Mercedes Benz 2004 ml 500 Manuale Utente

Pagina di 344
212
Operation
Driving instructions
Telephones and two-way radios
Radio transmitters, such as a portable tele-
phone or a citizens band unit should only 
be used inside the vehicle if they are con-
nected to an antenna that is installed on 
the outside of the vehicle.
Refer to the radio transmitter operation in-
structions regarding use of an external an-
tenna.
Catalytic converter
Your Mercedes-Benz is equipped with 
monolithic-type catalytic converters, an 
important element in conjunction with the 
oxygen sensors to achieve substantial con-
trol of the pollutants in the exhaust emis-
sions. Keep your vehicle in proper 
operating condition by following our rec-
ommended maintenance instructions as 
outlined in your Service Booklet.
Emission control
Certain engine systems serve to keep the 
toxic components of the exhaust gases 
within permissible legal limits.
These systems, of course, will function 
properly only when maintained strictly ac-
cording to factory specifications. Any ad-
justments on the engine should, therefore, 
be carried out only by qualified 
Mercedes-Benz Light Truck Center autho-
rized technicians. Engine adjustments 
should not be altered in any way. More-
over, the specified service jobs must be 
Warning!
G
Never operate radio transmitters equipped 
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna) 
from inside the vehicle while the engine is 
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or 
personal injury.
!
To prevent damage to the catalytic con-
verters, use only premium unleaded 
gasoline in this vehicle.
Any noticeable irregularities in engine 
operation should be repaired promptly. 
Otherwise, excessive unburned fuel 
may reach the catalytic converter, 
causing it to overheat and start a fire.
Warning!
G
As with any vehicle, do not idle, park or op-
erate this vehicle in areas where combusti-
ble materials such as grass, hay or leaves 
can come into contact with the hot exhaust 
system, as these materials could be ignited 
and cause a vehicle fire.