brake MERCEDES-BENZ C-Class COUPE 2015 CL205 Repair Manual

safe maneuvering, parking and exiting a park-
ing space. When maneuvering, parking or
pulling out of a parking space, make sure that there are no persons, animals or objects in
the area in which you are maneuvering.
! When parking, pay particular attention to
objects above or below the sensors, such
as flower pots or trailer drawbars. PARK-
TRONIC does not detect such objects when they are in the immediate vicinity of the
vehicle. You could damage the vehicle or
the objects.
The sensors may not detect snow and other
objects that absorb ultrasonic waves.
Ultrasonic sources such as an automatic
car wash, the compressed-air brakes on a
truck or a pneumatic drill could cause
PARKTRONIC to malfunction.
PARKTRONIC may not function correctly on uneven terrain.
PARKTRONIC is activated automatically when you:
R switch on the ignition
R shift the transmission to position D,Ror N
R release the parking brake
PARKTRONIC is deactivated at speeds above
11 mph (18 km/h). It is reactivated at lower
speeds. 0043
Sensors in the front bumper, left-hand
side (example) Range of the sensors General notes
PARKTRONIC does not take objects into con-
sideration that are:
R below the detection range, e.g. people, ani-
mals or objects
R above the detection range, e.g. overhang-
ing loads, truck overhangs or loading ramps
The sensors must be free from dirt, ice or
slush. They can otherwise not function cor-
rectly. Clean the sensors regularly, taking
care not to scratch or damage them
(Y page 281). Side view
Top view
Front sensors Center Approx. 40 in (approx.
100 cm)
Corners Approx. 24 in (approx.
60 cm)172
Driving systemsDriving and parking

0043
Active Lane Keeping Assist camera
If you select km
kmon the on-board computer in
the Display Unit Speed-/Odometer
Display Unit Speed-/Odometer func-
tion (Y page 201), Lane Keeping Assist is
active starting at a speed of 60 km/h. If the
miles
miles display unit is selected, the assistance
range begins at 40 mph.
A warning may be given if a front wheel
passes over a lane marking. It will warn you by
means of intermittent vibration in the steer-
ing wheel for up to 1.5 second s.
Im portant safety notes
If you fail to adapt your driving style, Lane
Keeping Assist can neither reduce the risk of
an accident nor override the laws of physics. Lane Keeping Assist cannot take into accountthe road, traffic and weather conditions. Lane
Keeping Assist is merely an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane. G
WARNING
Lane Keeping Assist may not always clearly
recognize lane markings.
In this case, Lane Keeping Assist may:
R give an unnecessary warning
R not give a warning
There is a risk of an accident.
Always pay particular attention to the traffic
situation and stay in lane, in particular if
warned by Lane Keeping Assist. G
WARNING
The Lane Keeping Assist warning does not
return the vehicle to the original lane. There is a risk of an accident.
You should always steer, brake or accelerate
yourself, in particular if warned by Lane Keep-ing Assist.
The Lane Keeping Assist does not keep the
vehicle in the lane.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray
R there is glare, e.g. from oncoming traffic,
the sun or reflections (e.g. when the road
surface is wet)
R the windshield is dirty, fogged up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera
R there are no, several or unclear lane mark-
ings for a lane, e.g. in areas with road con- struction work
R the lane markings are worn away, dark or
covered up, e.g. by dirt or snow
R the distance to the vehicle in front is too
small and the lane markings thus cannot be
detected
R the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge
R the road is narrow and winding
R there are strong shadows cast on the lane
Switching on Lane Keeping Assist X Switch on Active Lane Keeping Assist using
the on-board computer; to do so, select
Standard
Standard orAdaptive Adaptive (Ypage 200).
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected, the lines in the assistance graphics display(Y page 199) are shown in green. Lane
Keeping Assist is ready for use. 182
Driving systemsDriving and parking

