2017 MERCEDES-BENZ SLC-Class overheating

In addition to driving style, the actual consump-
tion is affected by other factors, such as:
Rload
Rtire pressure
Rcold start
Rchoice of route
Ractive electrical consumers
These factors are not include dinthe ECO dis-
play.
An economical driving style specially requires
driving at moderate engine speeds.
Achieving ahigher valu einthe categories
"Acceleration" and "Constant":
Robserve the gearshift recommendations.
Rdrive the vehicle in drive program Cor E.
On long journeys at aconstant speed,e .g. on the
highway, only the outer area for "constant" will
change.
The ECO display summarizes the driving style
from the start of the journey to its completion.
Therefore, there are more marked changes in
the outer area satthe start of ajourney. On lon-
ger journeys, there are fewer changes. For more
marked changes, perform amanua lrest
(
Ypage 167).
For more information on the ECO display, see
(
Ypage 166).
Braking
Important safety notes
GWARNING
If you shift down on aslippery road surface in
an attempt to increase the engine's braking
effect, the drive wheel scould lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on aslippery road surface.
Downhill gradients
!On long, steep gradients, you must reduce
the load on the brakes. To use engine braking,
shift to alowerg ear in good time. This helps
you to avoid overheating the brakes and wear-
ing them out excessively. When making use of the engine braking
effect, it is possible that
adrive wheel may not
turn for some time, e.g. in the case of sud-
denly changing or slippery road surface con-
ditions. This could cause damage to the drive
train. This type of damage is not covered by
the Mercedes-Benz warranty.
Change into alowerg ear in good time on long
and steep downhill gradients. This is especially
important if the vehicle is laden.
This also applies if you have activated cruise
control or Distance PilotD ISTRONIC.
Heavy and light loads
GWARNING
If you rest you rfoot on the brake pedalw hile
driving, the braking system can overheat. This increases the stopping distance and can even
cause the braking system to fail .There is a
risk of an accident.
Never use the brake pedalasaf ootrest. Never
depresst he brake pedala nd the accelerator
pedalatt he same time.
!Depressing the brake pedalc onstantly
results in excessive and premature wea rto
the brake pads.
If the brakes have been subjected to aheavy
load ,don ot stop the vehicle immediately ,but
drive on for ashort while. This allows the airflow
to cool the brakes more quickly.
Wet roads
If you have driven for along time in heavy rain
withou tbraking, there may be adelayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has
been washed or driven through deep water.
You then have to depresst he brake pedalmore
firmly.M aintainagreater distance from the
vehicle in front.
After driving on awet road or having the vehicle
washed, brake firmly whil epaying attention to
the traffic conditions. This willw arm up the
brake discs, thereby drying them more quickly
and protecting them against corrosion.
136Driving tips
Driving and parking

