2018 MERCEDES-BENZ CLA fuel consumption

Starting (important safety notes ). .. 123
Starting problems .......................... 127
Starting the engine with the
SmartKey ....................................... 124
Starting via smartphone ................ 124
Starting with the Start/Sto pb ut -
ton ................................................. 124
Switching off .................................. 141
Tow-starting (vehicle ). .................... 284
Engine electronics
Problem (malfunction) ................... 127
Engine jump starting
see Jump starting (engine)
Engine oil
Adding ........................................... 259
Additives ........................................ 318
Checking the oi ll ev el ..................... 258
Checking the oi ll ev el using the
dipstick .......................................... 258
Displa ym essage ............................ 206
Filling capacity ............................... 318
Note sa bout oi lg rade s. .................. 317
Note sono il level/consumption .... 258
Temperature (on-board computer,
Mercedes-AM Gv ehicles) ............... 188
Entering an address
see also Digital Operator's Man-
ua l. ................................................. 229
ESP ®
(Electroni cS tability Pro-
gram)
Activating/deactivating (on-
board computer) ............................ 219
AMG menu (on-board computer) ... 188
Characteristics ................................. 65
Deactivating/activating (button
in Mercedes-AM Gv ehicles) ............. 66
Deactivating/activating (except
Mercedes ‑ AMG vehicles) ................. 65
Deactivating/activating (on-
board computer, except
Mercedes-AM Gv ehicles) ............... 185
Displa ym essage ............................ 192
Function/note s. ............................... 64
Genera ln otes .................................. 64
Important safety information ........... 64
Trailer stabilization ........................... 67
Warning lamp ................................. 221 ETS/4ETS (Electroni cT raction Sys-
tem) ...................................................... 64
Exhaust
see Exhaus tp ip e
Exhaus tc heck ................................... 144
Exhaus tp ipe
Cleaning ......................................... 266
Ex terio r lighting
C leaning ......................................... 265
see Lights
Exterior mirrors
Adjusting ......................................... 96
Dipping (automatic) ......................... 97
Folding in when locking (on-board
computer) ...................................... 188
Folding in/out (automatically ). ........ 97
Folding in/out (electrically) ............. 97
Ou tofp osition (troubleshooting ). .... 97
Setting ............................................. 97
Storing settings (memory func-
tion) ................................................. 99
Storing the parking position ............. 98
Eyeglasse sc om partment ................. 238
F
Favorites
Overview ........................................ 231
Filler cap
see Refueling
First-ai dk it ......................................... 270
Flat tire
MOExtended tire s. ......................... 271
Preparing the vehicl e. .................... 271
TIREFIT kit ...................................... 272
Floormats ........................................... 256
Frequencies
Mobil ep hone ................................. 313
Two-way radio ................................ 313
Fuel
Additives ........................................ 317
Consumption statistics .................. 180
Displaying the current consump-
tion ................................................ 180
Displaying the rang e. ..................... 180
Driving tip s. ................................... 144
E10 ................................................ 316
Fue lg auge ....................................... 3310
Index

Protecting the environment
General notes
H Environmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in am anner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmen-
tally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affected
by these factors: R
operating condition sofy our vehicleR
your personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions: R
avoid short trips as these increase fuel con-
sumption. R
always make sure that the tire pressures
are correct. R
do not carry any unnecessary weight. R
remove roof racks once you no longer need
them. R
ar egularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals. R
always have service work carried out at a
qualified specialist workshop.
Personal driving style: R
do not depress the accelerator pedal when
startin gt he engine.R
do not warm up the engine when the vehicle
is stationary. R
drive carefully and maintain as afe distance
from the vehicle in front. R
avoid frequent, sudden acceleration and
braking. R
change gear in good time and use each gear
only up to

Holding the vehicle stationary on uphill
gradients
G WARNING
If the clutch overheats, the electronic man-
agement system is automatically deactivated.
This interrupts the power transmission. The
vehicl em ay ,f or example, roll backwards on
gradients. There is ar isk of an accident.
Never hold the vehicl es tationary on uphill
gradients by depressing the accelerator.
The clutch may overheat if you hold the vehicle
stationary on uphill gradients by depressing the
accelerator pedal. If the clutch overheats, a
warning tone sounds.
All vehicle s( except Mercedes-AMG vehi-
cles): the Stop Vehicle Shift to 'P'
Leave Engine Running display message
appears in the multifunction display .Y ou will
only be abl etoc ontinue you rj ourney once the
clutch has coole dd ow na nd the display mes-
sage in the multifunction display has disap-
peared.
