2007 MERCEDES-BENZ R350 catalytic converter

Contents
Power tilt/sliding sunroof* ................ 258
Opening and closing ..................... 258
Synchronizing ............................... 260
Panorama roof with power
tilt/sliding panel* .............................. 261
Roller sunblinds for the
panorama roof with power
tilt/sliding panel........................... 261
Opening and closing the
panorama roof with power
tilt/sliding panel........................... 262
Synchronizing the panorama
roof with power tilt/sliding
panel ............................................ 264
Driving systems ................................. 266
Cruise control............................... 266
Distronic*..................................... 271
Distance warning function*.......... 284
AIRMATIC* ................................... 285
Parktronic* (Parking assist) ......... 291
Rear view camera* ....................... 295Loading .............................................. 297
Roof rack*.................................... 297
Loading instructions..................... 298
Cargo tie-down rings .................... 299
Hooks........................................... 300
Expanding cargo compartment .... 301
Cargo compartment cover blind* . 306
Partition net* ............................... 308
Useful features .................................. 311
Storage compartments ................ 311
Parcel nets ................................... 315
Cup holders.................................. 316
Ashtrays* ..................................... 319
Cigarette lighter* ......................... 321
Power outlets ............................... 322
Rear center console* ................... 323
Heated steering wheel* ............... 326
Telephone* .................................. 327
Tele Aid* ...................................... 330
Garage door opener* ................... 337
Compass ...................................... 342
Floormats ..................................... 343
Infrared reflecting windshield* ..... 344
Operation......................................... 345
The first 1 000 miles (1 500 km) ........ 346
Driving instructions ........................... 347
Drive sensibly – save fuel............. 347
Drinking and driving ..................... 347
Pedals .......................................... 347
Power assistance ......................... 348
Brakes.......................................... 348
Driving off .................................... 351
Parking......................................... 351
Tires ............................................. 352
Hydroplaning................................ 352
Tire traction ................................. 353
Tire speed rating .......................... 353
Winter driving instructions ........... 354
Standing water............................. 355
Passenger compartment .............. 356
Driving abroad ............................. 356
Control and operation of radio
transmitters ................................. 357
Catalytic converter
(gasoline engine) .......................... 357

58 Getting started
Driving
Driving off
Depress the brake pedal.
The gear selector lever can now be
used.
Shift automatic transmission toD orR
(
page 199).
Release the brake pedal.
Carefully depress the accelerator
pedal.After a cold start, the automatic transmis-
sion shifts at a higher engine revolution.
This allows the catalytic converter
(gasoline engine) or the oxidation catalyst
(diesel engine) to reach its operating tem-
perature earlier.
iWait for the gear selection process to
complete before setting the vehicle in motion.
iShifting from gear positionP to position R,
N, orD is only possible with the brake pedal
depressed. Without the brake pedal depressed,
the gear selector lever can be moved, but the
parking pawl remains engaged, not allowing
shifting to occur.
!If you hear a warning signal and the
message
Release parking brake appears in
the multifunction display when driving off, you
have forgotten to release the parking brake.
Release the parking brake (
page 57).
iOnce the vehicle is in motion, the automatic
central locking system engages and the locking
knobs drop down.
The automatic door lock feature can be
deactivated (
page 189).
You can open a locked door from the inside.
Open door only when conditions are safe to
do so.
Warning!G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehi-
cle control. Your vehicle’s ABS will not pre-
vent this type of loss of control.
Warning!G
It is dangerous to shift the gear selector
lever out ofP orN if the engine speed is
higher than idle speed. If your foot is not
firmly on the brake pedal, the vehicle could
accelerate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and when
your right foot is firmly on the brake pedal.

63 Getting started
Driving
Deactivating intermittent wipe
Turn rear window wiper switch 1 to
position4 (
page 62).
Indicator6for the rear window wiper
is cleared from the lower multifunction
display, indicating that the rear window
wiper is deactivated.
Wiping with windshield washer fluid
Turn and hold rear window wiper
switch 1 in position 2 or 5
(
page 62) until the rear window is
clean.
The rear window wiper operates with
washer fluid.
For information on filling up the washer
reservoir, see “Windshield/rear window
washer system and headlamp cleaning*
system” (
page 372).
Problems while driving
The engine runs erratically and misfires

An ignition cable may be damaged
(gasoline engine only).

The engine electronics may not be
operating properly.

Unburned gasoline may have entered
the catalytic converter and damaged it
(gasoline engine only).
Give very little gas.
Have the problem repaired by an
authorized Mercedes-Benz Light Truck
Center as soon as possible.The coolant temperature is above
248°F (120°C)
The coolant is too hot and is no longer
cooling the engine.
Stop the vehicle in a safe location as
soon as possible and turn off the
engine. Allow engine and coolant to
cool.
Check the coolant level and add
coolant if necessary (
page 370).

197 Controls in detail
Automatic transmission
Automatic transmission
For information on driving with an
automatic transmission see “Automatic
transmission” (
page 54).
Your vehicle’s transmission adapts its gear
shifting process to your individual driving
style by continually adjusting the shift
points up or down. These shift point adjust-
ments are performed based on current
operating and driving conditions.
If the operating conditions change, the
automatic transmission reacts by
adjusting its shift program.
Gear selector lever
The gear selector lever is located on the
right of the steering column.
Gearshift pattern for automatic
transmission
PPark position
RReverse gear
NNeutral
DDrive position
iDuring the brief warm-up, transmission
upshifting is delayed. This allows the catalytic
converter (gasoline engine) or the oxidation
catalyst (diesel engine) to heat up more quickly
to operating temperature.
Warning!G
Make sure that absolutely no objects are
obstructing the pedals’ range of movement.
Keep the driver’s footwell clear of all obsta-
cles. If there are any floormats or carpets in
the footwell, make sure that the pedals still
have sufficient clearance.
During sudden driving or braking maneuvers
the objects could get caught between the
pedals. You could then no longer brake or
accelerate. This could lead to accidents and
injury.

