warning light MERCEDES-BENZ CLS SHOOTING BRAKE 2012 Workshop Manual

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 prevent the
vehicle from gaining speed. This relieves the
load on the brake system and prevents the
brakes from overheating and wearing too
quickly.
Heavy and light loads G
WARNING
The braking system can overheat if you leave
your foot on the brake pedal while driving.
This increases the braking distance and could
even cause the braking system to fail. There
is a risk of an accident.
Never use the brake pedal as a footrest. Do
not simultaneously depress both the brake
pedal and the accelerator pedal while driving.
! Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately, but
drive on for a short while. This allows the air-
flow to cool the brakes more quickly.
If the brakes have been used only moderately,
you should occasionally test their effective-
ness. To do this, brake more firmly from a
higher speed. This improves the grip of the
brakes.
Wet road surfaces If you have driven for a long time in heavy rain
without braking, there may be a delayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has
been washed or driven through deep water.
You have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the vehi-
cle washed, brake firmly while paying atten- tion to the traffic conditions. This will warm
up the brake discs, thereby drying them more
quickly and protecting them against corro-
sion.
Limited braking performance on salt-
treated roads If you drive on salted roads, a layer of salt
residue may form on the brake discs and
brake pads. This can result in a significantly
longer braking distance.
R
Brake occasionally to remove any possible
salt residue. Make sure that you do not
endanger other road users when doing so.
R Carefully depress the brake pedal and the
beginning and end of a journey.
R Maintain a greater distanc eto the vehicle
ahead.
New brake pads/linings New and replaced brake pads and discs only
reach their optimum braking effect after sev-
eral hundred kilometres of driving. Compen-
sate for this by applying greater force to the
brake pedal.
For safety reasons, Mercedes-Benz recom-
mends that you only have brake pads/linings
fitted to your vehicle which have been
approved for Mercedes-Benz vehicles or
which correspond to an equivalent quality
standard. Brake pads/linings which have not
been approved for Mercedes-Benz vehicles or
which are not of an equivalent quality could
affect your vehicle's operating safety.
AMG high-performance and ceramic
brakes
AMG brake systems are designed for heavy
loads. This may lead to noise when braking.
This is dependent on:
R
speed
R braking force
R environmental conditions, such as temper-
ature and humidity Driving tips
169Driving and parking Z

Deactivating cruise control
There are several ways to deactivate cruise
control:
X
Briefly press the cruise control lever for-
wards =.
or
X Brake
or
X Briefly press the cruise control lever in the
direction of arrow ;.
Variable SPEEDTRONIC is selected. LIM
indicator lamp :in the cruise contro llever
lights up.
Cruise control is automatically deactivated if:
R you depress the parking brake.
R you are driving at less than 30 km/h.
R ESP ®
intervenes or you deactivate ESP ®
.
R you shift the transmission to position N
while driving.
If cruise control is deactivated, you will hear
a warning tone. You will see the Cruisecontrol off message in the multifunction
display for approximately five seconds.
i The last speed stored is cleared when you
switch off the engine. SPEEDTRONIC
Important safety notes G
WARNING
Never depress the brake pedal continuously
while the vehicle is in motion, e.g. never cause
the brakes to rub by applying constan tslight
pedal pressure. This causes the brake system
to overheat, increases the braking distance
and can lead to the brakes failing completely. G
WARNING
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. G
WARNING
SPEEDTRONIC is only an aid designed to
assist driving. You are responsible for the
vehicle's speed and for braking in good time.
SPEEDTRONIC brakes automatically so that
you do not exceed the set speed. On long and
steep downhill gradients, especially if the
vehicle is laden or towin gatrailer (CLS Shoot-
ing Brake only), you must select shift range 1,
2 or 3in good time. By doing so, you will make
use of the braking effect of the engine .This
relieves the load on the brake system and
prevents the brakes from overheating and
wearing too quickly. If you need additional
braking, depress the brake pedal repeatedly
rather than continuously.
You can set a variable or permanent limit
speed:
R variable for speed limits, e.g. in built-up
areas
R permanent for long-term speed restric-
tions, e.g. when driving with winter tyres
fitted (Y page 177)
i The speed indicated in the speedometer
may differ slightly from the limit speed
stored. 174
Driving systemsDriving and parking

