Coolant Level; Transmission Fluid Level - Mercedes-Benz 2010 S-Class Operator's Manual

Engine compartment
408
Example illustration: S 63 AMG
X
Unscrew filler cap : from filler neck.
X
Add engine oil as required. Be careful not
to overfill with oil.
Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.
! Excess oil must be siphoned or drained
off. It could cause damage to the engine
and emission control system not covered
by the Mercedes-Benz Limited Warranty.
X
Screw filler cap : back on filler neck.
For more information on engine oil, see the
"Technical data" section (
( Y page 539).

Transmission fluid level

The transmission fluid level does not need to
be checked. If you notice transmission fluid
loss or gearshifting malfunctions, have an
authorized Mercedes-Benz Center check the
transmission.
Active Body Control (ABC) fluid level
Regular fluid level check is not required. If you
notice fluid leaks or malfunction messages in
the multifunction display, have an authorized
Mercedes-Benz Center check the ABC
system.
Y page 537) and

Coolant level

The engine coolant is a mixture of water and
anticorrosion/antifreeze.
When checking the coolant level, the vehicle
must be parked on level ground, and the
coolant temperature must be below 158‡
(70†).
G
Warning!
In order to avoid any potentially serious burns:
Use extreme caution when opening the
R
hood if there are any signs of steam or
coolant leaking from the cooling system, or
if the coolant temperature gauge indicates
that the coolant is overheated.
Do not remove the cap on the coolant
R
expansion tank if the coolant temperature
is above 158‡ (70†). Allow the engine to
cool down before removing the cap. The
coolant expansion tank contains hot fluid
and is under pressure.
Using a rag, slowly open the cap
R
1
approximately /
2
to relieve excess 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.
Example illustration: S 550
turn counterclockwise