357 Operation
Driving instructions
Control and operation of radio
transmitters
COMAND system, radio and telephone*Telephones and two-way radios
Radio transmitters, such as a portable
telephone or a citizens band unit should
only be used inside the vehicle if they are
connected to an antenna that is installed
on the outside of the vehicle.
Refer to the radio transmitter operation
instructions regarding use of an external
antenna.
Catalytic converter (gasoline engine)
Your vehicle is equipped with monolith-
ic-type catalytic converters, an important
element in conjunction with the oxygen
sensors to achieve substantial control of
the pollutants in the exhaust emissions.
Keep your vehicle in proper operating con-
dition by following our recommended
maintenance instructions as outlined in
your Maintenance Booklet.
Warning!G
Do not forget that your primary respon-
sibility is to drive the vehicle. Only operate
the COMAND system, radio or telephone
1 if
road, weather and traffic conditions permit.
Bear in mind that at a speed of just
30 mph (approximately 50 km/h), your
vehicle is covering a distance of
44 feet (approximately 14 m) every second.
1Observe all legal requirements.
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,
possibly resulting in an accident and/or
personal injury.
!To prevent damage to the catalytic convert-
ers, use only premium unleaded gasoline in this
vehicle.
Any noticeable irregularities in engine operation
should be repaired promptly. Otherwise, exces-
sive unburned fuel may reach the catalytic con-
verter, causing it to overheat and potentially
start a fire.

368 Operation
Engine compartment
If there is excess engine oil with the engine
at operating temperature, the following
message will appear:
Engine oil level
Reduce oil level
Have excess oil siphoned or drained
off. Contact an authorized
Mercedes-Benz Light Truck Center.
For more information on messages in the
multifunction display concerning engine
oil, see the “Practical hints” section
(
page 459).Checking engine oil level with the oil
dipstick (except R 500)
When checking the oil level

the vehicle must be parked on level
ground

with the engine at operating tempera-
ture, the vehicle must have been
stationary for at least 5 minutes with
the engine turned off

with the engine not at operating tem-
perature yet, the vehicle also must
have been stationary for at least
5 minutes with the engine turned off1Oil dipstick
2Upper mark
3Lower mark
Open the hood (page 364).
Pull out oil dipstick1.
Wipe oil dipstick 1 clean.
Fully insert oil dipstick1 into the
dipstick guide tube.
Pull out oil dipstick1 again after
approximately 3 seconds to obtain
accurate reading.
The oil level is correct when it is between
lower mark 3 (min.) and upper mark 2
(max.) of the oil dipstick.
!Excess oil must be siphoned or drained off.
It could cause damage to the engine and/or
catalytic converter (gasoline engine) or the
oxidation catalyst (diesel engine) not covered by
the Mercedes-Benz Limited Warranty.

459 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
NEngine oil level
Stop car, turn engine offThere is no oil in the engine.
There is a danger of engine
damage.Carefully bring the vehicle to a halt as
soon as it is safe to do so in a safe
location.
Turn off the engine.
Add engine oil (page 369) and check
the engine oil level (
page 366).
Engine oil level
Reduce oil levelYou have added too much
engine oil. There is a risk of
damaging the engine and/or the
catalytic converter (gasoline en-
gine) or the oxidation catalyst
(diesel engine).Have oil siphoned or drained off.
Observe all legal requirements with
respect to its disposal.
Engine oil level
Visit workshopThe engine oil has dropped to a
critical level.Check the engine oil level (page 366)
and add oil as required (
page 369).
If you must add engine oil frequently, have
the engine checked for possible leaks.
!The engine oil level warnings should not be
ignored. Extended driving with the symbol dis-
played could result inserious engine damage that is not covered by the
Mercedes-Benz Limited Warranty.

514 Practical hints
Jump starting
If the battery is discharged, the engine can
be started with jumper cables and the bat-
tery of another vehicle. Observe the follow-
ing:

Jump starting should only be performed
using the jump-start contacts in the en-
gine compartment (
page 515).

Jump starting should only be performed
when the engine and catalytic
converter
1 are cold.

Do not start the engine if the battery is
frozen. Let the battery thaw out first.

Only jump start from batteries with the
same voltage rating (12 V). Jump start-
ing with a more powerful battery could
damage the vehicle’s electrical system,
which will not be covered by the
Mercedes-Benz Limited Warranty.

Use only jumper cables with sufficient
cross-section and insulated terminal
clamps.

Always make sure the jumper cables
are not on or near pulleys, fans or other
parts that move when the engine is
started or running.
Warning!G
Failure to follow these directions will cause
damage to the electronic components, and
can lead to a battery explosion and severe
injury or death.
Never lean over batteries while connecting
or jump starting, you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water, and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and very explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking, etc.
Attempting to jump start a frozen battery
can result in it exploding, causing personal
injury.
Read all instructions before proceeding.
1Vehicles with gasoline engine only.
!Do not tow-start the vehicle.
!Avoid repeated and lengthy starting
attempts.
Do not attempt to start the engine using a
battery quick charge unit.
If the engine does not run after several unsuc-
cessful starting attempts, have it checked at the
nearest authorized Mercedes-Benz Light Truck
Center.
Excessive unburned fuel generated by repeated
failed starting attempts may damage the cata-
lytic converter
1.
Make sure the jumper cables do not have loose
or missing insulation.
Make sure the cable clamps do not touch any
other metal part while the other end is still at-
tached to a battery.