Variable SPEEDTRONIC
General notes
:
To store the current speed or a higher
speed
; LIM indicator lamp
= To store the current speed and call up the
last stored speed
? To store the current speed or a lower
speed
A To switch between cruise control or DIS-
TRONIC PLU Sand variable SPEEDTRONIC
B To deactivate variable SPEEDTRONIC
With the cruise control lever, you can operate
cruise control or DISTRONIC PLUS and vari-
able SPEEDTRONIC.
The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R LIM indicator lamp off: cruise control or
DISTRONIC PLU Sis selected.
R LIM indicator lamp on: variable SPEED-
TRONIC is selected.
Selecting variable SPEEDTRONIC G
WARNING
If there is a change of drivers, advise the new
driver of the limit speed stored.
Only use variable SPEEDTRONIC if you will not
have to accelerate suddenly to a speed above
that stored as the limit speed. You could oth-
erwise cause an accident. You can only exceed the limit speed stored if
you deactivate variable SPEEDTRONIC:
R
using the cruise control lever
R by depressing the accelerator pedal
beyond the pressure point (kickdown)
It is not possible to deactivate variable
SPEEDTRONIC by braking. X
Check whether LIM indicator lamp :is on.
If it is on, variable SPEEDTRONIC is already
selected.
If it is not, press the cruise control lever in
the direction of arrow ;.
LIM indicator lamp :in the cruise control
lever lights up. Variable SPEEDTRONIC is
selected.
Storing the current speed X
Briefly press the cruise control lever
up : or down ;.
The current speed is stored and shown in
the multifunction display. Driving systems
175Driving and parking Z

The segments in the multifunction display
light up from the start of the scale up to the
stored speed.
You can use the cruise control lever to limit
the speed to any speed above 30 km/hw hile
the engine is running.
Storing the current speed and calling up
the last stored speed G
WARNING
Only select a stored speed if you know what
that speed is and whether it is suitable for the
current driving and traffic situation. Other-
wise, sudden braking could endanger you or
others. X
Briefly pull the cruise control lever towards
you :.
Setting aspeed X
To adjust the set speed in 10 km/h
increments: briefly press the cruise con-
trol lever up :past the pressure point for a higher speed, or down
;for a lower
speed.
or
X Keep the cruise control lever pressed
beyond the pressure point until the desired
speed is set. Press the cruise control lever
up : for a higher speed or down ;for a
lowe rspeed.
X To adjust the set speed in 1 km/h incre-
ments: briefly press the cruise control
lever up :to the pressure point for a
higher speed or down ;for a lower speed.
or
X Keep the cruise control lever pressed to the
pressure point until the desired speed is
set. Press the cruise control lever up :for
a higher speed or down ;for a lower
speed.
Deactivating variable SPEEDTRONIC G
WARNING
It is not possible to deactivate variable Speed-
tronic by braking. There are several ways to deactivate variable
SPEEDTRONIC:
X
Briefly press the cruise control lever for-
wards :.
or
X Briefly press the cruise control lever in the
direction of arrow =.
LIM indicator lamp ;in the cruise control
lever goes out. Variable SPEEDTRONIC is
deactivated. 176
Driving systemsDriving and parking

Otherwise, you may fail to recognise dangers
in time, cause an accident and injure yourself
and others. G
WARNING
DISTRONIC PLUS brakes your vehicle up to a
maximum of 4 m/s 2
depending on its speed.
This corresponds to approximately 40% of
your vehicle's maximum braking power. You
must also apply the brakes yourselfift his
braking power is not sufficient.
If DISTRONIC PLUS detects a risk of collision
with avehicle in front, an intermittent warning
tone sounds. In addition, the ·distance
warning lamp in the instrument cluster lights
up. Brake to avoid a collision.
General notes DISTRONIC PLUS regulates the speed and
automatically helps you maintain the dis-
tance to the vehicle detected in front. DIS-
TRONIC PLUS brakes automatically so that
the set speed is not exceeded.
On long and steep downhill gradients, espe-
cially if the vehicle is laden or towing a trailer
(CLS Shooting Brake only), you must select
shift range
1,2or 3in good time. By doing
so, you will make use of the braking effec tof
the engine .This relieves the load on the brake
system and prevents the brakes from over-
heating and wearing too quickly.
If DISTRONIC PLUS detects a slower-moving
vehicle in front, your vehicle is braked in order
to maintain the preset distance to the vehicle
in front.
If you want DISTRONIC PLUS to assist you,
the radar sensor system must be activated
(Y page 243) and operational.
The radar sensor system is switched off auto-
matically in the vicinity of radio telescope
facilities (Y page 398).
If there is no vehicle in front, DISTRONIC
PLUS operates in the same way as cruise
control in the speed range between
30 km/h and 200 km/h. If avehicle is driving in front of you, DISTRONIC operates in the
speed range between 0km/h and
200 km/h.
Do not use DISTRONIC PLUS on roads with
steep gradients.
Cruise control lever :
To store the current spee dorahigher
speed
; To set the specified minimum distance
= LIM indicator lamp
? To store the current speed and call up the
last stored speed
A To store the current speed or a lower
speed
B To switch between DISTRONIC PLUS and
variable SPEEDTRONIC
C To deactivate DISTRONIC PLUS
With the cruise control lever, you can operate
DISTRONIC PLUS and variable SPEED-
TRONIC.
The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R LIM indicator lamp off: DISTRONIC PLUS
is selected.
R LIM indicator lamp on: variable SPEED-
TRONIC is selected. 178
Driving systemsDriving and parking