Standard
If
Standard Standard is selected, no warning vibration
occurs if:
R you switch on the turn signals. In this event,
the warnings are suppressed for a certain
period of time.
R a driving safety system intervenes, such as
ABS, BAS or ESP ®
.
Adaptive
When Adaptive Adaptive is selected, no warning vibra-
tion occurs if:
R you switch on the turn signals. In this event,
the warnings are suppressed for a certain
period of time.
R a driving safety system intervenes, e.g.
ABS, BAS or ESP ®
.
R you accelerate hard, e.g. kickdown.
R you brake hard.
R you steer actively, e.g. swerve to avoid an
obstacle or change lanes quickly.
R you cut the corner on a sharp bend.
In order that you are warned only when nec-
essary and in good time if you cross the lane
marking, the system recognizes 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 high-
way.
R the system recognizes solid lane markings.
The warning vibration occurs later if:
R the road has narrow lanes.
R you cut the corner on a bend. Active Driving Assistance package
General notes The Active Driving Assistance package con-
sists of DISTRONIC PLUS (Y
page 160), Active
Blind Spot Assist (Y page 183) and Active
Lane Keeping Assist (Y page 186). Active Blind Spot Assist General notes
Active Blind Spot Assist uses a radar sensor
system to monitor the side areas of your vehi-
cle which are behind the driver. A warning
display in the exterior mirrors draws your
attention to 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 warning. If a risk of lateral collision is detected, correc-
tive braking may help you avoid a collision. To support the course-correcting brake applica-
tion, Active Blind Spot Assist uses the
forward-facing radar sensor system. The free
space is then evaluated in the direction of
travel and to the side before a course-cor-
recting brake application is initiated.
Active Blind Spot Assist supports you from a
speed of approximately 20 mph (30 km/h).
For Active Blind Spot Assist to assist you
when driving, the radar sensor system must
be operational.
Important safety notes
Active Blind Spot Assist is only an aid. It does not detect all traffic situations and road usersand is no substitute for attentive driving.
Always ensure that there is sufficient dis-
tance to the side for other road users and
obstacles. G
WARNING
Active Blind Spot Assist does not react to:
R vehicles overtaken too closely on the side,
placing them in the blind spot area
R vehicles which approach with a large speed
differential and overtake your vehicle
As a result, Active Blind Spot Assist may nei-
ther give warnings nor intervene in such sit-
uations. There is a risk of an accident.
Always observe the traffic conditions care-
fully, and maintain a safe lateral distance.
i USA only: Driving systems
183Driving and parking Z

the bumpers, have the function of the sensors
checked at a qualified specialist workshop.
Blind Spot Assist may otherwise not work
properly.
Indicator and warning display
Active Blind Spot Assist is not active at
speeds below approximately 20 mph
(30 km/h). Vehicles in the monitoring range
are then not indicated. 0043
Yellow indicator lamp/red warning lamp
When Active Blind Spot Assist is activated,
indicator lamp 0043in the exterior mirrors lights
up yellow at speeds of up to 20 mph
(30 km/h). At speeds above 20 mph
(30 km/h), the indicator lamp goes out and
Active Blind Spot Assist is operational.
If a vehicle is detected within the blind spot
monitoring range at speeds above 20 mph
(30 km/h), warning lamp 0043on 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 7 mph (12 km/h).
The yellow indicator lamp goes out if reverse gear is engaged. In this event, Active Blind
Spot Assist is no longer active.
The brightness of the indicator/warning
lamps is adjusted automatically according to
the ambient light. Visual and acoustic collision warning
When you switch on the turn signals to
change lanes and a vehicle is detected in the
side monitoring range, you receive a visual
and acoustic collision warning. You then hear
a double warning tone and red warning
lamp 0043flashes. If the turn signal remains on,
detected vehicles are indicated by the flash-
ing of red warning lamp 0043. There are no fur-
ther warning tones.
Course-correcting brake application G
WARNING
A course-correcting brake application cannot always prevent a collision. There is a risk of an
accident.
Always steer, brake or accelerate yourself,
especially if Active Blind Spot Assist warns
you or makes a course-correcting brake appli-
cation. Always maintain a safe distance at the sides.
In very rare cases, the system may make an
inappropriate brake application. An inappro-
priate brake application may be interrupted at any time if you steer slightly in the opposite
direction or accelerate.
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 meant to assist you in avoiding a
collision.
The course-correcting brake application is
available in the speed range between 20 mph (30 km/h) and 120 mph (200 km/h).
If a course-correcting brake application
occurs, red warning lamp 0043flashes in the
exterior mirror and the following is shown in
the multifunction display, for example: Driving systems
185Driving and parking Z

