Mercedes Benz 2008 c300 Manuale Utente

Pagina di 509
481
Technical data
Fuels, coolants, lubricants, etc.
Premium unleaded gasoline
Gasoline additives
A major concern among engine manufac-
turers is carbon build-up caused by gaso-
line. Mercedes-Benz recommends only the 
use of quality gasoline containing additives 
that prevent the build-up of carbon 
deposits.
After an extended period of using fuels 
without such additives, carbon deposits 
can build up especially on the intake valves 
and in the combustion area, leading to 
engine performance problems such as:
Warm-up hesitation
Unstable idle
Knocking/pinging
Misfire
Power loss
Warning!
G
Gasoline is highly flammable and poisonous. 
It burns violently and can cause serious 
personal injury. 
Never allow sparks, flame or smoking mate-
rials near gasoline!
Turn off the engine before refueling.
Whenever you are around gasoline, avoid in-
haling fumes and skin or clothing contact, 
extinguish all smoking materials. 
Direct skin contact with fuels and the inha-
lation of fuel vapors can damage your 
health.
!
To maintain the engine’s durability and per-
formance, premium unleaded gasoline must be 
used. If premium unleaded gasoline is not avail-
able and low octane fuel is used, follow these 
precautions:
Have the fuel tank only partially filled with 
unleaded regular gasoline and fill up with 
premium unleaded gasoline as soon as 
possible.
Avoid full throttle driving and abrupt 
acceleration.
Do not exceed an engine speed of 3000 rpm 
if the vehicle is loaded with a light load such 
as two persons and no luggage.
Do not exceed 
2
/
3
 of maximum accelerator 
pedal position if the vehicle is fully loaded or 
operating in mountainous terrain.