2018 MERCEDES-BENZ CLA display

Compass
Callin gu pt he compass
C
Rear-view mirrorD
Compass display

Checking and addin go ther service
products
Checking coolan tl evel
G WARNING
The coolin gs ystem is pressurized, particularly
when th em otor is warm .Ify ou open th ec ap,
you coul dbes ca lded if hot coolant sprays out.
Ther eisar is kofi njury.
Let th ee ng in ec oo ld own before you open the
cap. Wear gloves and eye protection .S lowly
open th ec ap to relieve pressure.
! The coolant may only be checked and cor-
recte dw hen th ee ng in eisc oo l( coolan tt em -
peratur eb elow 10 4‡( 40 †) .C heckin gt he
coolan tw hen th ec oo lan tt em peratur ei s
abov e1 04 ‡( 40 †) ma yr esult in damage to
th ee ng in eortot he engin ec oo lin gs ystem.
X
Par kt he vehicl eonal evel surface.
Only chec kt he coolan tl evel when th ev ehicl e
is on al evel surfac ea nd th ee ng in eh as cooled
down .X
Turn th eS ma rtKey to position H in th ei gni-
tion loc k( Y
page 122).X
Chec kt he coolan tt em perature display in th e
instrumen tc luster.
The coolan tt em perature mus tbeb elo w
10 4‡ (40 †).X
Turn th eS ma rtKey to position Z
( Y
page 122) in th ei gnition loc k.X
Slowly tur nc ap C counter-clockwise and to
reliev ee xces sp ressure.X
Turn cap C further counter-clockwise and
remove it .
If th ec oo lan tisatt he level of marke rb ar

ASSYS TP LUS
Service message The ASSYS TP LU Ss ervic ei nterval display
inform sy ou of th en ex ts ervic ed ue date.
You can fin di nformation on th et yp eofs ervic e
and servic ei ntervals in th eM aintenance Book -
let .
You can obtain further information from an
authorize dM ercedes-Benz Cente rora t
http://www.mbusa.co m( US Ao nl y).
i The ASSYS TP LU Ss ervic ei nterval display
does no ts ho wa ny information on th ee ng in e
oil level. Observ et he note sont he engin eo il
level ( Y
page 258).
The multifunction display shows as ervic em es -
sage for several seconds, e.g. :R
Servic eAin..d ay sR
Servic eAd ueR
Servic eAo verdu eby..d ay s
Dependin gont he operating condition soft he
vehicle, th er emaining time or distanc eu ntil th e
next servic ed ue dat eisd isplayed.
The lette r A or B ,p ossibl yinc onnectio nw it ha
number or another letter, indicates th et yp eo f
service. A stand sf or am inor servic ea nd B for a
major service.
You can obtain further information from an
authorize dM ercedes-Benz Center.
The ASSYS TP LU Ss ervic ei nterval display does
no tt ak ei nt oa ccoun ta ny periods of time during
whic ht he battery is disconnected.
Maintainin gt he time-dependen ts ervic es ch ed-
ule: X
Not ed own th es ervic ed ue dat ed isplayed in
th em ultifunction display before disconnect -
ing th eb attery.
or X
Afte rr econnecting th eb attery, subtrac tt he
battery disconnection periods from th es er -
vic ed at es hown on th ed isplay.
Hiding as ervice messageX
Press th e v or 8 butto nont he steering
wheel. Displaying service messages X
Switc hont he ignition .X
Press th e Y or e butto ntos elect th e
Serv. menu. X
Press th e c or d butto ntos elect th e
ASSYST PLU S submen ua nd confirm by press-
ing th e v button.
The servic ed ue dat ea ppear sint he multi-
function display.
Infor ma ti on abou tS ervice
Resetting th eA SSYS TP LUS service
interval display
! If th eA SS YS TP LU Ss ervic ei nterval display
has been inadvertentl yr eset ,t hi ss etting can
be correcte dataq ualified specialist work-
shop.
Hav es ervic ew or kc arrie do ut as described in
th eM aintenance Booklet .T his may otherwise
lead to increased wear and damag etot he
major assemblies or th ev ehicle.
Aq ualified specialist workshop ,e .g .ana uthor-
ized Mercedes-Benz Center, will reset th e
ASSYS TP LU Ss ervic ei nterval display after th e
servic ew or kh as been carrie do ut .Y ou can also
obtain further information on maintenance
work, for example.
Special service requirements The specifie dm aintenance interval takes only
th en orma lo peration of th ev ehicl ei nt o
account. Under arduous operating condition so r
increased load on th ev ehicle, maintenance
wor km us tbec arrie do ut mor ef re quently, for
example: R
regular cit yd rivin gw it hf re quen ti ntermediat e
stops R
if th ev ehicl eisp rimarily used to travel short
distances R
use in mountainous terrain or on poor road
surfaces R
if th ee ng in eiso ften lef ti dlin gf or lon gp eriodsR
in particularly dust yc onditi ons, or if air-recir-
culation mod eisf re quentl yu sed
In these or similar operating conditions, hav e
th ei nterior filter, engin ea ir cleaner, engin eo il
and oil filter, for example, changed mor ef re -ASSYST PLUS 261
Maintenance and care Z