Mercedes-AMG vehicles: the Trans. Oil
Overheated Drive on with Care display
message appears in the multifunction display.
Do not hold the vehicl es tationary on uphill gra-
dients by depressing the accelerator pedal.
Instead, only ever hold the vehicl es tationary on
uphill gradients by: R
depressing the brake pedal R
activating the HOLD function R
engaging the electric parking brake
Kickdown Use kickdown for maximu ma cceleration.X
Depress the accelerator peda lb eyond the
pressure point.
The automatic transmission shifts to al ower
gea rd epending on the engine speed.X
Ease off the accelerator peda lo nce the
desired spee disr eached.
The automatic transmission shifts back up.
Mercedes-AMG vehicles: it is only possible to
use kickdown in the automatic drive program
and the temporary manua ld rive program M .
When manua ld rive program M is permanently
activated, kickdown is not possible. For further information on kickdown in manual
drive program M ( Y
pag e1 38).
Rocking the vehicle free Shifting back and forth between transmission
positions [ and ^ can help to free up the
vehicl eifitg ets stuck in mud or snow. The vehi-
cle's engine management system limits the
spee dtoam aximu mof5m ph (9 km/h) when
shifting back and forth. To shift repeatedly
between transmission positions [ and ^ ,
move the DIRECT SELECT leve rupa nd down
pas tt he point of resistance.
Drive programs
Al lv ehicle s( except Mercedes-AMG
vehicles) Drive program C( Comfort)Drive program C is characterized by the follow-
ing: R
the vehicl ed elivers comfortable, economical
handling characteristics. R
the vehicl ep ulls awa ym ore gently in forward
and reverse gears, unless the accelerator
peda lisd epressed fully. R
the vehicl eh as improved driving stability ,f or
exampl eons lippery road surfaces. R
optima lf uel consumption resulting from the
automatic transmission shifting up sooner.
The vehicl eisd rive nint he low engine speed
range and the wheels are less likel ytos pin.
Drive program S( Sport)
Drive program S is characterized by the follow-
ing: R
sporty engine settings. R
the automatic transmission shifts up later.
The fuel consumption possibly being higher
as ar esult of the later automatic transmission
shift points.134
Automatic transmission
Driving and parking

R
gliding mode is not available. R
the ECO start/stop function is not available.
Drive program S+ (Sport Plus) Drive program S+ is characterized by the fol-
lowing: R
the vehicle exhibits particularly sporty driving
characteristics. R
the automatic transmission shifts up later. R
the fuel consumption possibly being higher as
ar esult of the later automatic transmission
shift points. R
the suspension exhibits particularly stiff
springing and damping settings (vehicles with
AMG adaptive sport suspension system). R
gliding mode is not available. R
the ECO start/stop function is not available.
Drive program RACE (vehicle sw ith AMG
adaptive sport suspension system) The RACE drive program is characterized by the
following: R
the vehicle exhibits driving characteristics
suitable for the racetrack. R
all vehicle systems are set for maximum
sportiness. R
the automatic transmission shifts up later. R
the fuel consumption possibly being higher as
ar esult of the later automatic transmission
shift points. R
the suspension exhibits particularly hard
springing and damping settings. R
gliding mode is not available. R
the ECO start/stop function is not available.
Manual gear shifting
General notes You can change gear yourself using the steering
wheel paddle shifters. The transmission must be
in position [ to do this.
Depending on which steering wheel paddle
shifter is pulled, the automatic transmission
immediately shifts into the next gear down or
up, if permitted. Mercedes-AMG vehicles: to use manual shift-
ing, you have two options: R
temporary setting R
permanent setting
If you activate manual gearshifting, the multi-
function display will show the current gear
instead of transmission position [ .
If manual gearshifting is deactivated, the gears
will be selected automatically.
Temporar ys etting X
To activate: shift the DIRECT SELECT lever to
position [ . X
Pull steering wheel paddle shifter C or D .
Temporary setting will be active for ac ertain
amount of time. Under certain conditions the
minimum amount of time is extended, e.g. in the
case of lateral acceleration, during an overrun
phase or when driving on steep terrain. X
To deactivate: pull steering wheel paddle
shifter D and hold it in place.
or X
Use the DIRECT SELECT lever to switch the
transmission position.
or X
All vehicles (except Mercedes-AMG vehicles):
use the DYNAMI CS ELECT button to change
the drive program.
