2018 MERCEDES-BENZ CLA display

In addition to driving style, the actual consump-
tion is affected by other factors, such as: R
Load R
Tire pressure R
Cold start R
Choice of route R
Active electrical consumers
These factors are not include dint he ECO dis-
play.
An economical driving style specially requires
driving at moderate engine speeds.
Achieving ah igher valu eint he categories
"Acceleration" and "Constant": R
observe the gearshift recommendations. R
drive the vehicle in drive program C or E
(vehicles with aD YNAMIC SELECT button).
On long journeys at ac onstant speed ,e .g. on the
highway, only the outer area for "constant" will
change.
The ECO display summarizes the driving style
from the start of the journey to its completion.
Therefore, there are more marked changes in
the outer area satt he start of aj ourney. On lon-
ger journeys, there are fewer changes. For more
marked changes, perform am anua lr est
( Y
page 181).
For more information on the ECO display, see
( Y
page 180).
Braking
Important safety notes
G WARNING
If you shift down on as lippery road surface in
an attempt to increase the engine's braking
effect, the drive wheel sc ould lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on as lippery road surface.
Downhill gradients
! On long and steep gradients, you must
reduce the load on the brakes by shifting to a
lowe rg ear in good time. This allows you to
take advantage of engine braking. For this you
must first activate manua lg earshifting. This helps you to avoid overheating the brakes and
wearing them out excessively.
When you take advantage of engine braking, it
is possible that ad rive wheel wil ln ot rotate for
some time, e.g. on as lippery road surface.
This could cause damage to the drive train.
This type of damage is not covered by the
Mercedes-Benz warranty.
Briefly depressing the accelerator peda lo n
downhill gradients whil et he manua ld rive pro-
gram M is temporaril ya ctivated: the automatic
transmission may switch to the last active auto-
matic drive program E or S .T he automatic trans-
missio nm ay shift to ah ighe rg ear. This can
reduce the engine's braking effect.
Heavy and light loads
G WARNING
If you rest you rf oot on the brake peda lw hile
driving, the braking system can overheat. This
increases the stopping distance and can even
cause the braking system to fail .T here is a
risk of an accident.
Never use the brake peda lasaf ootrest. Never
depres st he brake peda la nd the accelerator
peda latt he same time.
! Depressing the brake peda lc onstantly
results in excessive and premature wea rt o
the brake pads.
If the brakes have been subjected to ah eavy
load ,don ot stop the vehicle immediately .D rive
on for as hort while. This allows the airflow to
cool the brakes more quickly.
Wet roads If you have driven for al ong time in heavy rain
withou tb raking, there may be ad elayed 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 depres st he brake peda lm ore
firmly .M aintai nag reater distance from the
vehicle in front.
After driving on aw et road or having the vehicle
washed, brake firmly whil ep aying attention to
the traffic conditions. This wil lw arm up the
brake discs, thereby drying them more quickly
and protecting them against corrosion.146
Driving tips
Driving and parking

Limited braking performance on salt-
treated roads If you driv eons alted roads ,al ayer of salt resi-
due may for mont he brak ed isc sa nd brake
pads. This can result in as ignificantly longer
braking distance. R
In orde rtop revent any salt build-up, apply the
brakes occasionally while paying attention to
th et ra ffic conditions.R
Carefully depress th eb rak ep edal and the
beginnin ga nd end of aj ou rney.R
Maintain ag reater distanc etot he vehicle
ahead.
Servicing th eb rakes
! The brak ef luid level may be to ol ow, if:R
if th er ed brak ew arning lamp light supi n
th ei nstrumen tc luster andR
you hear aw arning tone while th ee ngine is
running
Observe additional warning messages in the
multifunction display.
The brak ef luid level may be to ol ow due to
brak ep ad wear or leaking brak el ines.
Hav et he brak es ystem checked immediately.
Consult aq ualifie ds pecialist workshop to
arrange this.
! Af unction or performanc et es ts hould only
be carried out on a2 -a xle dynamometer. If
you wish to operate th ev ehicle on such a
dynamometer, please consult aq ualifie ds pe-
cialis tw orkshop in advance. You could oth-
erwis ed amage th ed riv et ra in or th eb rake
system.
! As th eE SP ®
system operates automatically,
th ee ngine and th ei gnitio nm ust be switched
off (th eS ma rtKey must be in position

