2007 MERCEDES-BENZ CLK550 coolant warning light

Contents
Safety and Security........................... 63
Occupant safety................................... 64
Air bags .......................................... 65
Occupant Classification System ..... 71
Seat belts ....................................... 75
Active head restraints .................... 80
Roll bars ......................................... 81
Children in the vehicle .................... 82
Blocking of rear
side window operation ................... 86
Panic alarm .......................................... 87
Activating ....................................... 87
Deactivating ................................... 87
Driving safety systems ......................... 88
ABS ................................................ 88
BAS ................................................ 90
ESP
®............................................... 90
Anti-theft systems................................ 95
Immobilizer..................................... 95
Anti-theft alarm system .................. 95
Controls in detail............................... 97
Locking and unlocking ......................... 98
SmartKey ....................................... 98
SmartKey with KEYLESS-GO* ...... 101
Checking the batteries in the
SmartKey or
SmartKey with KEYLESS-GO* ...... 107
Loss of the
SmartKey or
SmartKey with KEYLESS-GO* ...... 107
Opening the doors
from the inside ............................. 108
Opening the trunk ........................ 109
Closing the trunk.......................... 110
Trunk emergency release ............. 116
Valet locking ................................ 117
Automatic central locking ............ 117
Locking and unlocking
from the inside ............................. 118
Seats ................................................. 119
Front seat active head restraints . 119
Rear seat head restraints ............. 119
Multicontour seat* ....................... 121
Seat heating* ............................... 122
Seat ventilation* .......................... 123Memory function ............................... 124
Storing positions into memory ..... 125
Recalling positions from memory. 125
Lighting ............................................. 126
Exterior lamp switch .................... 126
Combination switch ..................... 130
Corner-illuminating front
fog lamps* (With Bi-Xenon*
headlamps only)........................... 131
Hazard warning flasher ................ 133
Interior lighting ............................ 134
Door entry lamps ......................... 135
Trunk lamp ................................... 135
Instrument cluster ............................. 136
Adjusting
instrument cluster illumination .... 136
Coolant temperature indicator ..... 137
Resetting trip odometer ............... 137
Tachometer.................................. 138
Clock............................................ 138
Outside temperature indicator ..... 138
Control system .................................. 139
Multifunction display.................... 139
Multifunction steering wheel........ 140
Menus .......................................... 142
Standard display menu ................ 145

475 Technical data
Fuels, coolants, lubricants, etc.
Brake fluid
During vehicle operation, the boiling point
of the brake fluid is continuously reduced
through the absorption of moisture from
the atmosphere.
Only brake fluid approved by
Mercedes-Benz is recommended. An
authorized Mercedes-Benz Center will
provide you with additional information.Premium unleaded gasoline
Warning!G
Under extremely strenuous operating condi-
tions, this moisture content can lead to the
formation of bubbles in the system, thus re-
ducing the system’s efficiency.
Therefore, the brake fluid must be replaced
regularly. Refer to your vehicle's Mainte-
nance Booklet for replacement interval.
Warning!G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious per-
sonal injury.
Never allow sparks, flame or smoking mate-
rials near gasoline!
Turn off the engine before refueling
Whenever you are around gasoline, avoid in-
haling fumes and skin or clothing contact,
extinguish all smoking materials.
Direct skin contact with fuels and the inha-
lation of fuel vapors can be damaging to
your health.
!To maintain the engine’s durability and per-
formance, premium unleaded gasoline must be
used. If premium unleaded is not available and
low octane fuel is used, follow these precau-
tions:

Have the fuel tank only partially filled with
unleaded regular and fill up with premium
unleaded as soon as possible.

Avoid full throttle driving and abrupt acceler-
ation.

Do not exceed an engine speed of 3 000 rpm
if the vehicle is loaded with a light load such
as two persons and no luggage.

Do not exceed 2/3 of maximum accelerator
pedal position if the vehicle is fully loaded or
operating in mountainous terrain.

484 Index
Control system menus 142, 143
AMG 145
AUDIO 149
NAV* 151
Settings 153
Settings, Submenus 154
Standard display 145
Submenus 141
TEL* 167
Trip computer 165
Vehicle status message memory 152
Control system submenus 141, 143, 155
Convenience 164
Instrument cluster 156
Lighting 160
Time/Date 158
Vehicle 163Coolant 320, 477
Adding 320
Anticorrosion/antifreeze
mixing ratio and quantity 477
Capacities 472
Checking coolant level 320
Messages in display 390–392
Temperature 311
Temperature indicator 137
Warning lamp 371
Coolants 477
Corner-illuminating front fog lamps* 131
Replacing bulbs 428, 429
Cruise control 263
Canceling 265
Cruise control lever 263
Current speed 264
Fine adjustment 266
Higher speed 265
Last stored speed
(“Resume” function) 266
Slower speed 266
Cup holder 279
Curb weight 347D
Date 158
Date, Setting 159, 160
Daytime running lamp mode 128
Setting 160, 161
Deep water see Standing water
Defogging
Windshield 194, 204
Defrosting, Front 193, 204
Defrosting, Rear 187
Delayed shut-off
Exterior lamps 162
Interior lighting 163
Department of Transportation see DOT
Difficulties
With starting 52
Digital speedometer 145
Dimensions, Vehicle 471
Direction of rotation (tires) 326
Displays
Digital speedometer 145
Lap analysis 149
Maintenance service indicator 353
Messages in display 378
Multifunction display 139
Outside temperature 138

490 Index
KEYLESS-GO* 101
Batteries in SmartKey 107
Battery check lamp, SmartKey 105
Factory setting 104, 106
Ignition 38
Important notes 103
Lock button 62
Locking/unlocking 35, 62, 101
Locking/unlocking,
Global setting 104, 105
Locking/unlocking,
Global with lock button
on trunk lid 106
Locking/unlocking,
Selective setting 105, 106
Loss of key 107
Messages in display 395, 396
Remote control 101
Start/stop button 37
Starting the engine 51
Turning off the engine 60
Unlocking/opening trunk lid 107
Kickdown 174
Kilopascal 348L
Labels 462
Certification 462
Emission control information 463
Vacuum line routing diagram 463
Lamp sensor see Light sensor
Lamps, exterior 427
Light sensor 396
Messages in display 397–400
Lamps, indicator and warning
ABS 27, 366
Battery (SmartKey) 100, 105
Brakes 27, 368
Center console 376–377
CHECK ENGINE 369, 370
Coolant 371
Coolant temperature 27, 137
Distance warning 27
Engine diagnostics 369, 370
Engine malfunction 27, 369, 370
ESP
®27, 372
Fog lamps 130
Front passenger front air bag off 69
Front passenger front
air bag off indicator lamp 376
Fuel reserve 27, 373High beam headlamp 27
Instrument cluster 366–375
Low beam headlamp 27
Parktronic system*
(CLK 63 AMG (USA),
Canada all vehicles)
warning indicators 269
Roll bar 373
Seat belt telltale 27, 78
SRS 27, 65, 375
Turn signals 27
Language, Setting 156
LATCH-type child seat anchors see
Children in the vehicle
License plate lamps
Messages in display 398
Replacing bulbs 428, 433
Light alloy wheels, cleaning 362
Light sensor
Messages in display 396
Lighter see Cigarette lighter
Lighting, Exterior and interior 126
Limp-home mode 183
Loading
Ski sack* (Canada only) 271
Loading see Vehicle loading