Mercedes-AMG vehicles: use the DYNAMIC
SELECT controller to change the drive pro-
gram.136
Automatic transmission
Driving and parking

Drivin gt ip s
General notes
Important safet yn otes
G WARNING
If you switch of ft he ignition whil ed riving,
safety-relevant function sa re only available
wit hl imitations, or no tata ll. Thi sc ou ld affect,
fo re xa mple, th ep owe rs te erin ga nd th eb rake
boostin ge ffect. You will require considerably
more effort to steer and brake .T here is ar is k
of an accident.
Do no ts witch of ft he ignition whil ed riving.
G WARNING
If you operat em ob ile communication equip -
men tw hen driving, you may be distracted
from th et ra ffic situation .Y ou could also los e
contro loft he vehicle. There is ar is kofa n
accident.
Only operat et hi se quipmen tw hen th ev ehicle
is stationary.
Observ et he lega lr equirements fo rt he country
in whic hy ou are driving. Some jurisdiction sp ro -
hibi tt he driver from usin gam ob ile phone whil e
drivin gav ehicle.
If you mak eac al lw hil ed riving, always use
hands-free mode. Only operat et he telephon e
when th et ra ffic situation permits. If you are
unsure ,p ull over to as af el ocation and stop
befor eo peratin gt he telephone.
Bear in min dt ha tatas peed of only 30 mph
(approximately 50 km/h), th ev ehicle cover sa
distanc eo f4 4f t( approximately 14 m) per sec-
ond.
Drive sensibly –s ave fuelObserve the following tips to save fuel: R
The tires should always be inflated to the rec-
ommended tire pressure. R
Remove unnecessary loads. R
Remove roof rack sw hen they are not needed.R
Warm up the engin eatl ow engin es peeds.R
Avoid frequen ta cceleration or braking.R
Have all maintenanc ew ork carried out as
indicated by the servic ei ntervals in the Main- tenance Booklet or by the servic ei nterval dis-
play.
Fuel consumption also increases when driving in
cold weather, in stop-start traffic and in hilly ter-
rain.
Drinking and driving
G WARNING
Drinkin ga nd driving and/or takin gd rugs and
driving are very dangerous combinations.
Even as mall amount of alcohol or drugs can
affect your reflexes, perceptions and judg-
ment.
The possibility of as erious or even fatal acci-
dent is greatly increased when you drink or
take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or tak-
ing drugs.
Emission control
G WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is ar isk of fatal injury. Therefor en ever leave
the engin er unning in enclosed spaces with-
out sufficien tv entilation.
Certain engin es ystems are designed to keep
the level of poisonous component sine xhaust
fumes within legal limits.
These systems only work at peak efficiency if
they are serviced exactly in accordance with the
manufacturer's specifications .A lways have
work on the engin ec arried out at aq ualified
specialist workshop. Mercedes-Benz recom-
mends that you use an authorized Mercedes-
Ben zC enter for this purpose. In particular, work
relevant to safety or on safety-related systems
must be carried out at aq ualified specialist
workshop.
The engin es ettings must not be changed under
any circumstances. Furthermore, all specific
servic ew ork must be carried out at regular
intervals and in accordance with the Mercedes-
Ben zs ervic er equirements. Details can be found
in the Maintenance Booklet.144
Driving tips
Driving and parking

R
wear excessively and/or unevenly R
have an adverse effect on fuel consumption
Overinflated tires
G WARNING
Tires with excessively high pressure can burst
becaus et he ya re damaged mor ee asily by
road debris ,p otholes etc .Ina ddition, they
also suffer fro mi rregular wear, which can
severely impair th eb raking properties and the
driving characteristics. Ther eisar isk of an
accident.
Avoid tir ep ressures that are too high in all the
tires, including th es pare wheel.
Overinflated tires may: R
increase th eb raking distanceR
adversely affect handling R
wear excessively and/or unevenly R
have an adverse effect on ride comfort R
be mor es usceptible to damage
Maximu mt ir ep re ssures
C
Example: maximum permissible tir ep res-
sure
Never exceed th em aximum permissible tire
inflatio np ressure. Always observe th er ecom-
mended tir ep ressure for your vehicle when
adjustin gt he tir ep ressure ( Y
page 290).
i The actual values for tires are vehicle-spe-
cific and may deviat ef ro mt he values in the
illustration. Checking th et ir ep re ssures
Important safety notes Observe th en otes on tir ep ressure
( Y
page 290).
