coolant level MERCEDES-BENZ ML320CDI 2007 W163 Comand Manual

Contents
Oxidation catalyst
(diesel engine).............................. 349
Emission control .......................... 350
Coolant temperature .................... 350
At the gas station .............................. 352
Refueling ...................................... 352
Check regularly and
before a long trip.......................... 354
Engine compartment ......................... 356
Hood ............................................ 356
Engine oil ..................................... 358
Transmission fluid level ................ 362
Coolant level ................................ 362
Windshield/rear window
washer system and
headlamp cleaning system* ........ 363
Tires and wheels ................................ 365
Important guidelines .................... 365
Tire care and maintenance........... 366
Direction of rotation ..................... 368
Loading the vehicle ...................... 368
Recommended tire
inflation pressure ......................... 374
Checking tire inflation pressure ... 375
Tire labeling.................................. 385
Load identification ....................... 389DOT, Tire Identification Number
(TIN) .............................................. 389
Maximum tire load ........................ 391
Maximum tire inflation pressure ... 391
Uniform Tire Quality Grading
Standards (U.S. vehicles) .............. 392
Tire ply material ............................ 394
Tire and loading terminology......... 394
Rotating tires ................................ 397
Winter driving ..................................... 399
Winter tires ................................... 399
Block heater (Canada only) ........... 400
Snow chains.................................. 400
Maintenance....................................... 401
Maintenance service indicator
message ....................................... 401
Calling up the maintenance
service indicator display ............... 403
Resetting the maintenance
service indicator ........................... 403
Vehicle care........................................ 404
Cleaning and care of the vehicle ... 404
Practical hints.................................. 413
What to do if … ................................... 414
Lamps in instrument cluster ......... 414
Lamp in center console ................ 426
Vehicle status messages in the
multifunction display .................... 428
Where will I find ...? ............................ 469
First aid kit.................................... 469
Vehicle tool kit.............................. 469
Minispare wheel
(except ML 63 AMG) ..................... 473
Collapsible tire
(ML 63 AMG only) ......................... 474
Unlocking/locking in an emergency .. 475
Unlocking the vehicle ................... 475
Locking the vehicle ....................... 476
Unlocking and opening
the tailgate ................................... 476
Fuel filler flap ................................ 477
Opening/closing in an emergency ..... 478
Power tilt/sliding sunroof* ........... 478
Resetting activated head restraints.... 479
Replacing SmartKey batteries ............ 480

63 Getting started
Driving
Deactivating intermittent wipe
Turn rear window wiper switch1 to
position4 (
page 62).
Indicator6 for 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
switch1 in position2 or5
(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 363).
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 en-
gine. Allow engine and coolant to cool
off.

Check the coolant level and add cool-
ant if necessary (
page 362).

151 Controls in detail
Control system
Menus, submenus and functions
Menu1
Menu2
Menu3
Menu4
Menu5
Menu6
Standard display
AMG
1
1AMG vehicles only.
Off-road mode
1
Audio
Navi*
Airmatic*/Compass
(page 154)
(page 156)
(page 159)
(page 159)
(page 161)
(page 162)
Commands/submenusTrip- and main odometer
Engine oil temper-
ature
Off-road driving
program on/off
Selecting radio
station
Route guidance in-
structions, current
direction traveled
Compass
Checking tire inflation
pressure
Vehicle supply
voltage
Selecting satellite
radio station*
(USA only)
Vehicle level*
Checking coolant tem-
perature
RACETIMER
Operating CD
player
Calling up digital speed-
ometer or outside tem-
perature
Overall analysis
Calling up maintenance
service indicator
Lap analysis
Checking engine oil level
i
The headings used in the menus table are
designed to facilitate navigation within thesystem and are not necessarily identical to those
shown in the control system displays. The firstfunction displayed in each menu will show you
which part of the system you are in.

154 Controls in detailControl systemStandard display menu
In the standard display, the main odometer
and the trip odometer appear in the multi-
function display.
1Trip odometer
2Main odometer
If you see another display, press
buttonè orÿ repeatedly until
the standard display appears.

