coolant level MERCEDES-BENZ CL500 2007 C216 Owner's Manual

Contents
Operation......................................... 497
The first 1000 miles (1500 km) ......... 498
Driving instructions ............................ 499
Drive sensibly – save fuel ............. 499
Drinking and driving ..................... 499
Pedals .......................................... 499
Power assistance ......................... 499
Brakes .......................................... 500
Driving off..................................... 501
Parking ......................................... 502
Tires ............................................. 502
Hydroplaning ................................ 503
Tire traction .................................. 503
Tire speed rating .......................... 504
Winter driving instructions ........... 504
Standing water ............................. 505
Passenger compartment .............. 506
Driving abroad .............................. 506
Control and operation
of radio transmitters .................... 506
Catalytic converter ....................... 507
Emission control........................... 507
Coolant temperature .................... 508At the gas station .............................. 509
Refueling ...................................... 509
Check regularly
and before a long trip ................... 511
Engine compartment ......................... 512
Hood ............................................ 512
Engine oil ..................................... 513
Transmission fluid level ................ 517
Active Body Control
(ABC) fluid level ............................ 517
Coolant level ................................ 518
Windshield washer system and
headlamp cleaning system ........... 519
Tires and wheels ................................ 520
Important guidelines .................... 520
Tire care and maintenance ........... 521
Direction of rotation ..................... 523
Loading the vehicle ...................... 523
Recommended
tire inflation pressure ................... 528
Checking tire inflation pressure ... 530
Tire labeling.................................. 536
Load identification ....................... 540
DOT,
Tire Identification Number (TIN) ... 540
Maximum tire load ....................... 541Maximum tire inflation pressure .. 542
Uniform Tire Quality
Grading Standards (U.S. vehicles) 542
Tire ply material ........................... 544
Tire and loading terminology ........ 544
Rotating tires ............................... 548
Winter driving .................................... 549
Winter tires .................................. 549
Snow chains................................. 550
Maintenance...................................... 551
Maintenance
service indicator message ........... 551
Calling up the maintenance
service indicator display .............. 553
Resetting the maintenance
service indicator .......................... 553
Vehicle care....................................... 554
Cleaning and care of vehicle ........ 554

383 Controls in detail
Driving and parking
Problems while driving
The engine runs erratically and misfires

An ignition cable may be damaged.

The engine electronics may not be op-
erating properly.

Unburned gasoline may have entered
the catalytic converter and damaged it.
Give very little gas.
Have the problem repaired by an au-
thorized Mercedes-Benz 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 518).In case of accident
If the vehicle is leaking gasoline:
Do not start the engine under any cir-
cumstances.
Move away from vehicle.
Notify local fire and/or police authori-
ties.
If the extent of the damage cannot be de-
termined:
Contact an authorized Mercedes-Benz
Center or call Roadside Assistance.
If no damage can be determined on the

major assemblies

fuel system

engine mount:
Start the engine in the usual manner.
iTo signal minor directional changes such as
changing lanes, press combination switch only
to point of resistance and release. The corre-
sponding turn signals will flash three times.
iExcessive coolant temperatures trigger a
warning message in the multifunction display
(
page 580).

511 Operation
At the gas station
Check regularly and before a long trip
Example illustration from CL 550
1Coolant level
2Brake fluid
3Windshield washer and headlamp
cleaning systemWindshield washer system and head-
lamp cleaning system
For more information on refilling the wash-
er reservoir, see “Windshield washer sys-
tem and headlamp cleaning system”
(
page 519).
Coolant
For more information on coolant, see
“Coolant level” (
page 518) and see “Fu-
els, coolants, lubricants, etc.”
(
page 684).
Brake fluid
For information on brake fluid, see “Brake
fluid” (
page 687)Engine oil level
For more information on engine oil, see
“Engine oil” (
page 513).
Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (
page 641).
For more information, see “Lighting”
(
page 363).
Tire inflation pressure
For information on tire inflation pressure,
see “Checking tire inflation pressure”
(
page 530).
iOpening the hood (page 512).
!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 Center immediately.
Do not add brake fluid as this will not solve the
problem. For more information, see “Practical
hints” (
page 569) and (page 596).

518 Operation
Engine compartment
Coolant level
The engine coolant is a mixture of water
and anticorrosion/antifreeze.
When checking the coolant level,

the vehicle must be parked on level
ground

the coolant temperature must be
below 158°F (70°C)
The coolant expansion tank is located on
the passenger side of the engine compart-
ment.
Example illustration from CL 550
1Cap
2Coolant expansion tank
Using a rag, turn cap1 slowly approx-
imately one half turn counterclockwise
to release any excess pressure.
Continue turning the cap counterclock-
wise and remove it.
The coolant level is correct if the level

for cold coolant: reaches the white
marking (plastic bridge) inside the cool-
ant expansion tank

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 the
“Technical data” section (
page 689).
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.