Either a very slight course-correcting brake
application, or none at all, may occur if:
R there are vehicles or obstacles, e.g. crash
barriers, located on both sides of your vehi-
cle.
R a vehicle approaches you too closely at the
side.
R you have adopted a sporty driving style with
high cornering speeds.
R you clearly brake or accelerate.
R a driving safety system intervenes, e.g.
ESP ®
or PRE-SAFE ®
Brake.
R ESP ®
is switched off.
R a loss of tire pressure or a defective tire is
detected.
Switching on Active Blind Spot Assist X Make sure that Active Blind Spot Assist
(Y page 200) is activated in the on-board
computer.
X Turn the SmartKey to position 2in the igni-
tion lock.
Warning lamps 0043in the exterior mirrors
light up red for approximately 1.5 seconds
and then turn yellow.
Active Lane Keeping Assist General notes
Active Lane Keeping Assist monitors the area
in front of your vehicle by means of camera 0043
mounted at the top of the windshield. Active
Lane Keeping Assist detects lane markings on
the road and warns you before you leave your
lane unintentionally. If you do not react to the warning, a lane-correcting application of the
brakes can bring the vehicle back into the
original lane. 0043
Active Lane Keeping Assist camera
If you select km kmon the on-board computer in
the Display Unit Speed-/Odometer
Display Unit Speed-/Odometer func-
tion (Y page 201), Active Lane Keeping Assist
is activated starting at a speed of 60 km/h. If
the miles
miles display unit is selected, the assis-
tance range begins at 40 mph.
Important safety notes
If you fail to adapt your driving style, Active
Lane Keeping Assist can neither reduce the
risk of accident nor override the laws of phys-
ics. Lane Keeping Assist cannot take into
account the road, traffic and weather condi-
tions. Lane Keeping Assist is merely an aid.
You are responsible for the distance to the
vehicle in front, for vehicle speed, for braking in good time and for staying in your lane.
Active Lane Keeping Assist cannot continu-
ously keep your vehicle in its lane. G
WARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
In such cases, Active Lane Keeping Assist
can:
R give an unnecessary warning and then
make a course-correcting brake application
to the vehicle
R not give a warning or intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep within the lane, especially
if Active Lane Keeping Assist alerts you. Ter-
minate the intervention in a non-critical driv-
ing situation. 186
Driving systemsDriving an
d parking

The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray
R there is glare, e.g. from oncoming traffic,
the sun or reflections (e.g. when the road
surface is wet)
R the windshield is dirty, fogged up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera
R there are no, several or unclear lane mark-
ings for a lane, e.g. in areas with road con- struction work
R the lane markings are worn away, dark or
covered up, e.g. by dirt or snow
R the distance to the vehicle in front is too
small and the lane markings thus cannot be
detected
R the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge
R the road is narrow and winding
R there are highly variable shade conditions
on the roadway
R no vehicle is detected in the adjacent lane
and there are broken lane markings
Warning vibration in the steering wheel
A warning may be given if a front wheel
passes over a lane marking. It will warn you by means of intermittent vibration in the steer-
ing wheel for up to 1.5 seconds.
In order that you are warned only when nec-
essary and in good time if you cross the lane
marking, the system recognizes 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 high-
way.
R the system recognizes solid lane markings. The warning vibration occurs later if:
R the road has narrow lanes.
R you cut the corner on a bend.
Lane-correcting brake application G
WARNING
A lane-correcting brake application cannot
always bring the vehicle back into the original lane. There is a risk of an accident.
Always steer, brake or accelerate yourself,
especially if Active Lane Keeping Assist warns
you or makes a lane-correcting brake appli-
cation. G
WARNING
Active Lane Keeping Assist does not detect
traffic conditions or road users. In very rare
cases, the system may make an inappropriate brake application, e.g. after intentionally driv-
ing over a solid lane marking. There is a risk of an accident.
An inappropriate brake application may be
interrupted at any time if you steer slightly in
the opposite direction. Always make sure that
there is sufficient distance on the side for
other traffic or obstacles.
If you leave your lane, under certain circum-
stances the vehicle will brake briefly on one
side. This is meant to assist you in bringing
the vehicle back to the original lane.
This function is available in the range between
40 mph and 120 mph (60 km/h and
200 km/h).
A lane-correcting brake application can only
be made after driving over a solid, recogniz-
able lane marking. Before this, a warning
must be given by means of intermittent vibra-
tion in the steering wheel. In addition, a lane
with lane markings on both sides must be
recognized. The brake application also
slightly reduces vehicle speed.
If a lane-correcting brake application occurs, the following, for example, appears in the
multifunction display: Driving systems
187Driving and parking Z

