2011 MERCEDES-BENZ E-CLASS COUPE cooling

Setting the centre air vents
:
Centre air vent,l eft
; Centre air vent,r ight
= Centre vent thumbwheel, right
? Centre vent thumbwheel, left
X To open/close: turn thumbwheels =
and ?up or down. Setting the side air vents
X
To open/close: turn thumbwheel =up or
down.
i Side window demister vent :is never
completely shut, even if side air vent ;is
shut. Setting the glove compartment air
vent
When automatic climate control is activated,
the glove compartmen tcan be ventilated, for
instance to cool its contents .The level of air- flow depends on the airflow and air distribu-
tion settings.
!
Close the air vent when heating the vehi-
cle.
At high outside temperatures, open the air
vent and activate the "cooling with air dehu-
midification" function. Otherwise, temper-
ature-sensitive items stored in the glove
compartmentc ould be damaged. :
Air vent thumbwheel
; Air vent
X To open/close: turn thumbwheel :
clockwise or anti-clockwise. Setting the rear-compartment air
vents
Setting the centre vents in the rear com-
partment :
Rear-compartment air vent thumbwheel
; Rear-compartment air vent,r ight142
Adjusting the air ventsClimate control

Problem Possible causes/consequences and
M Solutions
?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator
may be blocked or the electric engine radiator fan may be mal-
functioning.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X
Observe the additional display messages in the multifunction
display.
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
X Let the engine and coolant cool down.
X Check the coolant level and top up the coolant (Y page 283).
Observe the warning notes as you do so.
X If you have to top up the coolant frequently, have the engine
cooling system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by frozen slush.
X If the coolant temperature is less than 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop-start traffic. ?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning.
Awarning tone
also sounds. The coolant temperature has exceeded 120 †. The airflow to the
engine radiator may be blocked or the coolant level may be too
low.
The engine is not being cooled sufficiently and may be damaged.
X
Observe the additional display messages in the multifunction
display.
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
X Let the engine and coolant cool down.
X Check the coolant level and top up the coolant (Y page 283).
Observe the warning notes as you do so.
X If you have to top up the coolant frequently, have the engine
cooling system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by frozen slush.
X If the coolant temperature is less than 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop-start traffic. Warning and indicator lampsint
he instrument cluster
261On-board computer and displays Z

X
Slowl yslide oi ldipstick :into the guide
tub etot he stop ,and take it ou tagain.
The oil level is correc tifthe level is between
MIN mark =and MAX mark ;.
X Top up the oil if necessary.
Adding engine oil H
Environmental note
When topping up the oil, take care not to spill
any. If oil enters the soil or waterways, it is
harmful to the environment. G
WARNING
If engine oil comes into contact with hot
engine parts, it may ignite and you could burn
yourself. Do not spill any engine oil on hot
engine parts. Example: engine oil cap
X
Turn cap :anti-clockwise and remove it.
X Top up with the amount of oil required.
Fill carefully to the maximum mark on the oil
dipstick.
i Depending on the engine, the difference
between the minimum mark and the maxi-
mum mark is approximately 1.5 –2litres.
! Do not add too much oil. If the oil level is
above the "max" mark on the dipstick, too
much oil has been added. This can lead to
damage to the engine or the catalytic con-
verter. Have excess oil siphoned off.
For further information on engine oil, see
(Y page 335). X
Replace cap :on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely. Checking and adding other service
products
Checking the coolant level Only check the coolant level when the vehicle
is on alevel surface and the engine has cooled
down.
X Turn the key to position 2(Y page 147) in
the ignition lock.
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Y page 147).
X Check the coolant temperature displayin
the instrumentc luster. G
WARNING
The cooling system is pressurised. Therefore,
only unscrew the cap once the engine has
cooled down. The coolant temperature gauge
must display less than 70 †.Otherwise, you
could be scalded if hot coolant escapes. X
Slowl yturnc ap : half aturna nti-clock-
wise and allow exces spressure to escape.
X Turn cap :further anti-clockwis eand
remove it.
If th ecoolan tisatt heleve lofm arkerbar
= in th efille rneck when cold, there is
enough coolant in coolant expansion
tank ;. Engine compartment
283Maintenance and care Z

