2019 MERCEDES-BENZ GLC COUPE air filter

Overview of climate control sy
stems Note
s on climate control An interior air
filter in combination with the pre‐
fi lter in the engine compartment must alw ays be
used so that the air conditioning sy stem, pollu‐
tion lebutton vel monitoring and the air filtration
wo rkcor rectly. Ma kesure that thefilter is ins tal‐
led cor rectly and thefilter housing in the engine
compartment is closed cor rectly using the cap
and alw ays tightly sealed when in operation. Use
fi lters recommended and appr ovedby
Mercedes-Benz. Alw ays ha veservice workcar‐
ri ed out at a qualified specialist workshop. THERMATIC control panel
overview The indicator lamps on
the buttons indicate that
th e cor responding function is activated.
Plug-in hybrid: be sure toobser vethe no tes in
th e Supplement. Otherwise, you may failto rec‐
ognise dangers. 1
w Setsthete mp erature, left
2 _ Setsthe air distribution
3 H Setsthe air flow or switches off climate
control
4 Ã Sets climate control toautomatic
mode (/ page155)
5 ¬ Defrosts the windscreen 6
Vehicles without a stationary heater: t
calls up the air conditioning menu
Ve hicles with a stationary heater: !calls
up the air conditioning menu, switches the
re sidual heat on/off (/ page157)
7 ¤ Switches there ar wind owheater
on/off
8 Vehicles without a stationary heater: 0
swit ches the synchronisation on/off
(/ page 156)
Ve hicles with a stationary heater: &
swit ches thest ationary heater on/off
(/ page 159)
9 g Switches ai r-re circulation mode on/off
(/ page 157)
A ¿ Switches the A/C function on/off
(/ page 155)
B w Setsthete mp erature, right THERMOT
RONIC control panel overview The indicator lamps on
the buttons indicate that
th e cor responding function is activated. Climate
control 15 3

fi
ed based on the actual operating conditions
and/or loads.
Examples of arduous operating conditions:
R regular city driving with frequent intermedi‐
ate stops
R mainly short-dis tance driving
R frequent operation in mountainous terrain or
on poor road sur faces
R when the engine is of ten le ftidling for long
periods
R operation in particula rly dusty conditions
and/or if air-recirculation mode is frequently
used
In these or similar operating conditions, ha vethe
interior air filter, engine air cleaner, engine oil
and oil filter etc. changed more frequent ly. The
ty re s must be checked more frequently if the
ve hicle is operated under increased loads. Fur‐
th er information can be obtained at a qualified
specialist workshop. Battery disconnection periods
The ASS
YST PLUS se rvice inter val display
can only calculate the service due da tewhen
th e bat tery is connected. #
Notedown the service due date displa yed on
th e instrument display before disconnecting
th e battery (/ page 460). Engine compartment
Ac
tive bonn et(pedestrian pr otection) Operation of
the active bonnet (pedestrian
pr otection)
In cer tain accident situations, therisk of injury
to pedestrians can be reduced bythe actuation
of the active bonn et. The rear area of the bonn et
is raised byappr oximately 85 mm.
Fo rth e drive tothewo rkshop, reset the trig‐
ge red active bonn etyourself. Af terth e active
bonn ethas been triggered, pedestrian pr otection
may be limited.
A qu alified specialist workshop must re-ins tate
th e full functionality of the active bonn et. The active bonnet is not
available in all coun‐
tries.
Re setting the active bonnet &
WARNING Risk of bu rns from hot com‐
ponent parts in the engine compartment
Cer tain components in the engine compart‐
ment can be very hot, e.g. the engine, the
ra diator and parts of theex haust sy stem. #
Allow the engine tocool down and only
to uch co mponent parts described in
th efo llowing. Maintenance and care
461