X
Make sure that the vehicle is at as tandstill
and the SmartKey is in key position H in the
ignition lock. X
Open the camera cover for cleaning via the
multimedia system (see the separate operat-
ing instructions). X
To clean the rear view camera: use clear
water and as oft cloth to clean camera
lens C .
Cleanin gt he exhaust pipes
G WARNING
The exhaust tail pipe and tail pipe trim can
become very hot. If you come into contact
with these parts of the vehicle, you could burn
yourself. There is ar isk of injury.
Always be particularly careful around the
exhaust tail pipe and the tail pipe trim. Allow
these components to cool down before touch-
ing them.
! Do not clean the exhaust pipe with acid-
based cleaning agents, such as bathroom
cleaner or wheel cleaner.
! Mercedes-AMG vehicles with black exhaust
pipes: the black-chrome tailpipe finishers
should not be polished with ac hrome polish.
They will otherwise lose their black sheen. For
optimal care, the faceplates should be rubbed
with al ightly oiled cloth after every car wash.
Commercially available engine and care oils
are suitable for this.
For heavier soiling, you can apply af ine paint-
work polish with am icrofiber cloth. Remove
the excess polish residue after polishing.
Impurities combined with the effect sofr oad grit
and corrosive environmental factors may cause
flash rust to form on the surface. You can
restore the original shine of the exhaust pipe by
cleaning it regularly ,e specially in winter and
after washing. X
Clean the exhaust pipe with ac are product
tested and approved by Mercedes-Benz. Interior care
Cleanin gt he display
! For cleaning, do not use any of the following: R
alcohol-based thinner or gasoline R
abrasive cleaning agents R
commercially-availabl eh ousehold cleaning
agents
These may damage the display surface. Do
not put pressure on the display surface when
cleaning. This could lead to irreparable dam-
age to the display. X
Before cleaning the display ,m ake sure that it
is switched off and has cooled down. X
Clean the display surface using ac ommer-
cially available microfiber cloth and TFT/LCD
display cleaner. X
Dry the display surface using ad ry microfiber
cloth.
Cleanin gt he plastic trim
G WARNING
Care products and cleaning agents containing
solvents cause surfaces in the cockpit to
become porous. As ar esult, plastic parts may
come loose in the event of air bag deploy-
ment. There is ar isk of injury.
Do not use any care products and cleaning
agents to clean the cockpit.
! Never attach the following to plastic surfa-
ces: R
stickers R
films R
perfume oil container or similar
You could otherwise damage the plastic.
! Do not allow cosmetics, insect repellent or
sunscreen to come into contact with the plas-
tic trim. This maintains the high-quality look of
the surfaces. X
Wipe the plastic trim with ad amp, lint-free
cloth, e.g. am icrofiber cloth. X
Heavy soiling: use care and cleaning prod-
ucts recommended and approved by
Mercedes-Benz.
The surface may change color temporarily.
Wait until the surface is dry again.266
Care
Maintenance and care