You will see the stored speed for about five
seconds when you activate DISTRONIC PLUS.
X Selec tthe Distance display function
using the on-board computer
(Y page 237).
i You will see the stored speed for about
five seconds when you activate DISTRONIC
PLUS.
Deactivating DISTRONIC PLUS There are several ways to deactivate DIS-
TRONIC PLUS:
X Briefly press the cruise control lever for-
wards :.
or
X Brake, unless the vehicle is stationary.
or
X Briefly press the cruise control lever in the
direction of arrow =.
Variable SPEEDTRONIC is selected. LIM
indicator lamp ;in the cruise control lever
lights up.
When you deactivate DISTRONIC PLUS, you
will see the DISTRONIC PLUS off message
in the multifunction display for approximately
five seconds.
i The last speed stored remains stored until
you switch off the engine. DISTRONIC PLUS is automatically deactiva-
ted if:
R
you engage the parking brake.
R you are driving slower than 25 km/h and
there is no vehicle in front, or if the vehicle
in front is no longer detected.
R ESP ®
intervenes or you deactivate ESP ®
.
R the transmission is in the P,Ror Nposition.
R the vehicle is near a radio telescope facility
(Y page 398).
R you switch off the radar sensor system
(Y page 243).
R you pull the cruise control lever towards
you in order to pull away, and the front-
passenger door or one of the rear doors is
open.
R the vehicle has skidded.
If DISTRONIC PLUS is deactivated, you will
hear a warning tone. You will see the DIS‐ TRONIC PLUS off message in the multifunc-
tion display for approximately five seconds.
Tips for driving with DISTRONIC PLUS General notes
The following contains descriptions of certain
road and traffic conditions in which you must
be particularly attentive. In such situations,
brake if necessary. DISTRONIC PLUS is then
deactivated.
Cornering, going into and coming out of a
bend184
Driving systemsDriving and parking

R
you depress the brake pedal again with a
certain amount of pressur euntil ë dis-
appears from the multifunctio ndisplay.
R you activate DISTRONIC PLUS.
When the HOLD function is activated, the
transmission is shifted automatically to posi-
tion Pif:
R the driver's door is open and the driver's
seat belt is unfastened.
R the engine is switched off, unless it is auto-
matically switched off by the ECO start/
stop function.
R the bonnet is opened.
R a system fault occurs.
R the power supply is not sufficient. RACE START
Important safety notes G
WARNING
RACE START is only available when SPORT
handling mode is activated. SPORT handling
mode will only be able to stabilise the vehicle
to a limited degree if the vehicle starts to skid
or a wheel starts to spin .The vehicle is there-
fore harder to control at the threshold range.
You could lose control of the vehicle and
cause an accident.
RACE START should only be used on closed
off circuits. Always adapt your driving style to
suit the prevailing road and weather condi-
tions.
i RACE START is only available in AMG vehi-
cles.
RACE START enables optimum acceleration
from a standing start. The precondition for
this is a suitable high-grip road surface. Activation conditions You can activate RACE START if:
R
the doors are closed.
R the engine is running and it has reached an
operating temperature of approximately
80 †. This is the case when the engine oil
temperature in the multifunction display
stops flashing.
R SPORT handling mode is activated
(Y page 68).
R the steering wheel is in the straight-ahead
position.
R the vehicle is stationary and the brake
pedal is depressed (left foot).
R the transmission is in position D.
Activating RACE START X
Depress the brake pedal with your left foot
and keep it depressed.
X Turn the drive program selector clockwise
(Y page 158) until the RSlamp lights up.
The Confirm RACE START: Cancel Pad‐
dle UP: Paddle DOWN message appears
in the multifunction display.
i If the activation conditions are no longer
fulfilled, RACE START is cancelled. The
RACE START cancelled message appears
in the multifunction display.
X To cancel: pull the left steering wheel shift
paddle (Y page 158).
or
X To confirm:p ull the right steering wheel
shif tpaddle (Y page 158).
The RACE START available Depress accelerator message appears in the mul-
tifunctio ndisplay.
i If you do not depress the accelerator
pedal fully within two seconds, RACE
START is cancelled. The RACE START not
possible See Owner's Manual message
appears in the multifunction display. Driving systems
187Driving and parking Z