Information on air pressure for th et ires on your
vehicle can be found: R
on th ev ehicle's Tire and Loadin gI nf ormation
placar dont he B-pillar R
in th et ir ep ressure table in th ef uel filler flap
( Y
page 139) R
in th e" Tire pressure" section
Checking tir ep re ssures manuallyTo determine and set th ec orrec tt ir ep ressure,
proceed as follows: X
Remov et he valve cap of th et ir et ha tistob e
checked. X
Pres st he tir ep ressure gauge securely onto
th ev alve. X
Read th et ir ep ressure and compare it to the
recommended value on th eT ire and Loading
Information placar dort he tir ep ressure table
( Y
page 290). X
If th et ir ep ressure is too low, increase th et ire
pressure to th er ecommended value. X
If th et ir ep ressure is too high, releas ea ir. To
do so, pres sd own th em etal pin in th ev alve,
using th et ip of ap en for example. Then check
th et ir ep ressure again using th et ir ep ressure
checker. X
Screw th ev alve cap ont ot he valve.X
Repeat these steps for th eo ther tires.
Tir ep re ssur el oss warning system
(Canada only)
General notes While th ev ehicle is in motion, th et ir ep ressure
loss warning system monitors th es et tir ep res-
sure using th er otational speed of th ew heels.
This enables th es ystem to detect significant
pressure loss in at ire. If th es peed of rotation of
aw heel changes as ar esult of al oss of pressure,
ac orresponding warning message will appear in
th em ultifunction display.
You can recognize th et ir ep ressure loss warning
by the Run Flat Indicato rA ctive PressTir ep re ssure 293
Wheels and tires Z

Whee la nd tire combinations
General notes You can ask for information regarding permitted
wheel/tire combinations at an authorized
Mercedes-Benz Center.
You should regularl yc heck the pressure of the
emergency spare wheel, particularly prio rt o
long trips, and correct the pressure as neces-
sary ( Y
pag e2 90). The valu eont he wheel is
valid.
! For safety reasons, Mercedes-Benz recom-
mends that you only use tires and wheels
which have been approved by Mercedes-Benz
specifically for you rv ehicle.
These tires have been speciall ya dapted for
use with the control systems, such as ABS or
ESP ®
,a nd are marked as follows:R
MO = M ercedes-Benz OriginalR
MOE = M ercedes-Benz Original Extended
(tires featuring run-fla tc haracteristics)R
MO1 = M ercedes-Benz Original (only cer-
tain AMG tires)
Mercedes-Benz Original Extended tires may
only be use donw heels that have been spe-
cifically approved by Mercedes-Benz.
Only use tires, wheels or accessories tested
and approved by Mercedes-Benz. Certain
characteristics, e.g. handling, vehicl en oise
emissions or fuel consumption, may other-
wis ebea dversely affected .Ina ddition, when
driving with al oad, tire dimension variations
coul dc aus et he tires to come into contact
with the bodywork and axle components. This
coul dr esult in damage to the tires or the vehi-
cle.
Mercedes-Benz accepts no liability for dam-
age resulting from the use of tires, wheels or
accessories other than those tested and
approved.
Informatio nont ires, wheels and approved
combinations can be obtained from any quali-
fied specialist workshop.
! Retreaded tires are neither tested nor rec-
ommende dbyM ercedes-Benz, since previ-
ous damage cannot alway sbed etected on
retreaded tires. As ar esult, Mercedes-Benz
cannot guarantee vehicl es afety if retreaded
tires are mounted .Don ot mount use dt ires if
you have no information abo ut thei r previous
u
sage. The recommende dp ressures for various oper-
ating conditions can be found: R
on the Tire and Loading Informatio np lacard
on the B-pillar on the driver's side R
in the tire pressure tabl eint he fuel filler flap
Observe the notes on recommende dt ire pres-
sure su nder various operating conditions
( Y
pag e2 90).
Check tire pressures regularly ,a nd only when
the tires are cold. Comply with the maintenance
recommendations of the tire manufacturer in
the vehicl ed ocument wallet.
Notes on the vehicl ee quipment –a lway se quip
the vehicle: R
with tires of the same size on ag ive na xle (left
and right) R
with the same type of tire (summer tires,
MOExtended tires, winter tires)
Exception: it is permissible to instal lad iffer-
ent type or make in the event of af lat tire.
