2017 MERCEDES-BENZ SLC-Class low oil pressure

GWARNING
If engine oil comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is arisk of fire and injury.
Make sure that engine oil is not spilled next to
the filler neck. Let the engine cool downa nd
thoroughly clea nthe engine oil off the com-
ponents before starting the engine.
HEnvironmental note
When adding oil,t ake care not to spil lany. If
oil enters the soil or waterways, it is harmfu lto
the environment.
!Only use engine oilsa nd oil filters that have
been approved for vehicles with aservice sys-
tem. You can obtai nalist of the engine oils
and oil filters tested and approved in accord- ance with the Mercedes-Benz Specifications
for Service Products at any Mercedes-Benz
Service center.
Damag etothe engine or exhaust system is
caused by the following:
Rusing engine oilsa nd oil filters that have not
been specifically approved for the service
system
Rreplacing engine oil and oil filters after the
interval for replacement specified by the
service system has been exceeded
Rusing engine oil additives.
!Do not add too much oil.Ift he oil levelis
above the "max" mark on the dipstick, too
much oil has been added. This can lea dto
damage to the engine or the catalytic con-
verter. Have excess oil siphoned off.
Example :engine oil cap
XTurn cap :counter-clockwise and remove it.
XAdd engine oil.
If the oil leve lisatorbelow the MIN mark on
the oil dipstick, add 1.1 US qt (1.0 liter) of
engine oil.
XReplace cap :on the filler neck and turn
clockwise.
Ensure that the cap locks into place securely.
XCheck the oil leve lagain with the oil dipstick
(Ypag e232).
Further information on engine oil (
Ypag e286).
Checkin gand adding other service
products
Checkin gcoolantl evel
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible,l et the engine cool downa nd
touch only the components described in the
following.
GWARNING
The cooling system is pressurized, particularly
when the motor is warm .Ifyou open the cap,
you coul dbescalded if hot coolant sprays out.
There is arisk of injury.
Let the engine cool downb efore you open the
cap. Wearg lovesand eye protection. Slowly
open the cap to relieve pressure.
Example
Engine compartment233
Maintenance and care
Z

XPark the vehicle onalevel surface.
Only check the coolant level when the vehicle is on alevel surface and the engine has cooled
down.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 115).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Ypage 115).
XCheck the coolant temperature gauge in the
multifunction display.
The coolant temperature must be below
158 ‡(70 †).
XTurn the SmartKey to position 0(Ypage 115)
in the ignition lock.
XSlowly turn cap ;half aturn counter-clock-
wise to allow excess pressure to escape.
XTurn cap ;further counter-clockwise and
remove it.
If the coolant is at the level of marker bar =
in the filler neck when cold, there is enough
coolant in coolant expansion tank :.
If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar =in the fuel filler
neck when warm, there is enough coolant in
expansion tank :.
XIf necessary, add coolant that has been tested
and approved by Mercedes-Benz.
XReplace cap;and turn it clockwise as far as
it will go.
For further information on coolant ,see
(
Ypage 287).
Windshield washer system
GWARNING
Certain components in the engine compart-
ment ,such as the engine, radiator and parts
of the exhaust system, can become very hot.
Workin ginthe engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
GWARNING
Windshield washer concentrate could ignite if it comes into contact with hot engine compo-
nentsort he exhaust system. There is arisk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
Example
XTo open: pull cap:upwards by the tab.
XAdd the premixed washer fluid.
XTo close: press cap :ontothe filler neck
until it engages.
If the washer fluid level drops below the recom-
mended minimum fluid level of 1USgal (1 liter),
am essage appears in the multifunction display
promptin gyou to add washer fluid (
Ypage 201).
Further information on windshield washer fluid/
antifreeze (
Ypage 288).
Overview of the engine compartment
Example: gasoline engine
:
Engine oil cap
;Oil dipstick
=Brake fluid reservoir
?Washer fluid reservoir
ACoolant expansion tank
234Overview of the engine compartment
Maintenance and care