PARKTRONIC monitors the area around your
vehicle using six sensors in the frontb umper
and four sensors in the rear bumper.
Range of the sensors General notes
!
When parking, pay particular attention to
objects above or below the sensors, such
as flower pots or trailer drawbars. PARK-
TRONIC does no tdetec tsuch objects when
they are in the immediat evicinity of the
vehicle. You could damage the vehicle or
the objects.
The sensors may not detect snow and
objects which absorb ultrasonic sources.
Ultrasonic sources, such as an automatic
car wash, a lorry's compressed-air brakes
or a pneumatic drill, could cause PARK-
TRONIC to malfunction.
PARKTRONIC may not function correctly on
uneven terrain. :
Example: sensors in the front bumper,
left-hand side
The sensors must be free of dirt, ice and
slush. Otherwise, they may not function cor-
rectly. Clean the sensors regularly, taking
care not to scratch or damage them
(Y page 328). Example: side view
Example: top view
Front sensors
Centre Approx. 100 cm
Corners Approx. 60 cm
Rea
rsensors Centre Approx. 120 cm
Corners Approx. 80 cm
Minimum distance
Centre Approx. 20 cm
Corners Approx. 15 cm
If there is an obstacle within this range, the
relevant warning displays light up and a warn-
ing tone sounds. If th edistance falls below
the minimum, the distanc emay no longer be
shown. 192
Driving systemsDriving and parking

Warning displays
Warning display for the front area
:
Segments on the left-hand side of the
vehicle
; Segments on the right-hand side of the
vehicle
= Segments showing operational readiness
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is located
on the dashboard above the centre airv ents.
The warning display for the rear area is loca-
ted on the roof lining in the rear compart-
ment.
The warning display for each side of the vehi-
cle is divided into five yellow and two red seg-
ments. PARKTRONIC is operational if yellow
segments showing operational readiness =
light up. Transmission
position Warning display
D
Front area activated
R,
Nor the vehicle
is rolling back-
wards Rear and front areas
activated
P
No areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle. From the:
R
sixth segmen tonwards, you will hea ran
intermittent warning ton efor approx-
imately two seconds.
R seventh segment onwards, you will hear a
warning tone for approximately two sec-
onds. This indicates that you have now
reached the minimum distance.
Deactivating/activating PARKTRONIC :
Indicator lamp
; To deactivate/activate PARKTRONIC
If indicator lamp :lights up, PARKTRONIC is
deactivated. Active Park Assist is then also
deactivated.
i PARKTRONIC is automatically activated
when you turn the key to position 2in the
ignition lock.
Towing atrailer !
Fold in the ball coupling if the trailer tow
hitch is not required .PARKTRONIC meas-
ures the minimum detection range to an
obstacle fro mthe bumper, not the ball cou-
pling.
PARKTRONIC is deactivated for the rear area
when you establish an electrical connection
between your vehicle and a trailer. Driving systems
193Driving and parking Z

Problems with PARKTRONIC
Problem Possible causes/consequences and
M Solutions
Only the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds,
and the indicator lamp
in the PARKTRONIC
button lights up. PARKTRONIC has malfunctioned and has switched off.
X
If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is deacti-
vated after approx-
imately 20seconds. The PARKTRONIC sensors are dirty or there is interference.
X
Cleant he PARKTRONIC sensors (Y page 328).
X Switch the ignition back on. The problem may be caused by an external source of radio or
ultrasound waves.
X
See if PARKTRONIC functions in a different location. Active Parking Assist
Important safety notes G
WARNING
Active Parking Assist is merely an aid and may
sometimes recommend parking spaces that
are not suitable for parking. For example,
these might be spaces where parking is pro-
hibited, driveways, unsuitable surfaces, etc.
Active Parking Assist measures the parking
space as you drive past it. Any later changes
to the parking space are not taken into
account. For instance, this may be the case
when the vehicle parked in front of or behind
the space changes its position or when an
obstacle is moved into the parking space.
Active Parking Assist does not relieve you of
the responsibility of paying attention. If you
rely solely on Active Parking Assist, you could cause an accident and injure yourself and oth-
ers.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring.
G
WARNING
Objects located above the height range of
Active Parking Assist will not be detected
when the parking space is measured. These
are not taken into account when the parking
procedure is calculated, e. g. overhanging
loads, tail sections or loading ramps of goods
vehicles. In some circumstances, Active Park-
ing Assist may therefore guide you into the
parking space too early. This may lead to a
collision. For this reason, you should avoid
using Active Parking Assist in such situations. 194
Driving systemsDriving and parking