brake system and prevents the brakes from
overheating and wearing too quickly.
Use cruise control only if road and traffic con-
ditionsmake it appropriate to maintain asteady
speed for aprolonged period. You can stor eany
road speed above 20 mph (30 km/h).
Important safetyn otes
If you fail to adapt your driving style, cruise con-
trol can neither reduce the risk of an accident
nor override the laws of physics. Cruise control
cannot take intoaccountt he road, traffic and
weather conditions. Cruise control is only an
aid. You are responsible for the distance to the
vehicle in front, for vehicle speed, for brakin gin
good time and for staying in lane.
Do not use cruise control:
Rin road and traffic condition swhich do not
allow you to maintain aconstan tspeed e.g. in
heavy traffic or on winding roads
Ron slippery road surfaces.B raking or accel-
eratin gcould cause the drive wheels to lose
traction and the vehicle could then skid
Rwhen ther eispoor visibility, e.g. due to fog,
heavy rain or snow
If ther eisac hangeofd rivers, advise the new
driver of the speed stored.
Cruise control lever
:Stores the currents peed orahigher speed
;Storing the currents peed or calling up the
last stored speed
=Stores the currents peed oralower speed
?Deactivatin gcruise control
When you activate cruise control, the stored
speed is shown in the multifunction display for
five seconds. The speed is then permanently
displayed in the status indicator together with
the ¯ symbol. On vehicles with
asegmentr ing in the speed-
ometer, the segments from the currently saved speed to the end of the segmentr ing light up.
Storing, maintaining and calling up a
speed
Storing and maintainingaspeed
XAcceleratet he vehicle to the desired speed.
XBriefly press the cruise control lever up :or
down ?.
XRemove your foot from the accelerator pedal.
Cruise control is activated. The vehicle auto-
matically maintains the stored speed.
You can stor ethe currents peed if you are driv-
ing faster than 20 mph (30 km/h).
iCruise control may be unable to maintain
the stored speed on uphill gradients. The
stored speed is resumed when the gradient
evens out. Cruise control maintains the
stored speed on downhill gradient sbyauto-
matically applying the brakes.
Storing or calling up aspeed
GWARNING
If you call up the stored speed and it differs
from the currents peed, the vehicle acceler-
ates or decelerates. If you do not know the
stored speed, the vehicle could accelerateo r
brake unexpectedly. There is arisk of an acci-
dent.
Pay attention to the road and traffic condi-
tion sbefore calling up the stored speed. If you
do not know the stored speed, stor ethe
desired speed again.
XBriefly pull the cruise control lever towards
you =.
XRemove your foot from the accelerator pedal.
The first time cruise control is activated, it
stores the currents peed or regulates the
speed of the vehicle to the previously stored
speed.
Driving systems139
Driving and parking
Z

Filling capacities
The followingvalue srefer to an oil chang e
includin gthe oil filter.
ModelCapacit y
SLC 3006.7USq t(6.3 l)
Mercedes‑Benz
SLC 43 AMG6.9 US qt (6.5 l)
Additives
!Do not us eany additive sinthe engine oil.
Thi scould damag ethe engine.
Brake fluid
GWARNING
The brake fluid constantly absorb smoisture
from the air. Thi slowers the boiling point of
the brake fluid .Ifthe boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. Thi swould impai rbraking efficiency.
There is ariskofana ccident.
Yo us houl dhavet he brake fluid renewe dat
the specified intervals.
Whe nhandling brake fluid ,observe the impor-
tant safety notes on service products
(
Ypage 284).
The brake fluid change interval scan be found in
the Maintenance Booklet.
Only us ebrake fluid approved by Mercedes-
Benz in accordance with MB-Freigab eorMB-
Approva l331.0.
Information abouta pproved brake fluid can be
obtaine datany qualified specialist workshopo r
on the Interne tat
http://bevo.mercedes-benz.co m.
iHave the brake fluid regularly replaced at a
qualified specialist workshop and the replace-
ment confirmed in the Maintenance Booklet.
Coolant
Importan tsafety notes
GWARNING
If antifreeze comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is arisk of fire and injury.
Let the engine cool dow nbefore yo uadd anti-
freeze .Make sur ethat antifreeze is not spilled
next to the filler neck. Thoroughly clea nthe
antifreeze from components before starting
the engine.
!Only ad dcoolant that has bee npremixed
with the desire dantifreeze protection. You
coul dotherwise damag ethe engine.
Furthe rinformatio noncoolants can be found
in the Mercedes-Benz Specifications for Ser-
vice Products, MB BeVo 310.1, e.g. on the
Internet at http://bevo.mercedes-benz.com.
Or contact aqualifie dspecialist workshop.
!Always use asuitabl ecoolant mixture, even
in countries where hig htemperatures prevail.
Otherwise ,the engine cooling system is not
sufficiently protected from corrosion and
overheating.
iHave the coolant regularly replaced at a
qualified specialist workshop and the replace-
ment confirmed in the Maintenance Booklet.
Comply with the important safety precautions
for service products whe nhandling coolant
(
Ypage 284).
The coolant is amixture of water and anti-
freeze/corrosion inhibitor. It is responsible for
the following:
RAnti-corrosion protection
RAntifreeze protection
RRaising the boiling point
If the coolant has antifreeze protection dow nto
-35 ‡(-37 †), the boiling point of the coolant
during operation is approximatel y266 ‡
(130 †).
Service products and filling capacities287
Technical data
Z