Mercedes-Benz A-Class Operator's Manual page 359

Checking coolant level
& WARNING Risk of burns from hot com‐
ponent parts in the engine compartment
Certain component parts in the engine com‐
partment can be very hot, e.g. the engine,
the cooler and parts of the exhaust system.
Let the engine cool down and only
#
touch the component parts described
as follows.
& WARNING Risk of scalding from hot
coolant
The engine cooling system is pressurized,
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
158 °F (70 °C).
Slowly turn cap 1 counter-clockwise to
#
release overpressure.
Maintenance and care 357
Continue turning cap 1 counter-clockwise
#
and remove it.
The coolant level is correct:
if the engine is cold, up to marker bar
R
if the engine is warm, up to 0.6 in (1.5 cm)
R
over marker bar 2
If necessary, add coolant that has been
#
approved for Mercedes-Benz.
Further information on coolant
R
( page 424).
→
Adding washer fluid to the windshield
washer system
& WARNING Risk of burns from hot com‐
ponent parts in the engine compartment
Certain component parts in the engine com‐
partment can be very hot, e.g. the engine,
the cooler and parts of the exhaust system.
Let the engine cool down and only
#
touch the component parts described
as follows.
2