!Make sure that:
Rthe side windows and the roof are com-
pletely closed
Rthe climate control blower is switched off
Rthe windshieldwiper switch is at position 0
The vehicle could otherwise be damaged.
You can wash the vehicle in an automatic car
wash from the very start.
If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
After using an automatic car wash, wipe off wax
from the windshielda nd the wiper blades. This
will prevent smears and reduce wiping noises
caused by residue on the windshield.
Washing by hand
In some countries, washing by hand is only
allowed at speciallye quipped washing bays.
Observe the legal requirements in each country.
XDo not use hot water and do not wash the
vehicle in direct sunlight.
XUse asoft sponge to clean.
XUse amild cleaning agent, such as acar
shampoo approved by Mercedes-Benz.
XThoroughly hose down the vehicle with agen-
tle jet of water.
XDo not point the water jet directly towards the
air inlet.
XUse plenty of water and rinse out the sponge
frequently.
XRinse the vehicle with clean water and dry
thoroughly with achamois.
XDo not let the cleaning agent dry on the paint-
work.
Carefully remove all deposits of road salt as
soon as possible when driving in winter.
Powerw ashers
GWARNING
The water jet from acircular jet nozzle (dirt
blasters) can cause invisible exterior damage
to the tires or chassis components. Compo-
nentsd amagedint his way may fail unexpect-
edly.T here is arisk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis componentsr eplaced imme-
diately.
!Alwaysm aintainadistance of at least
11.8 in (30 cm) between the vehicle and the
power washer nozzle. Information aboutt he
correct distance is available from the equip-
ment manufacturer.
Move the power washer nozzle around when
cleaning your vehicle.
Do not aim directly at any of the following:
RTires
RDoor gaps, roof gaps, joints, etc.
RSoft top (Designo retractable hardtop)
RElectrical components
RBattery
RConnectors
RLights
RSeals
RTrim
RVentilation slots
Damaged seals or electrical componentsc an
lead to leaks or failures.
!Do not use high-pressure cleaners if the
tank recess is open while you clean it. This
can cause damage to the seals or other com-
ponents.
Cleaning the paintwork
!Do not affix:
Rstickers
Rfilms
Rmagnetic plates or similari tems
to painted surfaces. You could otherwise
damage the paintwork.
Scratches, corrosive deposits, areas affected by
corrosion and damage caused by inadequate
care cannot always be completely repaired. In
such cases, visit aqualified specialist workshop.
XRemove dirt immediately,w here possible,
while avoiding rubbing too hard.
XSoak insect remains with insect remover and
rinse off the treated areas afterwards.
XSoak bird droppings with water and rinse off
the treated areas afterwards.
XRemove coolant, brake fluid, tree resin, oils,
fuels and greases by rubbing gently with a
Care237
Maintenance and care
Z

XRemove filler hoseB and plug =from th e
botto msection of th etirei nflation compres-
sor housing .
XSlide theyellow filler hos econnector intothe
mounting on yellow cap Aof tire sealan tbot-
tl e : until th eplug engages.
XWit hthe sealing rings in front, slid eyellow cap
A of tire sealan tbottl e: intothe mounting
of tire inflation compressor ;.
The cap mus tengage in bot hhooks .
XRemove th ecap from valv eC on th efault y
tire.
XScrew filler hos eD onto th evalve.
XInser tplug =intothe cigarette lighte rsocke t
(Ypage 221) or int oa12Vpower socke tin
your vehicl e(Ypage 221).
XTurn theSma rtKey to position 1in th eignition
loc k(Ypage 115).
XPress on and off switch ?on th etirei nflation
compressor to ON.
The tire inflation compressor is switched on .
The tire is inflated.
First ,tires ealan tispumped int othe tire. The
pressur emay briefly ris etoapproximately
50 0k Pa(5.0b ar/7 3psi). Do not switch off th
etirei nflation com -
pressor during this phase .
XLet thetirei nflation compressor run for a
maximum of te nminutes. The tire should then
hav eattained apressur eofatl east 200kPa
(2. 0b ar/29 psi) .
If at irep ressur eof200 kPa( 2.0b ar/29 psi) is
achieved after amaximum of te nminutes, see
(
Ypage 245).
If at irep ressur eof200 kPa( 2.0b ar/29 psi) is
no ta chieved after amaximum of te nminutes,
see (
Ypage 244).
If tire sealan thas escaped, clean it off affecte d
areas as quickly as possible. Use plain water if
possible.
If your clothes are soiled wit htires ealant, hav e
them cleane dwithp erchloroethylen eatadry
cleane rassoo
nasp o
ssible.
Tire pressure not reached
Ifat irep ressur eof200 kPa(2.0 bar/29 psi) has
beena chieved after ten minutes:
XSwitch off the tire inflation compressor.
XUnscrew the filler hose from the valve of the
faulty tire.
Note that tire sealant may escap ewheny ou
unscrew the filler hose.
XVery slowly drive forwards or reverse approx- imately 30 ft (10 m).
XPump up the tire again.
After amaximu moften minutes ,the tire pres-
sure must be at least 200 kPa (2.0 bar/
29 psi).
GWARNING
If the required tire pressure is not reached
after the specified time, the tire is too badly
damaged. The tire sealant cannot repair the
tire in this instance. Damaged tires and atire
pressure that is too low can significantly
impair the vehicle's braking and driving char-
acteristics. There is arisk of accident.
Do not continue driving. Contact aqualified
specialist workshop.
244Flat tire
Breakdowna ssistance