Press buttonk orj to select
the functions in the standard display
menu.The following functions are available:Checking coolant temperature
Function
Page
Checking tire inflation pressure
375
Checking coolant temperature
154
Calling up digital speedometer
or outside temperature
155
Calling up maintenance service
indicator
403
Checking engine oil level
(ML 500)
358
Warning!
G


Driving when your engine is overheated
can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously
burned.


Steam from an overheated engine can
cause serious burns which can occur
just by opening the hood. Stay away
from the engine if you see or hear steam
coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of
the vehicle and do not stand near the vehicle
until the engine has cooled down.

354 OperationAt the gas stationLow outside temperatures
(diesel engine)
To prevent malfunctions, diesel fuel with
improved cold flow characteristics is of-
fered in the winter months. Check with
your fuel retailer.
Check regularly and before a long trip
Open the hood (
page 356).
Example ML 5001Brake fluid
2Coolant level
3Windshield washer system and
headlamp cleaning system*
Engine oil level
For more information on engine oil, see
“Engine oil” (
page 358).Brake fluid
Coolant
For normal replenishing, use water (pota-
ble water quality).
For more information, see “Coolant level”
(
page 362) and see “Fuels, coolants, lu-
bricants” (
page 543).
!
Do not fill the tank with gasoline. Do not
blend diesel fuel with gasoline or kerosine. The
fuel system and engine will otherwise be dam-
aged, which is not covered by the
Mercedes-Benz Limited Warranty.
!
If you find that the brake fluid in the brake
fluid reservoir has fallen to the minimum mark or
below, have the brake system checked for brake
pad thickness and leaks immediately. Notify an
authorized Mercedes-Benz Light Truck Center
immediately. Do not add brake fluid as this will
not solve the problem. For more information, see
“Brake fluid” (
page 546).

362 OperationEngine compartmentTransmission fluid level
The transmission fluid level does not need
to be checked. If you notice transmission
fluid loss or gear shifting malfunctions,
have an authorized Mercedes-Benz Light
Truck Center check the automatic trans-
mission.Coolant level
The engine coolant is a mixture of water
and anticorrosion/antifreeze. To check
the coolant level, the vehicle must be
parked on level ground.
The coolant expansion tank is located on
the driver’s side of the engine compart-
ment.1Cap
2Coolant expansion tank
3Indicator wall
4Coolant level

Using a rag, turn cap1 slowly approx-
imately one half turn counterclockwise
to release any excess pressure.
Warning!
G
In order to avoid potentially serious burns:

Use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system,
or if the coolant temperature gauge indi-
cates that the coolant is overheated.


Do not remove pressure cap on coolant
reservoir if coolant temperature is
above 158°F (70°C). Allow engine to
cool down before removing cap. The
coolant reservoir contains hot fluid and
is under pressure.


Using a rag, slowly open the cap approx-
imately
1/2 turn to relieve excess pres-
sure. If opened immediately, scalding
hot fluid and steam will be blown out un-
der pressure.


Do not spill antifreeze on hot engine
parts. Antifreeze contains ethylene gly-
col which may burn if it comes into con-
tact with hot engine parts.

363 Operation
Engine compartment

Continue turning cap1 counterclock-
wise and remove it.
Coolant level4 is correct if the level:

for cold coolant: reaches the top of
indicator wall3 visible through the
filling opening


for warm coolant: is approximately
0.6 in (1.5 cm) higher

Add coolant as required.

Replace and tighten cap1.
For more information on coolant, see
“Coolants” (
page 549).Windshield/rear window washer
system and headlamp cleaning
system*
The windshield washer reservoir is located
in the engine compartment.
1Cap for windshield washer fluid
reservoir
Fluid for the windshield washer system and
the headlamp cleaning system* is supplied
from the windshield washer reservoir. It
has a capacity of 8.1 US qt (7.7 l).During all seasons, add MB Windshield
Washer Concentrate “MB SummerFit” to
water. Premix the windshield washer fluid
in a suitable container.

Use the tab to pull cap1 upwards.Warning!
G
Washer solvent/antifreeze is highly flamma-
ble. Do not spill washer solvent/antifreeze
on hot engine parts, because it may ignite
and burn. You could be seriously burned.


