sure that the ball of the ball coupling
is clean and that, depending on the trailer
specification, it is greased or dry (without
grease) when used. Coupling up a trailer
G
WARNING
Do not disconnect a trailer with an engaged
overrun brake. Otherwise, your hand could
become trapped between the bumper and
trailer drawbar.
X Make sure that the transmission is in posi-
tion P.
X Apply the parking brake.
X Position the trailer level behind the vehicle.
X Couple up the trailer. X
Establish the electrical connection
between the vehicle and the trailer.
X Check that the trailer lighting system is
working. Decoupling
atrailer G
WARNING
As soon as you raise the trailer drawbar, the
unladen vehicle rises slightly. The vehicle then
lowers to driving level.
Make sure tha tnobody is in the vicinity of the
wheel arch or the underbody. You could oth-
erwise trap yourself or others. G
WARNING
The vehicle is lowered as soon as you discon-
nect the trailer cable. Make sure that nobody
is in the vicinity of the wheel arch or the
underbody. You could otherwise trap yourself
or others.
As soon as you decouple the trailer, the unla-
den vehicle rises slightly. Make sure that you
or others are not injured in the process.
! Do not disconnect a trailer with an
engaged overrun brake. Otherwise, your
vehicle could be damaged by the rebound-
ing of the overrun brake.
X Make sure that the transmission is in posi-
tion P.
X Apply the parking brake.
X Secure the trailer against rolling away.
X Remove the trailer cable and decouple the
trailer. Folding in the ball coupling
i Fold the ball coupling back in if you are
not using the trailer tow hitch. G
WARNING
Make sure that no persons or animals are in
the pivoting range of the ball coupling. Other-
wise, they could be injured. 218
Towing
atrailerDriving an d parking

9
:
Press and hold:
R
In the Audio menu: selects the
previous/next station or selects
an audio track or a video scene
using rapid scrolling
R In the Tel (telephone) menu:
starts rapid scrolling through the
phone book a R
Confirms selection/display mes-
sage
R In the Tel (telephone) menu:
switches to the telephone book
and starts dialling the selected
number
R In the Audio menu: stops the
station search function at the
desired station Right control panel
~ R
Rejects or ends a call
R Exits telephone book/redial
memory 6 R
Makes or accepts a call
R Switches to the redial memory W
X R
Adjusts the volume 8 R
Mute Back button
%
Press briefly:
R
Back
R Switches off LINGUATRONIC
R Hides display messages or calls
up the last Trip menu function
used
R Exits the telephone book/redial
memory %
Press and hold:
R
Calls up the standard display in
the Trip menu
Multifunction display
Values and settings as well as display mes-
sages are shown in the multifunction display. :
Description field
; Menu bar
= Drive program
? Outside temperature or speed
(Ypage 239)
A Transmission position
X To show menu bar ;:press the =
or ; button on the steering wheel.
Vehicles with manual transmission: the
indicators in the lower part of the multifunc-
tion display differ from the display shown
here. 228
Displays and operation (12-button multifunction steering wheel)On-board computer and displays