303 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
antenna.
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
recommended maintenance instructions
as outlined in your Maintenance Booklet.
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 serious
personal injury.
!To prevent damage to the catalytic
converters, only use 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 potentially
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.
475 Index
Low beam headlamps
Messages in display 383
Replacing bulbs (Bi-Xenon*) 404
Replacing bulbs (Halogen) 404, 406
Lowering
Vehicle 418
Lubricants
Technical data 447M
Main dimensions 445
Maintenance 12, 344
Maintenance service 344
Basic service (Service A) 344
Calling up the
maintenance service indicator 345
Extended service (Service B) 344
Overdue 345
Types 344
When due 344
Maintenance service indicator 344
Calling up 345
Clearing 345
Resetting 346
Maintenance service system 344
Maintenance system 457
Malfunction
Vehicle status message memory 362
Manual headlamp mode 125Manual operations
Fuel filler flap 399
Interior lighting control 133
Locking the vehicle 398
Power tilt/sliding sunroof* 401
Unlocking gear selector lever 400
Unlocking the driver’s door 397
Manual shift program 175
MAXCOOL maximum cooling 200
Maximum inflation pressure 339
Maximum load rating 339
Maximum loaded vehicle weight 339
Mechanical key 397
Memory function 121, 457
Recalling
positions from memory 122
Storing exterior rear view
mirror parking positions 123
Storing key-dependent settings 122