Display when Distanc eP ilot DISTRONIC is
deactivate dIn th eA ss istance men u( Y
page 184) of th eo n-
boar dc om puter, you can select th ea ssistanc e
display.
C
Vehicl einf ront ,ifd etecte dD
Distanc ei nd icator, curren td istanc etot he
vehicl einf ront

HOLD function
General notes The HOLD function can assist the drive rint he
following situations: R
when pulling away, especially on steep slopes R
when maneuvering on steep slopes R
when waiting in traffic
The vehicl eisk ept stationary without the driver
having to depress the brake pedal.
The braking effect is cancele da nd the HOLD
function deactivated when you depress the
accelerator peda ltop ul la way.
Important safety notes
G WARNING
When leaving the vehicle, it can still roll away
despite being braked by the HOLD function if: R
there is am alfunction in the system or in
the voltag es upply.R
the HOLD function has been deactivated by
pressing the accelerator peda lort he brake
pedal, e.g. by av ehicl eo ccupant.R
the electrical system in the engine com-
partment, the battery or the fuse sh ave
been tampere dw ith.R
the battery is disconnected
There is ar isk of an accident.
If you wis htoe xit the vehicle, alway st urn off
the HOLD function and secure the vehicle
against rolling away.
! When Distance Pilot DISTRONIC or the
HOLD function is activated, the vehicle
brakes automatically in certain situations.
To avoi dd amage to the vehicle, deactivate
Distance Pilot DISTRONIC and the HOLD
function in the following or similar situations: R
when towing the vehicle R
in the car wash
Deactivating the HOLD function ( Y
pag e1 57). Activation conditions You can activate the HOLD function if: R
the vehicl eiss tationary R
the engine is running or if it has been auto-
matically switched off by the ECO start/stop
function R
the driver's door is closed or you rs eat bel ti s
fastened R
the electric parking brake is released R
Distance Pilot DISTRONIC is deactivated R
the transmission is in position [ , ^ or \\
on vehicles with automatic transmission
Activating the HOLD function X
Make sure that the activation conditions are
met. X
Depress the brake pedal. X
Quickly depress the brake peda lf urther
until C appears in the multifunction display.
The HOLD function is activated. You can
release the brake pedal.
i If depressing the brake peda lt he first time
does not activate the HOLD function, wait
briefly and then try again.
Deactivatin gt he HOLD functionThe HOLD function is deactivated automatically
if: R
you accelerate. On vehicles with automatic
transmission: only when the transmission is in
position [ or ^ . R
the transmission is in position ] on vehicles
with automatic transmission. R
you depress the brake peda la gain with ac er-
tain amount of pressure until C disappears
from the multifunction display. R
you activate Distance Pilot DISTRONIC. R
you secure the vehicl eu sing the electric park-
ing brake.Driving systems 157
Driving and parking Z