Observe the "MOExtended tires (tires with
run-fla tc haracteristics" section ( Y
pag e2 71).
Vehicles equipped with MOExtended tires are
not equipped with aT IREFIT kit at the factory .I t
is therefore recommende dt hat you additionally
equip you rv ehicl ew ith aT IREFIT kit if you mount
tires that do not feature run-fla tp roperties, e.g.
winter tires. AT IREFIT kit may be obtained from
aq ualified specialist workshop.312
Whee la nd tire combinations
Wheels and tires

Do not mix such fuel sw it ht he fuel recom-
mended for your vehicle.
! To ensur et he longevity and full perform-
ance of the engine ,o nl yp remium-grade
unleade dg as oline must be used.
If standard unleade dg as oline is unavailable
and yo uh av etor efue lw it hu nleade dg as oline
of al ower grade ,o bs erve the following pre-
cautions: R
Onl yf il lt he fuel tank to half full with regular
unleade dg as oline and fil lt he res tw it hp re-
mium-grad eu nleade dg as oline as soo na s
possible. R
Do not drive at the maximum speed. R
Avoi ds udde na cceleratio na nd engine
speeds ove r3 ,000 rpm.
Yo uw il lu sually find informatio na bout the fuel
grade on the fuel pump. If yo uc anno tf ind the
labe lont he fuel pump, as kt he ga ss tatio ns taff.
i For furthe ri nformation, consul taq uali fied
specialis tw or kshop or visit
http://www.mbusa.com (USA only).
CL A2 50 ,C LA 25 0S port, CL A2 50 4MATIC,
CL A2 50 Sport 4MATIC: as at emporary meas-
ure, if the recommende df ue lisn ot available,
yo um ay also us er egular unleade dg as oline with
an octane rating of 88 AKI /93 RON .
All othe rm odels: as at emporary measure, if
the recommende df ue lisn ot available, yo um a y
also us er egular unleade dg as oline with an
octane rating of 87 AKI/91 RON. Thi sm ay
reduce engine performance and increase fuel
consumption. Avoi dd rivin gatf ul lt hrottle and
sudden acceleration. Never refue lu si ng gaso-
line with al ower AKI.
Informatio nonr efueling ( Y
page 139).
Additives
! Operating the engine with fuel additives
adde dl at er can lead to engine failure. Do not
mix fuel additive sw it hf uel. Thi sd oe sn ot
includ ea ddit ive sf or the remova la nd preven-
tio nofr esidue buildup. gasoline must onl yb e
mixed with additive sr ecommende db y
Mercedes-Benz. Compl yw it ht he instructions
for us eont he product label. Mor ei nformation
abou tr ecommende da ddit ive sc an be
obtained fro ma ny authorize dM er cedes-Benz
Center.
Mercedes-Benz recommends tha ty ou us eb ran-
de df uels tha th av ea ddit ives. The fuel quality availabl eins om ec ountries may
not be sufficient. Residu ec ould buil dupint he
fuel injectio ns ys tem as ar esult. In such cases,
and in consultation with an authorized
Mercedes-Benz Center, the fuel ma ybem ixed
with the cleaning additive recommende db y
Mercedes-Benz. Yo um us to bs erve the notes
and mi xing ratio ss p
e cifie dont he container.
Engine oil
General notes
! Do not us ee ngine oi lorano il filter with
specifications deviating fro mt hos ee xpressly
required for the prescribe ds ervic ei ntervals.
Do not change the engine oi loro il filter in
order to set replacement intervals longe rt han
thos ep rescribed. Thi sc ould otherwis ec ause
damage to the engine or exhaust ga sa ft er-
treatment.
Follo wt he instructions on the servic ei nterval
displa yf or changing the engine oil. Thi sc ould
otherwis ec ause damage to the engine or
exhaust ga sa ft ertreatment.
When handling engine oil, observe the important
safety note sons ervic ep roducts ( Y
page 315).
The engine oils ar em at che dtot he performance
of Mercedes-Benz engine sa nd servic ei ntervals.
Yo us houl dt herefore onl yu se engine oils and oil
filters tha ta re approved for vehicles with main-
tenance systems.
For al is tofa pp roved engine oils and oi lf ilters,
consul tana ut horize dM er cedes-Benz Center.
Or visit the website
http://bevo.mercedes-benz.co m.
The table shows which engine oils have been
approved for your vehicle.Service products and filling capacities 317
Technical data Z