2018 MERCEDES-BENZ CLA open hood

Grade (gasoline) ............................ 316
Importan ts afety note s. ................ .3 16
Problem (malfunction) .................. .1 40
Refueling ........................................ 138
Tank content/reserve fuel ............. 316
Fue lf iller flap
Opening ......................................... 139
Fue ll evel
Calling up the range (on-board
computer) ...................................... 180
Fue lt ank
Capacity ........................................ 316
Problem (malfunction) ................... 140
Fuses
Allocation chart ............................ .2 85
Before changing ............................ .2 84
Fuse box in the engine compart-
ment .............................................. 285
Fuse box in the front-passenger
footwell .......................................... 285
Important safety notes .................. 284
G Garage door opener
Clearing the memory ..................... 254
General notes ................................ 252
Important safety notes .................. 252
Opening/closing the garage door .. 254
Problems whe np rogramming ....... .2 54
Programming (button in the rear-
view mirror) ................................... 252
Synchronizing the rolling code ....... 253
Gasoline ............................................. 316
Gear indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 188
Genuine parts ...................................... 24
Glove box .......................................... .2 38
Google ™L oc al Search
see also Digita lO perator's Man-
ua l. ................................................ .2 29
H
Handbrake
see Parking brake
HANDS-FRE EA CCES S .......................... 79 Hazard warning lamps
Display message ............................ 216
Switching on/off ........................... 102
Head restraints
Adjusting ......................................... 92
Adjusting (manually ). ....................... 93
Adjusting (rear) ................................ 93
Headlamps
Fogging up ..................................... 103
see Automatic headlamp mode
Heating
see Climate control
High beam flasher ............................ .1 01
High-beam headlamps
Adaptive Highbeam Assist ............. 102
Display message ............................ 203
Replacing bulbs ............................ .1 06
Switching on/off ........................... 101
Hill start assist .................................. 125
HOLD function
Activating ....................................... 157
Activatio nc onditions ..................... 157
Deactivating ................................... 157
Display message ............................ 207
Function/notes ............................ .1 57
Home address
see also Digita lO perator's Man-
ua l. ................................................ .2 29
Hood
Closing .......................................... .2 58
Display message ............................ 215
Important safety notes .................. 257
Opening ......................................... 257
Horn ...................................................... 32
Hydroplaning ..................................... 148
I
Ignitio nl ock
see Key positions
Immobilizer .......................................... 68
Indicator lamp
Replacing bulbs (rear) .................... 106
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals Index 11

You should therefore adapt your drivin gs tyle
to the differen th andlin gc haracteristics. Have
the brak es yste mc hecked at aq ualified spe-
cialist workshop.
Please observ et he information on warnin ga nd
indicator lamps ( Y
page 220)
( Y
page 220) as well as on display messages
( Y
page 194).
ADAPTIVE BRAKE ADAPTIVE BRAKE enhances braking safet ya nd
offers increased braking comfort .Ina ddition to
the braking function ,A DA PTIVE BRAKE also has
the HOL Df unction ( Y
page 157) and hill start
assist ( Y
page 125).
STEER CONTROL
Genera li nformationSTEER CONTROL helps you by transmitting a
noticeable steerin gf orc etot he steerin gw heel
in the direction required for vehicle stabilization.
This steerin ga ssistanc eisp rovided in particular
if: R
both right wheels or both left wheels are on a
wet or slippery road surfac ew hen you brakeR
the vehicle begins to skid
Important safet yn otes
i Observe the "Importan ts afet yn otes" sec-
tion ( Y
page 61).
No steerin ga ssistanc eisp rovided from STEER
CONTROL, if: R
ESP ®
is malfunctioningR
the steerin gism alfunctioning
If ESP ®
is malfunctioning, you will be assisted
further by the electrical power steering.
Protection against theft
Immobilizer
The immobilizer prevent sy our vehicle from
being started without the correc tS martKey. X
To activat ew ith th eS martKey: remove the
SmartKey from the ignition lock. X
To activat ew ith KEYLESS-GO start-func-
tion or KEYLESS-GO: switc ht he ignition off
and open the driver's door. X
To deactivate: switc hont he ignition.
When leaving the vehicle, always tak et he
SmartKey with you and lock the vehicle. Anyone
can star tt he engin eifav alid SmartKey has been
left inside the vehicle.
i The immobilizer is always deactivate dw hen
you star tt he engine.
In the even tt hat the engin ec annot be started
(yet the vehicle's battery is charged), the sys-
tem is not operational. Contact an authorized
Mercedes-Ben zC enter or call
1-800-FOR-MERCedes (in the USA )o r
1-800-387-010 0( in Canada).
ATA (anti-theft alar ms ystem)
X
To arm: lock the vehicle with the SmartKe yo r
KEYLESS-GO.
Indicator lamp C flashes. The alarm system
is armed after approximately 15 seconds. X
To disarm: unlock the vehicle with the Smart-
Key or KEYLESS-GO.
or X
Insert the SmartKe yi nt ot he ignition lock.
Av isual and audible alarm is triggered if the
alarm system is armed and you open: R
ad oor R
the vehicle with the mechanical key R
the trun kl id R
the hood68
Protection against theft
Safety

