Engine Compartment; Low Outside Temperatures; Winter Diesel - Mercedes-Benz C Class Owner's Manual

If you use bio-diesel/vegetable oil or mix diesel
with bio-diesel/vegetable oil, your warranty en-
titlement will be restricted. Bio-diesel is some-
times referred to as fatty acid methyl ester
(FAME).

Low outside temperatures

The flow properties of diesel may be insuf-
ficient at low ambient temperatures.
In order to prevent operating problems,
diesel with improved cold flow qualities is
available during the winter months. Your
vehicle must be refuelled with this winter
diesel at temperatures of -5 °C or below.
You can use this winter diesel at tempera-
tures down to about -20 °C without prob-
lems.
Mix a quantity of flow improver or kero-
sene with summer diesel fuel or less cold-
resistant winter diesel fuel according to
the outside temperature.
Mix the additive with the diesel in good
time, before the flow properties of the die-
sel become insufficient. Malfunctions can
only be rectified by heating the entire fuel
system, e.g. by parking the vehicle in a
heated garage.
G
Risk of fire
Do not use petrol to refuel vehicles with a
diesel engine. Never mix diesel with petrol.
This would damage the fuel system and en-
gine and could result in a vehicle fire.
Flow improver
The effectiveness of a flow improver is not
guaranteed with every fuel. Observe the in-
formation provided by the manufacturer
when using a flow improver. Only use flow
improvers that have been tested and ap-
proved by Mercedes-Benz. Information
about flow improvers that have been
tested and approved by Mercedes-Benz
can be obtained from any Mercedes-Benz
Service Centre.
E
Allow the engine to run for a while, so
that the additive can run through the
entire fuel system.
Nur fuer internen Gebrauch Nur fuer internen Gebrauch

Engine compartment

Engine compartment
Bonnet
G
Risk of accident
Do not pull the release lever while the ve-
hicle is in motion. The bonnet could other-
wise open.
Opening
G
Risk of injury
There is a risk of injury if the bonnet is open,
even if the engine is not running.
Parts of the engine can become very hot.
To avoid burning yourself, only touch those
components described in the Operating In-
structions and observe the relevant safety
notes.
G
Risk of injury
The radiator fan is located between the radi-
ator and the engine block. It may start turn-
ing automatically even if there is no key in
the ignition lock. Keep away from the area
of rotation of the fan blades. Otherwise, you
could be injured.
Operation
ee
195