Conditions for activation You can activat eR ACE START if:R
th ed oors, hood and th et ru nk lid are closed.R
th ee ng in eisr unnin ga nd th et ra nsmission,
all-wheel driv ec lutch and th ee ng in ea re at
operatin gt em perature.R
th es te ering wheel is in th es tr aight-ahead
position. R
th ev ehicle is stationar ya nd th eb rak ep edal is
depressed (lef tf oot).R
th et ra nsmission is in position [ .R
driv ep rogram S , S+ or RACE is selected
( Y
page 129)
Activating RACE START X
Depres st he brak ep edal wit hy our left foot
and keep it depressed. X
Pull and hold bot hs te ering wheel paddle shift-
ers. X
The RAC ES TART Confirm: Paddle UP
Cancel :P addle DOWN message appear si n
th em ultifunction display.X
Release bot hs te ering wheel paddle shifters.
i If th ea ctivation condition sa re no longer ful-
filled, RACE START is canceled. The RACE
START Not Possible See Operator's
Manual message appear sint he multifunction
display. X
To cancel: pull th el eft steering wheel paddle
shifte r( Y
page 136).
or X
To confirm: pull th er igh ts te ering wheel pad-
dle shifte r( Y
page 136).
The RACE START Available Depress gas
pedal message appear sint he multifunction
display.
i If you do no td epress th ea ccelerato rp edal
within af ew seconds, RACE START is can-
celed. The multifunction display shows the
RAC ES TART Canceled message.X
Fully depress th ea ccelerato rp edal.
The engin es pee disi ncreased.
The RACE START Release brake to start
message appear sint he multifunction display.
i If you do no tr elease th eb rak ep edal within
as hort time, RACE START will be canceled. The multifunction display shows the RACE
START Canceled message.X
Tak ey our foo to ff th eb rake, but keep the
accelerato rp edal depressed.
The vehicle pulls away at maximum acceler-
ation.
The RACE START Active message appear si n
th em ultifunction display.
RACE START is deactivate dw hen th ev ehicle
reaches as pee dofa pproximately 50 km/h.
RACE START is deactivate di mmediately if you
release th ea ccelerato rp edal durin gR ACE
START or if any of th ea ctivation condition sa re
no longer fulfilled. The RAC ES TART Not Pos‐
sible See Operator' sM anual or RACE
START Canceled message appear sint he mul-
tifunctio nd isplay.
i If RACE START is used repeatedly within a
short period of time, it is only available again
after th ev ehicle has been driven ac ertain
distance.
AMG adaptiv es port suspension sys-
tem
General notes The electronicall yc ontrolled damping system
work sc ontinuously. This improve sd riving
safety and ride comfort.
The damping is tuned individually to each wheel
and depends on: R
your driving style, e.g .s portyR
th er oad surface condition ,e .g .b umpsR
your individua ls electio no f Sport or Comfort
The suspension settin gisa djusted usin gt he
correspondin gb utto nint he cente rc onsole.
i The mod ec an also be set usin gt he AMG
DYNAMIC SELECT controller ( Y
page 129).
Eac ht im ey ou start th ee ng in ew it ht he Smart-
Key or th eS ta rt/Sto pb utton, Comfort mod ei s
activated. For further informatio na bout starting
th ee ng ine, see ( Y
page 125).Driving systems 159
Driving and parking Z