X
Insert the new bul bi nto bul bh older D .X
Insert bul bh older D and turn it clockwise.X
Press on housing cover C and turn it to the
right. X
Replace the cover in the front wheel housing
( Y
page 105).
High-beam headlamps/daytime run-
ning lamps/parking lamps and stand-
ing lamps (halogen headlamps) X
Switch off the lights. X
Open the hood. X
Turn housing cover C counter-clockwise and
remove it. X
Turn bul bh older D counter-clockwise and
pul lo ut.X
Insert the new bul ba nd engage it to the stop.X
Press on housing cover C and turn it to the
right.
Turn signals (halogen headlamps)
X
Switch off the lights. X
Open the hood. X
Turn bul bh older C counter-clockwise and
pul lo ut. X
Turn the bul bc ounter-clockwise and pul li t
out of bul bh older C .X
Insert the new bul bi nto bul bh older C .X
Insert bul bh older C and turn it clockwise
until it engages.
Replacing rear bulbs
Openin ga nd closing the side trim pan-
els
View of right-hand side trim panel
You must open the side trim panel in the trunk
before you can replace the bulbs in the tail
lamps. X
To open: release right or left side trim
panel C at the top and fold it down in the
direction of the arrow. X
To close: insert side panel C .
Tail lamps X
Switch off the lights. X
Open the trunk. X
Open the side trim panel ( Y
page 106).106
Replacing bulbs
Lights and windshield wipers

i If you activate the residual heat function at
high temperatures, only the ventilation wil lb e
activated. The blower runs at mediu ms peed.
i You cannot use the ventilation to cool the
vehicle interior to at emperature lowe rt han
the outsid et emperature.
Activating/deactivating X
Turn the SmartKey to position Z in the igni-
tion lock or remove it ( Y
page 122).X
Press the K button.
The indicator lamp in the K button lights
up or goes out.
The indicator lamp in the button indicates that
the respective function is activated.
i Residua lh eat is deactivated automatically:R
after approximately 30 minutes R
when the ignition is switched on R
if the battery voltage drops
Air vents
Important safety notes
G WARNING
Very hot or very cold air can flow from the air
vents. This could resul tinb urns or frostbite in
the immediate vicinity of the air vents. There
is ar isk of injury.
Make sure that all vehicle occupants always
maintain as ufficient distance to the air out-
lets. If necessary ,r edirect the airflow to
another area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes: R
keep the air inlet between the windshield and
the hood free of blockages, such as ice, snow
or leaves. R
never cover the air vents or air intake grilles in
the vehicle interior.
i For optimal climate control in the vehicle,
open the air vents completely and set the
adjusters to the central position. Setting the air vents
C
Side window defroster vent D
Side air vent X
To open as ide air vent: turn the adjuster in
side air vent D to the left. X
To close as ide air vent: turn the adjuster in
side air vent D clockwise as far as it wil lg o.
i The center and rear air vents are adjusted in
the same way.120
Ai rv ents
Climate control

vice or maintenance work. There is ar isk of
injury.
Always secure the engine against uninten-
tional starting before carrying out mainte-
nance or repair work.
Make sure that the engine cannot be started via
you rs martphone before carrying out mainte-
nance or repairs. You can prevent an engine
start via you rs martphone, for example, if you:R
switch on the hazard warning lamps R
do not lock the doors R
open the hood
Pulling away
General notes
G WARNING
If the engine spee disa bove the idling speed
and you engage transmission position D or R ,
the vehicl ec ould pul la wa ys uddenly .T here is
ar isk of an accident.
When engaging transmission position D or R ,
alway sf irmly depress the brake peda la nd do
not simultaneously accelerate.
Depress the accelerator carefully when pulling
away.
The vehicl el ocks centrally once you have pulled
away. The locking knobs in the doors drop down.
You can open the doors from the insid eata ny
time.
You can als od eactivate the automatic locking
feature ( Y
pag e1 87).
It is possible to shift the transmission from posi-
tion ] to the desired position only if you
depress the brake pedal. Only then can the
parking lock be deactivated.
All vehicles (except Mercedes-AMG vehi-
cles): if you do not depress the brake pedal, the
DIRECT SELECT lever can still be moved but the
parking lock remains engaged.
Mercedes-AMG vehicles: if you do not depress
the brake pedal, the selector lever can still be
moved but the parking lock remains engaged.
At transmission flui dt emperatures below

