Mercedes-Benz E-Class Cabriolet 2018, Owner'S Manual

Page: 367 / 553

Checking the coolant level
& WARNING Risk of burns from hot com‐
ponent parts in the engine compartment
Certain components in the engine compart‐
ment can be very hot, e.g. the engine, the
radiator and parts of the exhaust system.
#
Allow the engine to cool down and only
touch component parts described in the
following.
&
WARNING Risk of scalding from hot
coolant
The engine cooling system is pressurised,
particularly when the engine is warm. If you
open the cap, you could be scalded by hot
coolant spraying out.
#
Let the engine cool down before open‐
ing the cap.
#
When opening the cap, wear protective
gloves and safety glasses.
#
Open the cap slowly to release pres‐
sure.
#
Park the vehicle on a level surface.
#
Check the coolant temperature display in the
instrument cluster.
The coolant temperature must be below
70 °C.
#
Slowly turn cap 1 anti-clockwise to relieve
overpressure.
#
Continue turning cap 1 anti-clockwise and
remove it.
The coolant level is correct:
R
if the engine is cold, up to marker bar 2 .
R
if the engine is warm, up to 1.5 cm over
marker bar 2 .
#
If necessary, top up with coolant that has
been approved by Mercedes-Benz.
R
Further information on coolant:
(
→
page 433)
Topping up the windscreen washer system
& WARNING Danger of burns from hot
component parts in the engine compart‐
ment
Certain component parts in the engine com‐
partment may be very hot, e.g. the engine,
the radiator and parts of the exhaust system.
364 Maintenance and care