system (Canad ao nly) or tire pressure monitor
(USA only).
If ap ressure loss warning message appears
in the multifunction display: R
observe the instructions in the displa ym es-
sages ( Y
page 211).R
check the tire for damage R
if driving on, observe the following notes
The driving distance possible in run-flat mode is
approximately 50 miles (80 km) when the vehi-
cle is partiall yl aden. When the vehicle is fully
laden it is approximately 19 miles (30 km).
In addition to the vehicle load, the driving dis-
tance possible depends upon: R
vehicle speed R
road condition R
outside temperature
The driving distance possible in run-flat mode
may be reduced by extreme driving conditions
or maneuvers, or it can be increased through a
moderate style of driving.
The driving distance possible in run-flat mode is
counted from the moment the tire pressure loss
warning appears in the multifunction display.
You must not exceed am aximum speed of
50 mph (80 km/h).
When replacing one or all tires, please observe
the following specifications for your vehicle's
tires: R
size R
type and R
the "MOExtended" marking
If at ire has gone flat and cannot be replaced
with aM OExtended tire, as tandard tire may be
used as at emporary measure. Make sure that
you use the proper size and type (summer or
winter tire).
Vehicles equipped with MOExtended tires are
not equipped with aT IREFIT kit at the factory. It
is therefore recommended that you additionally
equip your vehicle with aT IREFIT kit if you mount
tires that do not feature run-flat properties, e.g.
winter tires. AT IREFIT kit may be obtained from
aq ualified specialist workshop.
Important safety notes
G WARNING
When driving in emergency mode, the driving
characteristics deteriorate, e.g. when corner- ing, accelerating quickly and when braking.
There is ar isk of an accident.
Do not exceed the stated maximum speed.
Avoid abrupt steering and driving maneuvers,
and driving over obstacles (curbs, potholes,
off-road). This applies in particular to al aden
vehicle.
Stop driving in emergency mode if: R
you hear banging noises. R
the vehicle starts to shake. R
you see smoke and smell rubber. R
ESP ®
is intervenin gc onstantly.R
there are tears in the sidewalls of the tire.
After driving in emergency mode, have the
wheel rims checked at aq ualified specialist
workshop with regard to their further use. The
defective tire must be replaced in every case.
TIREFIT kit
Important safety notes TIREFIT is at ire sealant.
Only valid for USA: You can use TIREFIT to seal
punctures of up to 0.16 in (4 mm), particularly
those in the tire tread. You can use TIREFIT at
outside temperatures down to

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

'OK' to Restart message in the multifunction
displa yint he Serv. menu. Information on the
message displa yc an be found in the "Restarting
the tire pressure loss warning" section
( Y
page 294).
Important safety notes The tire pressure warning system does not warn
you of an incorrectly set tire pressure. Observe
the notes on the recommended tire pressure
( Y
page 290).
The tire pressure loss warning does not replace
the need to regularly check the tire pressure. An
even loss of pressure on several tires at the
same time cannot be detected by the tire pres-
sure loss warning system.
The tire pressure monitor is not able to warn you
of as udden loss of pressure, e.g. if the tire is
penetrated by af oreign object. In the event of a
sudden loss of pressure, bring the vehicle to a
halt by braking carefully .A void abrupt steering
movements.
The function of the tire pressure loss warning
system is limited or delayed if: R
snow chains are mounted on your vehicle's
tires. R
road conditions are wintry. R
you are driving on sand or gravel. R
you adopt av ery sporty driving style (corner-
ing at high speeds or driving with high rates of
acceleration). R
you are driving with ah eavy load (in the vehi-
cle or on the roof)
Restarting the tire pressure loss warn-
ing system Restart the tire pressure loss warning system if
you have: R
changed the tire pressure R
changed the wheels or tires R
mounted new wheels or tires X
Before restarting, make sure that the tire
pressures are set properly on all four tires for
the respective operating conditions.
The recommended tire pressure can be found
on the Tire and Loading Information placard
on the B-pillar. Additionally ,at ire pressure
table is attached to the fuel filler flap. The tire
pressure loss warning system can only give
reliable warnings if you have set the correct tire pressure. If an incorrect tire pressure is
set, these incorrect value sw ill be monitored.X
Also observe the notes in the section on tire
pressures ( Y
page 290). X
Make sure that the SmartKey is in position H
in the ignition lock ( Y
page 122).X
Press Y or e on the steering wheel to
select the Serv. menu.X
Press the c or d button to select
Tire Pressure . X
Press the v button.
The Run Flat Indicator Active Press
'OK' to Restart message appears in the
multifunction display.
If you wish to confirm the restart: X
Press the v button.
The Tire Pressure Now OK? message
appears in the multifunction display. X
Press the c or d button to select Yes .X
Press the v button.
The Run Flat Indicator Restarted mes-
sage appears in the multifunction display.
After at each-in period, the tire pressure loss
warning system will monitor the set tire pres-
sures of all four tires.
If you wish to cance lt he restart:X
Press the 8 button.
or X
If the Tire Pressure Now OK? message
appears, press the c or d button to
select Cancel . X
Press the v button.
The tire pressure value ss tored at the last
restart will continue to be monitored.
Tire pressure monitor (Canada only)
General notes If at ire pressure monitor is installed, the vehi-
cle's wheels have sensors that monitor the tire
pressures in all four tires. The tire pressure mon-
itor warns you if the pressure drops in one or
more of the tires. The tire pressure monitor only
functions if the corresponding sensors are
installed in all wheels.
Information on tire pressures is displayed in the
multifunction display. After af ew minutes of
driving, the current tire pressure of each tire is294
Tire pressure
Wheels and tires

