Mercedes-Benz E-Class Coupe Operator's Manual page 299

using a rag, slowly turn the cap
R
1
approximately /
2
pressure. If opened immediately, scalding
hot fluid and steam will be blown out under
pressure.
do not spill antifreeze on hot engine parts.
R
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts.
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
Y
ignition lock ( page 151).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
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 151) 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 filler
turn to relieve excess
Y page 151).
Engine compartment
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 366).
Adding washer fluid to the windshield
washer system/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.
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.
Further information on windshield washer
fluid/antifreeze ( Y page 367).
297
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