450 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
Ï
Coolant level
Stop car, switch engine off
The coolant is too hot.
Among other possible causes
(the cooling fan could be
malfunctioning), the poly-V-belt
could be broken.

Stop the vehicle in safe location or as
soon as it safe to do so.

Apply the parking brake (
page 65).

Turn off the engine.

Check the poly-V-belt.
If it is broken:

Do not continue to drive. Otherwise, the
engine will overheat due to an inoperative
water pump which may result in damage
to the engine. Contact an authorized
Mercedes-Benz Light Truck Center.
If it is intact:

Do not continue to drive the vehicle with
this message displayed. Doing so could
result in serious engine damage that is
not covered by the Mercedes-Benz Limit-
ed Warranty.
(Continued on next page)

452 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
B
Top up Coolant
See Oper. Manual
The coolant level is too low.

Add coolant (
page 362).

If you have to add coolant frequently,
have the cooling system checked by an
authorized Mercedes-Benz Light Truck
Center.
Warning!
G
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. You could be seriously burned.Warning!
G
In order to avoid potentially serious burns:

Use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system,
or if the coolant temperature gauge indi-
cates that the coolant is overheated.


Do not remove pressure cap on coolant
reservoir if coolant temperature is
above 158°F (70°C). Allow engine to
cool down before removing cap. The
coolant reservoir contains hot fluid and
is under pressure.


Using a rag, slowly open the cap approx-
imately
1/2 turn to relieve excess pres-
sure. If opened immediately, scalding
hot fluid and steam will be blown out un-
der pressure.


Do not spill antifreeze on hot engine
parts. Antifreeze contains ethylene gly-
col which may burn if it comes into con-
tact with hot engine parts.
!
Do not ignore the low engine coolant level
warning. Extended driving with the message and
symbol displayed may cause serious engine
damage not covered by the Mercedes-Benz
Limited Warranty.
Do not drive without sufficient amount of coolant
in the cooling system. The engine will overheat
causing major engine damage.

549 Technical data
Fuels, coolants, lubricants
Coolants
The engine coolant is a mixture of water
and anticorrosion/antifreeze, which
provides:

Corrosion protection


Freeze protection


Boiling protection (by increasing the
boiling point)
The cooling system was filled at the factory
with a coolant providing freeze protection
to approximately -35°F (-37°C) and corro-
sion protection.If the antifreeze mixture is effective to
-22°F (-30°C), the boiling point of the cool-
ant in the pressurized cooling system is
reached at approximately 266°F (130°C).
The coolant solution must be used year
round to provide the necessary corrosion
protection and increase boil-over protec-
tion. Refer to Maintenance Booklet for
replacement interval.
Coolant system design and coolant used
determine the replacement interval. The
replacement interval published in the
Maintenance booklet is only applicable if
MB 325.0 anticorrosion/antifreeze solu-
tion or other Mercedes-Benz approved
products of equal specification (see
Factory Approved Service Products
pamphlet) are used to renew the coolant
concentration or bring it back up to the
proper level.To provide important corrosion protection,
the solution must be at least 45% anticor-
rosion/antifreeze (equivalent to freeze
protection to approx. - 22°F [-30°C]). If
you use a solution that is more than 55%
anticorrosion/antifreeze (freeze protec-
tion to approx. - 49°F [-45°C]), the engine
temperature will increase due to the lower
heat transfer capability of the solution.
Therefore, do not use more than this
amount of anticorrosion/antifreeze.
If the coolant level is low, water and
MB 325.0 anticorrosion/antifreeze should
be used to bring it up to the proper level
(have cooling system checked for signs of
leakage). Please make sure the mixture is
in accordance with label instructions.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water. If you
are not sure about the water quality, con-
sult an authorized Mercedes-Benz Light
Truck Center.
!
Add premixed coolant solution only. Adding
water and MB 325.0 Anticorrosion/Antifreeze
separately from each other, could cause engine
damage not covered by the
Mercedes-Benz Limited Warranty.