i
A further lane-correcting brake applica-
tion can only occur after your vehicle has
returned to the original lane.
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, e.g.
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 ESP ®
is switched off.
R the transmission is not in position D.
R a loss of tire pressure or a defective tire has
been detected and displayed.
Active Lane Keeping Assist does not detect
traffic situations or road users. An inappro-
priate brake application may be interrupted at
any time if you:
R steer slightly in the opposite direction
R you have switched on the turn signals
R clearly brake or accelerate
A lane-correcting brake application is inter-
rupted automatically if:
R a driving safety system intervenes, e.g.
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist.
R lane markings can no longer be recognized. Switching on Active Lane Keeping Assist
X Switch on Active Lane Keeping Assist using
the on-board computer; to do so, select
Standard
Standard orAdaptive Adaptive (Ypage 200).
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected,
the lines in the assistance graphics display (Y page 199) are shown in green. Lane
Keeping Assist is ready for use.
If Standard
Standard is selected, no warning vibra-
tion occurs if:
R you have switched on the turn signals. In
this event, the warnings are suppressed
for a certain period of time.
R a driving safety system intervenes, such
as ABS, BAS or ESP ®
.
When Adaptive
Adaptive is selected, no warning
vibration occurs if:
R you have switched on the turn signals. In
this event, the warnings are suppressed
for a certain period of time.
R a driving safety system intervenes, e.g.
ABS, BAS or ESP ®
.
R you accelerate hard, e.g. kickdown.
R you brake hard.
R you steer actively, e.g. swerve to avoid an
obstacle or change lanes quickly.
R you cut the corner on a sharp bend. 188
Driving systemsDriving an
d parking

Rejecting or ending a call
X
Press the 0076button on the steering
wheel.
You can end or reject a call even if you are not
in the Tel
Tel menu.
Dialing an entry from the phone book X
Press the 0059or0065 button on the steer-
ing wheel to select the Tel
Telmenu.
X Press the 0063,0064or0076 button to
switch to the phone book.
X Authorize access to the phone book on the
phone.
X Press the 0063or0064 button to select the
desired name.
or
X To begin rapid scrolling: press and hold
the 0063 or0064 button for longer than
one second.
Rapid scrolling stops when you release the
button or reach the end of the list.
X If only one telephone number is stored
for a name: press the0061or0076 button
to start dialing.
or
X If there is more than one number for a
particular name: press the0061or0076
button to display the numbers.
X Press the 0063or0064 button to select the
number you want to dial.
X Press the 0061or0076 button to start dial-
ing.
or X To exit the telephone book: press the
0076 or0038 button.
Redialing The on-board computer saves the last names
or numbers dialed in the redial memory. X
Press the 0059or0065 button on the steer-
ing wheel to select the Tel Telmenu.
X Press the 0061button to switch to the
redial memory.
X Press the 0063or0064 button to select the
desired name or number.
X Press the 0061or0076 button to start dial-
ing.
or X If you do not want to make a call: press
the 0076 or0038 button. Assistance menu
Introduction In the
DriveAssist DriveAssist menu, you have the fol-
lowing options:
R Displaying the assistance graphic
(Y page 199)
R Activating/deactivating ESP ®
(Y page 199)
R Activating/deactivating PRE-SAFE ®
Brake
(Y page 199)
R Activating/deactivating ATTENTION
ASSIST (Y page 200)
R Activating/deactivating Blind Spot Assist
or Active Blind Spot Assist (Y page 200)
R Activating/deactivating Lane Keeping
Assist or Active Lane Keeping Assist
(Y page 200) 198
Menus and submenusOn-board computer and displays