609 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Coolant,
please refill
See Oper. ManualThe coolant level is too low.Add coolant (page 518).
If you have to add coolant frequently, have
the cooling system checked by an authorized
Mercedes-Benz 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.
!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 Lim-
ited Warranty.
Do not drive without a sufficient amount of cool-
ant in the cooling system. The engine will over-
heat, causing major engine damage.

610 Practical hints
What to do if …?
During severe operating conditions,
e.g. stop-and-go traffic, the coolant tem-
perature may rise close to 248°F (120°C).
Display Possible cause/consequencePossible solution
Coolant level
Stop vehicle!
Switch engine offThe coolant is too hot. Stop the vehicle in a safe location or as soon
as it is safe to do so and immediately turn off
the engine.
Only start the engine again after the message
disappears. You could otherwise damage the
engine.
Observe the coolant temperature gauge in
the instrument cluster (
page 30).
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 engine 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.!The engine should not be operated with the
coolant temperature above 248°F (120°C). Do-
ing so may cause serious engine damage which
is not covered by the Mercedes-Benz Limited
Warranty.

611 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Coolant level
Stop vehicle!
Switch engine offThe poly-V-belt could be broken.Stop the vehicle in a safe location or as soon
as it is safe to do so and immediately turn off
the engine.
Check the poly-V-belt.
If it is broken:
Do not continue to drive. Otherwise the en-
gine will overheat due to an inoperative water
pump which may result in damage to the en-
gine.
Notify an authorized Mercedes-Benz 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 Limited Warranty.
Observe the coolant temperature gauge in
the instrument cluster (
page 30).
(Continued on next page)

612 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Coolant level
Stop vehicle!
Switch engine offRestart the engine.
If this message disappears from the multi-
function display:
Drive immediately to the nearest autho-
rized Mercedes-Benz Center.
If this message does not disappear from the
multifunction display:
Call Roadside Assistance.
The cooling fan for the coolant is malfunc-
tioning.Observe the coolant temperature gauge in
the instrument cluster (
page 30).
Have the fan replaced as soon as possible.
You are driving with one or both doors
open.
The display symbol shows you which doors
are open.Close the doors.

689 Technical data
Fuels, coolants, lubricants, etc.
Coolants
The engine coolant is a mixture of water
and anticorrosion/antifreeze, which pro-
vides:

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
-35°F (-37°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 re-
placement 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 are used to
renew the coolant concentration or bring it
back up to the proper level.
For information on other Mercedes-Benz
approved products of equal specification,
refer to the Factory Approved Service
Products pamphlet (USA only) or contact
an authorized Mercedes-Benz Center.To provide important corrosion protection,
the solution must be at least 50% anticor-
rosion/antifreeze (equivalent to freeze
protection to approximately -35°F
[-37°C]). If you use a solution that is more
than 55% anticorrosion/antifreeze (freeze
protection to approximately -49°F
[-45°C]), the engine temperature will in-
crease due to the lower heat transfer capa-
bility 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).
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 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 Lim-
ited Warranty.

696 Index
Children in the vehicle 57
Air bags 57
Blocking of
rear side window operation 62
Indicator lamp, front passenger
front air bag off 50, 578
Infant and child restraint systems 57
LATCH-type child seat anchors 61
Tether attachment points 60
Cigarette lighter 477
Cockpit 28
COMAND
Adjusting volume 91
Components 81
Controller 84
Display 82
Display illumination 83
Function buttons 82
Main menus 91
Menu overview 86
Navigation system 149
Operating 86
Operating safety 80
Operating seats 250
Phone book* 137
Radio, FM/AM 95Selecting sound settings 92
SMS messages 145
Surround sound 93
Switching off/on
the audio source 94
Switching on or off 81
Swiveling display 83
System settings 227
Telephone keypad* 84
Telephone* menu 120
Vehicle menu 235
Voice Control settings 229
Combination switch 367
Corner-illuminating lamps 368
High beam flasher 367
Turn signals 382
Windshield wipers 372
Command list (Voice Control) 305
Address book commands 310
Audio commands 312
General commands 305
Navigation commands 308
Telephone* commands 306Control system instrument cluster 256
Multifunction display 256
Multifunction steering wheel 257
Control system instrument cluster menus
Assistance* 268
Audio 263
Navi 261
Service 269
Settings 271
Telephone* 265
Trip 260
Vehicle status message memory 270
Coolant 518
Adding 518
Anticorrosion/antifreeze
mixing ratio and quantity 689
Checking level 518
Messages in display 609
Temperature 508
Temperature gauge 31, 403
Coolant level
Checking 518
Corner-illuminating lamps 368
Courtesy lighting 371