Mercedes-Benz E-Class Operator's Manual page 341

engine or to the catalytic converter. Have
excess engine oil siphoned off.
Example: engine oil cap
Turn cap : counter-clockwise and remove
X
it.
Add engine oil.
X
If the oil level is at or below the MIN mark
on the oil dipstick, add 1.1 US qt (1.0 l) of
engine oil.
Replace cap : on the filler neck and turn
X
clockwise.
Ensure that the cap locks into place
securely.
Check the oil level again with the oil
X
dipstick ( page 338).
Y
Further information on engine oil
( page 422).
Y
Additional service products
Checking coolant level
G WARNING
Certain components in the engine
compartment, such as the engine, radiator
and parts of the exhaust system, can become
very hot. Working in the engine compartment
poses a risk of injury.
Where possible, let the engine cool down and
touch only the components described in the
following.
Engine compartment
G
WARNING
The engine cooling system is pressurized,
particularly when the engine is warm. When
opening the cap, you could be scalded by hot
coolant spraying out. There is a risk of injury.
Let the engine cool down before opening the
cap. Wear eye and hand protection when
opening the cap. Open the cap slowly half a
turn to allow pressure to escape.
Park the vehicle on a level surface.
X
Only check the coolant level when the
vehicle is on a level surface and the engine
has cooled down.
Turn the SmartKey to position 2 in the
X
ignition lock ( page 159).
Y
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Check the coolant temperature display in
X
the instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).
Turn the SmartKey to position
X
0 ( page 159) in the ignition lock.
Y
Slowly turn cap : half a turn counter-
X
clockwise to allow excess pressure to
escape.
Turn cap : further counter-clockwise and
X
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
339
page 159).
Y
Z