Displaying the assistance graphic
X
Press the 0059or0065 button on the steer-
ing wheel to select the Assist.
Assist.menu.
X Press 0063or0064 to select Assist.
Assist.
graphic
graphic.
X Press the 0076button.
The multifunction display shows the DIS-
TRONIC PLUS distance display in the assis- tance graphic.
The assistance graphic displays the status of
and information from the following driving
systems or driving safety systems:
R DISTRONIC PLUS (Y page 165)
R ATTENTION ASSIST (Y page 179)
R Lane Keeping Assist (Y page 181) or Active
Lane Keeping Assist (Y page 186)
R PRE-SAFE ®
Brake (Y page 70)
Deactivating/activating ESP ®i
Observe the "Important safety notes" sec-
tion in the description of ESP (Y page 66).G
WARNING
If you deactivate ESP ®
, ESP ®
no longer sta-
bilizes the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP ®
in the situations descri-
bed in the following. It may be best to deactivate ESP
®
in the fol-
lowing situations:
R when using snow chains
R in deep snow
R on sand or gravel
Activating/deactivating ESP ®
on AMG vehi-
cles (Y page 68).
For further information about ESP ®
, see
(Y page 66).
X Start the engine.
X Press the 0059or0065 button on the steer-
ing wheel to select the DriveAssist
DriveAssist menu.
X Press the 0063or0064 button to select
ESP ESP .
X Press the 0076button.
X To deactivate: press0076again.
The 00BB warning lamp in the instrument
cluster lights up.
X To activate: press0076again.
The 00BB warning lamp in the instrument
cluster goes out.
ESP ®
is deactivated if the 00BBwarning lamp
in the instrument cluster lights up continu-
ously when the engine is running.
If the 00E5 warning lamp and the 00BBwarn-
ing lamp are lit continuously, ESP ®
is not
available due to a malfunction.
Observe the information on warning lamps
(Y page 237).
Observe the information on display messages
(Y page 209).
Activating/deactivating PRE-SAFE ®
Brake PRE
‑SAFE ®
Brake is only available in vehicles
with DISTRONIC PLUS.
X Press the 0059or0065 button on the steer-
ing wheel to select the DriveAssist DriveAssistmenu.
X Press the 0063or0064 button to select
PRE-SAFE Brake
PRE-SAFE Brake. Menus and submenus
199On-boardcompu ter and displays Z

X
Press the 0076button.
The current selection is displayed.
X To activate/deactivate: press the0076
button again.
When PRE-SAFE ®
Brake is deactivated, the
assistance graphic shows the 00D4symbol
in the multifunction display.
If the PRE-SAFE Brake: Sensors Deacti‐
PRE-SAFE Brake: Sensors Deacti‐
vated
vated message appears, the radar sensor
system is deactivated.
X Switch on the radar sensor system
(Y page 203).
For more information on PRE‑SAFE ®
Brake,
see (Y page 70).
Activating/deactivating ATTENTION
ASSIST X
Press the 0059or0065 button on the steer-
ing wheel to select the DriveAssist
DriveAssist menu.
X Press the 0063or0064 button to select
Attention Assist
Attention Assist.
X Press the 0076button.
The current selection is displayed.
X To activate/deactivate: press the0076
button again.
When ATTENTION ASSIST is deactivated,
the 00D7 symbol appears in the multifunc-
tion display in the assistance graphics dis-
play.
For further information about ATTENTION
ASSIST, see (Y page 179).
Activating/deactivating Blind Spot
Assist X
Press the 0059or0065 button on the steer-
ing wheel to select the DriveAssist
DriveAssist menu.
X Press the 0063or0064 button to select
Blind Spot Assist Blind Spot Assist.
X Press the 0076button.
The current selection is displayed.
X To activate/deactivate: press the0076
button again. If the
Blind Spot Assist Sensors Deac‐
Blind Spot Assist Sensors Deac‐
tivated
tivated orAct. Blind Spot Asst. Sen‐
Act. Blind Spot Asst. Sen‐
sors Deactivated
sors Deactivated message appears, the
radar sensor system is deactivated.
X Switch on the radar sensor system
(Y page 203).
For further information about Blind Spot
Assist, see (Y page 179).
For further information about Active Blind
Spot Assist, see (Y page 183).
Activating/deactivating Lane Keeping
Assist X
Press the 0059or0065 button on the steer-
ing wheel to select the DriveAssist DriveAssistmenu.
X Press the 0063or0064 button to select
Lane Keep. Asst.
Lane Keep. Asst.
X Press the 0076button.
The current selection is displayed.
X Press 0076to confirm.
X Press the 0064or0063 button to set Off
Off,
Standard
Standard orAdaptive
Adaptive.
X Press the 0076button to save the setting.
When Lane Keeping Assist or Active Lane
Keeping Assist is activated, the multifunc-
tion display shows the lane markings as
bright lines in the assistance graphic.
For further information about Lane Keeping
Assist, see (Y page 181).
For further information about Active Lane
Keeping Assist, see (Y page 186). Maintenance menu
In the
Service Service menu, you have the following
options: 200
Menus and submenusOn-board computer and displays