The
following values referto an oil change,
including the oil filter.
Re placement amount Mode
lR eplacement
amount
GLC 300 d 4MATIC 6.8 litres
GLC 400 d 4MATIC 8.0 litres
All other models 6.0 litresNote
s on brake fluid Obser
vethe no tes on operating fluids
(/ page 526). &
WARNING Risk of an accident due to
va pour poc kets form ing in the brake sys‐
tem
The brake fluid cons tantly absorbs moi sture
from the air. This lo wersthe boiling point of
th e brake fluid. If the boiling point is too lo w,
va pour poc kets may form inthe brake sys‐
te m when the brakes are applied hard. This impairs
the braking ef fect. #
Have the brake fluid rene we d at the
specified inter vals. Ha
ve the brake fluid regularly replaced at a
qu alified specialist workshop.
Only use brake fluid appr ovedby Mercedes-Benz
according toMB-F reigabe or MB-Appr oval 33 1.0.
Yo u can obtain fur ther information on brake fluid
in thefo llowing places:
R inthe Mercedes-Benz Specifications for
Operating Fluids
- at http://be vo.mercedes-benz.com
- inthe Mercedes-Benz BeVo App
R at a qualified specialist workshop Coolant
Note
s on coolant
Obser vethe no tes on operating fluids
(/ page 526). &
WARNING Risk offire ‑ and inju ryfrom
antifreeze
If antifreeze comes into contact with hot
component parts in the engine compart‐
ment, it may ignite. #
Allow the engine tocool down before
yo uto p up the antif reeze. #
Make sure that no antifreeze spills out
next tothefiller opening. #
Thoroughly clean the antif reeze from
component parts before starting the
ve hicle. *
NO
TEDama gecaused byincor rect cool‐
ant #
Only add coolant that has been pre‐
mixed with therequ ired antifreeze pro‐
te ction. Te
ch nical da ta533

Display messages
Possible causes/consequences and M
MSolutions
If th eMotor can be started again display message does not appear af ter a few minutes: #
Tryto start the engine again. #
Ifth e engine does not start, consult a qualified specialist workshop.
8
Reserve fuel level *T
he fuel supply has dropped into there ser verange. #
Refuel.
!
Clean the fuel filter *
Ve hicles with diesel engines: the fuel filter is dirty or thewate r inthe fuel filter needs tobe drained. #
Consult a qualified specialist workshop.
¸ Replace air cleaner *
Ve hicles with diesel engines: the engine air filter is dirty and must be replaced. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 567

¯
AdBlue sy stem fault Engine
st art not possible ................................ .573
¯ AdBlue sy stem fault See Own‐
er's Manual .......................................... 572
5 Add 1 litre engine oil when next
re fuelling ............................................. 568
Apply brake todeselect Park (P)
position ................................................ 574
App lybrake toselect R ........................ 574
é ATTENTION ASSIST inoperative ... 552
éAT TENTION ASSIS T:Take a
break! .................................................. 553
bAu tomatic driving lights inoper‐
ative .................................................... 589
Au xilia rybattery malfunction ...............575
Beginning eme rgency stop .................. 556
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 557
Blind Spot Assist inope rative ............... 557 Blind Spot Assi
stnot available when
to wing a trailer See Owner's Manual ...5 58
Cannot start engine See Owner's
Manual ................................................ 566
ÁChan gekey bat teries .................. 580
JCheck brake fluid le vel................ 546
Check brake pads See Owner's Man‐
ual ...................................................... .547
5 Check eng. oil le v.when next
re fuelling ............................................. 568
ï Checktrailer hitch lo ck(white
display message) .................................5 82
hChe cktyre(s) ............................... 577
! Clean the fuel filter ...................... 567
?Coolant Stop vehicle Switch
engine off ............................................ 563
Cruise contro l and Limiter inope ra‐
tive ....................................................... 561
Cruise control inope rative .................... 561
Cruise control off ................................. 561 !cu
rrently unavailable See Own‐
er's Manual ........................................ .539
÷cur rently una vailable See Own‐
er's Manual ........................................ .540
5Engine oil le vel cannot be
measured ............................................ 570
5 Engine oil le velRe duce oil le vel...5 69
5Engine oil le velSt op vehicle
Switch engine off ................................ 569
5Engine oil pressure Stop Switch
off engine ............................................ 570
ä Fault Drive at max. 80 km/h .......555
6Fr ont left malfunction Consult
wo rkshop (e xample)............................ 548
Fr ont-passenger airbag disabled See
Owner's Manual ..................................5 49
Fr ont-passenger airbag enabled See
Owner's Manual ..................................5 49
Hazard warning lamps malfunction‐
ing ...................................................... .591 61 8
Index