Coolant
Important safety notes The coolan
tisamixture of water and anti-
freeze/corrosion inhibitor. It performs the
following tasks:
R anti-corrosion protection
R antifreeze protection
R raising the boiling point
i When the vehicle is first delivered, it is fil-
led with acoolant mixture that ensures
adequate antifreeze and corrosion protec-
tion.
! Only add coolant that has been premixed
with the desired antifreeze protection. The
engine could otherwise be damaged.
Further information on coolants and on fill-
ing can be found in the Mercedes-Benz
Specifications for Service Products, MB
Approval 310.1,e .g. on the Internet at
http://bevo.mercedes-benz.com .You can
also consult aMercedes-Benz Service
Centre.
! Always use asuitable coolant mixture,
even in countries where high temperatures
prevail.
Otherwise, the cooling system will not be
sufficiently protected from corrosion ,and
the boiling point will be too low.
If antifreeze/corrosion inhibitor is present in
the correc tconcentration, the boiling point of
the coolant will be around 130 †.
The antifreeze/corrosion inhibitor concentra-
tion in the engine cooling system should:
R be at least 50%. This will protec tthe engine
cooling system against freezing down to
around -37 †.
R not exceed 55% (antifreeze protection
down to -45 †);otherwise, heat will not be
dissipated as effectively. If the vehicle has lost coolant, top it up with
equal amount
sofwater and antifreeze/cor-
rosion inhibitor. Mercedes-Benz recom-
mends an antifreeze/corrosion inhibitor
which has been approved for Mercedes-Benz.
! The engin ecoolin gsystem is filled with
coolan tthat must be renewed after 15
years, or after 250,000 km at the latest. Vehicle data
Vehicle data,
E200 BlueEFFICIENCY Vehicle dimensions
Vehicle length (ECE)
Coupé
469
8mm Cabriolet
469
8mm Vehicle width including exterior mirrors
Coupé
202
8mm Cabriolet
201
5mm Vehicle width withou
texterior mirrors Coupé
178
6mm Cabriolet
178
6mm Vehicle height
41 Coupé
139
3mm Cabriolet
140
2mm Vehicle height when opening/closing
ther
oof42 Cabriolet
Wheelbase
Coupé
276
0mm Cabriolet
276
0mm 41
The values specified may differ from the actual values, dependin gonthe tyres ,load, optional equipment
and the stat eofthe suspension.
42 Missin gvalues were not available at the time of going to print. Vehicle data
337Technical data Z

Vehicl
edimensions Vehicl
eheight 55 Coupé
1397 mm
Cabriolet
1402 mm
Vehicl
eheight when opening/closing
the roof 56 Cabriolet
Wheelbase
Coupé
2760 mm
Cabriolet
2760 mm
Vehicl
eweigh ts Unlade
nweigh t(in accordance with EC
Directive) 56 Coupé
Cabriolet
The unladen weight includes the driver
(68 kg), luggage (7 kg) and al
lfluid s(fuel
tank 90% full) .Items of optional equipment
increase the unladen weight and reduc ethe
maximum payload. Maximum roof
load, Coupé only
100 kg
Maximum boot
load
100 kg
Vehicle-specifi
cweight information can be
found on the vehicle identification plate
(Y page 333). Boot lid opening dimensions
:
Openin gheight :
Coupé
1678–1
683mm Cabriolet
1550mm
i
The values specified may differ from the
actual values, depending on the tyres, load,
optional equipment and the stat eofthe
suspension. Trailer tow hitch
Mounting dimensions
G
WARNING
Only have atrailer tow hitc hretrofitted at a
qualified specialist worksho pwhich has the
necessary specialist knowledge and tools to
carry out the work required. Mercedes-Benz
recommends that you use aMercedes-Benz
Service Centr efor this purpose. In particular,
work relevant to safety or on safety-related
systems must be carried out at aqualified
specialist workshop.
! If you have atrailer tow hitc hretrofitted,
changes to the cooling system may be nec-
essary, depending on the vehicle type.
55 The values specified may differ from the actual values, depending on the tyres, load, optional equipment
and the state of the suspension.
56 Missing values were not available at the time of going to print. Trailer tow hitch
343Technical data Z