Mercedes-Benz 2011 CL-Class, Operator'S Manual

Page: 410 / 480

coolant reservoir contains hot fluid and is
under pressure.
R
using a rag, slowly turn the cap
approximately
1
/
2
turn to relieve excess
pressure. If opened immediately, scalding
hot fluid and steam will be blown out under
pressure.
R
do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts.
X
Slowly turn cap
:
half a turn counter-
clockwise and allow excess pressure to
escape.
X
Turn 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 is approximately 0.6 in
(1.5 cm) above marker bar
=
in the filler
neck when warm, there is enough coolant
in coolant expansion tank
;
.
X
If necessary, add coolant that has been
tested and approved by Mercedes-Benz.
X
Replace cap
:
and turn it clockwise as far
as it will go.
For further information on coolant, see
(
Y
page 473).
Windshield washer system/headlamp
cleaning system
The washer fluid reservoir is used for both the
windshield washer system and the headlamp
cleaning system.
G
Warning
Washer solvent/antifreeze is highly
flammable. Do not spill washer solvent/
antifreeze on hot engine parts, because it may
ignite and burn. You could be seriously
burned.
! At temperatures below freezing, always
fill the washer fluid container with a mix of
windshield washer concentrate and
antifreeze additive. There is otherwise a
risk of damaging the windshield washer
system/headlamp cleaning system.
! Only use washer fluid concentrate which
is suitable for plastic lenses. Unsuitable
washer fluid concentrate could damage the
plastic lenses of the headlamps.
! Do not add distilled or de-ionized water to
the washer fluid container. Otherwise, the
level sensor may be damaged.
i
Add windshield washer concentrate, e.g.
MB SummerFit, to the washer fluid all year
round.
Example: washer fluid reservoir
X
Mix the windshield washer fluid in a
container beforehand.
X
At temperatures above freezing: fill the
washer fluid reservoir with a mix of water
408
Engine compartment
Maintenance and care