Sport mode
The firmer settin goft he suspension tuning in
Sport mode ensures even better contact with
the road. Select this mode when employing a
sporty driving style, e.g. on winding country
roads. X
Press button C .
Indicator lamp D lights up. You have selected
Sport mode.
The AMG Suspension System SPORT
mes-
sage appears in the multifunction display.
Comfort mode In Comfort mode, the driving characteristics of
your vehicle are more comfortable. Select this
mode if you favor am ore comfortable driving
style, but also when driving fast on straight
roads, e.g. highways. X
Press button C again so that indicator
lamp D goes out.
You have selected Comfort mode.
The AMG
Suspension System COMFORT mes-
sage appears in the multifunction display.
4MATIC
! Never tow the vehicle with one axle raised.
This may damage the differential. Damage of
this sort is not covered by the Mercedes-Benz
Limited Warranty. All wheels must remain
either on the ground or be fully raised.
Observe the instructions for towing the vehi-
cle with all wheels in full contact with the
ground.
4MATIC, together with ESP ®
,i mproves the trac-
tion of your vehicle whenever ad rive wheel
spins due to insufficient grip. If you fail to adapt your driving style, 4MATIC can
neither reduce the risk of accident nor override
the laws of physics. 4MATIC cannot take
account of road, weather and traffic conditions.
4MATIC is only an aid. You are responsible for
the distance to the vehicle in front ,f or vehicle
speed, for braking in good time and for staying in
your lane.
If ad rive wheel spins due to insufficient grip: R
Only depress the accelerator pedal as far as
necessary when pulling away. R
Accelerate less when driving.
i In wintry driving conditions, the maximum
effect of 4MATIC can only be achieved if you
use winter tires (M+S tires), with snow chains
if necessary.
DYNAMIC BODY CONTROL
General notes DYNAMI CB ODY CONTROL offers improved
driving comfort and continuously controls the
calibration of the dampers. The
damping characteristics adapt to the current
operating and driving situation.
The damping is tuned individually to each wheel
and depends on: R
your driving style, e.g. sporty R
the road surface conditions R
the drive program selected
The drive program can be set using the
DYNAMI CS ELECT button ( Y
page 128).
Selecting Comfort mode In the Comfort drive program, the driving char-
acteristic sofy our vehicle are more comforta-
ble. Therefore, select this drive program if you
prefer am ore comfortable driving style. Also
select the Comfort drive program when driving
fast on straight roads, e.g. on straight stretches
of highway. X
Press DYNAMI CS ELECT button ( Y
page 128)
as many times as necessary until the Com-
fort drive program is selected.160
Driving systems
Driving and parking

Range
C
Detection rang eoff ront sensorsD
Detection rang eofr ea rs ensors
Front sensors
Center Approx. 40 in (approx.
100 cm)
Corners Approx. 24 in (approx.
60 cm)
Rear sensors
Center Approx. 48 in (approx.
120 cm)
Corners Approx. 32 in (approx.
80 cm)
Minimum distance
Center Approx. 8i n( ap prox. 20 cm)
Corners Approx. 6i n( ap prox. 15 cm)
If there is an obstacl ew it hin this range, the rel-
evant warning display sl ig ht up and aw ar ning
tone sounds. If the distance falls below the min-
imum, the distance may no longer be shown. Warning displays
C
Segments on the left-hand sid eoft he vehi-
cle D
Segments on the right-hand sid eoft he vehi-
cle

becomes .W hen the minimum distance is
reached, you hear ac ontinuous warning tone.
Deactivating or activating Parking
Assist PARKTRONIC
C
Indicator lampD
Deactivates or activates Parkin gA ssist
PARKTRONIC If indicator lamp C is lit, Parkin gA ssist
PARKTRONI Ci sd eactivated.
i Parkin gA ssist PARKTRONI Cisa utomati-
cally activated when you turn the SmartKey to
position 2 in the ignition lock.
Problems with Parking Assist PARKTRONIC Problem
Possible causes/consequences and P Solutions
Only the red segments in
the Parkin gA ssist
PARKTRONI Cw arning
displays are lit. You also
hear aw arning ton ef or
approximately two sec-
onds.
Parkin gA ssist
PARKTRONI Ci st hen
deactivated and the indi-
cator lamp on the
PARKTRONI Cb utton
lights up. Parkin gA ssist PARKTRONI Ch as malfunctioned and has been deacti-
vated. X
If problems persist ,h ave Parkin gA ssist PARKTRONI Cc hecked at a
qualified specialist workshop.
Only the red segments in
the Parkin gA ssist
PARKTRONI Cw arning
displays are lit. Parking
Assist PARKTRONI Ci s
then deactivated. The Parkin gA ssist PARKTRONI Cs ensor sa re dirty or ther eisi nter-
ference. X
Clean the Parkin gA ssist PARKTRONI Cs ensor s( Y
page 265).X
Switc ht he ignition back on.
The problem may be caused by an external source of radio or ultra-
sound waves. X
Check to see if Parkin gA ssist PARKTRONI Cw orks at ad ifferent
location. Driving systems 163
Driving and parking Z