shown in the Serv. menu of the multifunction
display, see illustration (example).
For information on the message display, refer to
the "Checking the tire pressure electronically"
section ( Y
page 296).
Important safety notes
G WARNING
Each tire, including the spare (if provided),
should be checked at least once every two
weeks when cold and inflated to the pressure
recommended by the vehicle manufacturer
on the Tire and Loading Information placard
on the driver's door B-pillar or the tire pres-
sure label on the inside of the fuel filler flap. If
your vehicle has tires of ad ifferent size than
the size indicated on the Tire and Loading
Information placard or, if available, the tire
pressure label ,y ou should determine the
proper tire pressure for those tires.
As an added safety feature, your vehicle has
been equipped with at ire pressure monitoring
system (TPMS) that illuminates al ow tire pres-
sure telltale when one or more of your tires
are significantly underinflated. Accordingly,
when the low tire pressure telltale lights up,
you should stop and check your tires as soon
as possible ,a nd inflate them to the proper
pressure. Driving on as ignificantly underin-
flated tire causes the tire to overheat and can
lead to tire failure.
Underinflation also reduces fuel efficiency
and tire tread life, and may affect the vehicle's
handling and stopping ability. Please note that
the TPMS is not as ubstitute for proper tire
maintenance, and it is the driver's responsi-
bility to maintain correct tire pressure, even if
underinflation has not reached the level to trigger illumination of the TPMS low tire pres-
sure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when
the system is not operating properly. The
TPMS malfunction indicator is combined with
the low tire pressure telltale. When the sys-
tem detects am alfunction, the warning lamp
will flash for approximately am inute and then
remain continuously illuminated. This
sequence will be repeated every time the vehi-
cle is started as long as the malfunction
exists. When the malfunction indicator is illu-
minated, the system may not be able to detect
or signal low tire pressure as intended.
TPMS malfunctions may occur for av ariety of
reasons, including the installation of incom-
patible replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functionin gp roperly. Always check the
TPMS malfunction telltale after replacing one
or more tires or wheels on your vehicle to
ensure that the replacement or alternate Tires
and wheels allow the TPMS to continue to
function properly.
It is the driver's responsibility to set the tire
pressure to that recommended for cold tires
which is suitable for the operating situation
( Y
page 290). Note that the correct tire pressure
for the current operating situation must first be
taught-in to the tire pressure monitor. If as ub-
stantial loss of pressure occurs, the warning
threshold for the warning message is aligned to
the taught-in reference values. Restart the tire
pressure monitor after adjusting the pressure of
the cold tires ( Y
page 297). The current pres-
sures are saved as new reference values. As a
result, aw arning message will appea rift he tire
pressure drops significantly.
The tire pressure monitor does not warn you of
an incorrectly set tire pressure. Observe the
notes on the recommended tire pressure
( Y
page 290).
The tire pressure monitor is not able to warn you
of as udden loss of pressure, e.g. if the tire is
penetrated by af oreign object. In the event of a
sudden loss of pressure, bring the vehicle to a
halt by braking carefully .A void abrupt steering
movements. Tire pressure 295
Wheels and tires Z