Mercedes-Benz CLS-Class 2014 Owners Manual - Manual (Page 311)

X Park the vehicle on a level surface.
Only check the coolant level when the
vehicle is on a level surface and the engine
has cooled down.
X Turn the SmartKey to position 2 in the
ignition lock (
Y
page 147).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Y
page 147).
X Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).
X Turn the SmartKey to position
0 (
Y
page 147) in the ignition lock.
X Slowly turn cap : half a turn counter-
clockwise to 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 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 ;.
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 377).
Adding washer fluid to the windshield
washer system/headlamp cleaning
system
G WARNING
Windshield washer concentrate is highly
flammable. If it comes into contact with hot
engine components or the exhaust system it
could ignite. There is a risk of fire and injury.
Make sure that no windshield washer
concentrate is spilled next to the filler neck.
X To open: pull cap : upwards by the tab.
X Add the premixed washer fluid.
X To close: press cap : onto the filler neck
until it engages.
The washer fluid reservoir is used for both the
windshield washer system and the headlamp
cleaning system.
If the washer fluid level drops below the
recommended minimum of 1 liter, a message
appears in the multifunction display
prompting you to refill the washer fluid
(
Y
page 262).
Further information on windshield washer
fluid/antifreeze (
Y
page 378).
Maintenance
ASSYST PLUS
Service messages
The ASSYST PLUS service interval display
informs you of the next service due date.
Maintenance
309
Maint
enance
and
care
Z