There is as hort delay before ac hange in outside
temperature appears in the multifunction dis-
play.
Coolant temperature gauge
G WARNING
Opening the hood when the engine is over-
heated or when there is af ire in the engine
compartment could expose you to hot gases
or other service products. There is ar isk of
injury.
Let an overheated engine cool down before
opening the hood. If there is af ire in the
engine compartment ,k eep the hood closed
and contact the fire department. ! Ad isplay message is shown if the coolant
temperature is too high.
If the coolant temperature is over 248 ‡
(120 †), do not continue driving. The engine
will otherwise be damaged.
The coolant temperature gage is in the instru-
ment cluster on the right-hand side ( Y
page 33).
The H marking in the coolant temperature gauge
corresponds to ac oolant temperature of
approximately 248 ‡( 120 †).
Under normal operating conditions and at the
correc tc oolant level, the coolant temperature
gauge may rise to the H marking.
Operating the on-board computer
Overview
C
Multifunction display
D
Right control panel

Engine compartment
Hood
Important safety notes
G WARNING
If th eh ood is unlatched, it may open up when
th ev ehicle is in motion and bloc ky our view.
Ther eisar isk of an accident.
Never unlatch th eh ood while driving .B efore
ever yt ri p, ensure that th eh ood is locked.
G WARNING
When opening and closin gt he hood ,itm ay
suddenly fall int ot he closed position .T her ei s
ar isk of injury to person sw ithin range of
movemen toft he hood.
Open and close th eh ood only when no on ei s
within its range of movement.
G WARNING
Opening th eh ood when th ee ngine is over-
heated or when there is af ir eint he engine
compartmen tc oul de xpose you to hot gases
or other servic ep roducts. Ther eisar isk of
injury.
Let an overheate de ngine coo ld own before
opening th eh ood .Ift he re is af ir eint he
engine compartment, keep th eh ood closed
and contac tt he fir ed epartment.
G WARNING
The engine compartmen tc ontain sm oving
components. Certain components, suc ha s
th er adiator fan ,m ay continue to run or start
again suddenly when th ei gnition is off .T here
is ar isk of injury.
If you nee dtodoa ny work inside th ee ngine
compartment: R
switch off th ei gnitionR
never reac hi nt ot he area wher et he re is a
risk of danger from moving components,
suc hast he fan rotatio na rea R
remove jewelry and watches R
keep items of clothing and hair, for exam-
ple, away from moving parts
G WARNING
The ignition system and th ef uel injection sys-
te mw ork unde rh igh voltage. If you touch
component sw hic ha re unde rv oltage, you
coul dg et an electric shock. Ther eisar isk of
injury.
Never touch component soft he ignition sys-
te morf uel injection system when th ei gnition
is switched on.
Opening th eh ood
G WARNING
Certain component sint he engine compart-
ment, suc hast he engine ,r adiator and parts
of th ee xhaust system, can become ver yh ot.
Workin gint he engine compartmen tp ose sa
risk of injury.
Wher ep ossible, let th ee ngine coo ld own and
touch only th ec omponent sd escribe dint he
following.
G WARNING
When th eh ood is open and th ew indshield
wiper sa re set in motion ,y ou can be injured by
th ew iper linkage. Ther eisar isk of injury.
Always switch off th ew indshield wiper sa nd
th ei gnition before opening th eh ood.
! Mak es ure that th ew indshield wiper sa re
no tf olded away from th ew indshield. You
coul do th erwise damag et he windshield wip-
ers or th eh ood.Engine compartment 257
Maintenance and care Z

Make sure that: R
The jumper cables are not damaged. R
Non-insulated parts of the terminal clamps do not come into contact with other metal parts while
the jumper cables are connected to the battery. R
The jumper cables cannot come into contact with parts that can move when the engine is running,
such as the V-belt pulle yort he fan.X
Secure the vehicle by applying the electric parking brake. X
Shift the transmission to position ] .X
Turn the SmartKey to position Z in the ignition lock and remove it.X
Switch off all electrical consumers, e.g. rear window defroster, lighting, etc. X
Open the hood.
Position number