
4 Contents
Electronic stability program 
(ESP) — warning lamp  ...............295
Distronic (DTR) — 
warning lamp  ..............................295
Seat belt nonusage
warning lamp  ..............................296
Malfunction and indicator
lamp in the center console  ......296
AIRBAG OFF indicator lamp .....296
Malfunction and
warning messages in the 
multifunction display  ...............297
DISPLAY DEFECTIVE 
(engine control unit) ..................298
DISPLAY DEFECTIVE 
(several systems)  ........................298
BATTERY /ALTERNATOR  ..........299
ENTRANCE POSITION  ..............300
BRAKE ASSIST  ...........................300
BRAKE LINING WEAR  .............. 301
BRAKE FLUID  ............................. 301
PARKING BRAKE  .......................302
TRUNK OPEN  .............................302ELEC. STABIL. PROG.
(Electronic stability
program)  ..................................... 303
COOLANT (coolant level)  ......... 304
COOLANT
(coolant temperature)  ............... 305
LIGHTING SYSTEM  ................... 306
LIGHT SENSOR  .......................... 308
SEAT BELT SYSTEM  .................. 308
TELEPHONE – FUNCTION  ....... 309
CRUISE CONTROL ..................... 309
ACTIVE  BO DY  CO NTROL 
(ABC)  ............................................ 310
TIRE PRESSURE  .........................312
ENGINE OIL LEVEL  .................... 314
SEAT BACKREST ......................... 315
KEY  ...............................................316
DOOR  ............................................ 316
HOOD ............................................ 317
TELE AID ......................................317
ENGINE OIL LEVEL  .................... 318
WASHER FLUID  ..........................319
LIGHT SENSOR  .......................... 320
DISTRONIC (DTR)  ...................... 321
Practical hintsFirst aid kit  .....................................324
Fuses  ................................................325
Shelf below rear window  ..............327
Hood  .................................................328
Checking engine oil level  ............. 331
Automatic transmission 
fluid level  ...................................332
Active b od y  control  
(ABC) fluid level ........................332
Coolant level  ...................................333
Adding coolant  ...........................333
Windshield and headlamp
washer system  ...........................334
Windshield and headlamp 
washer fluid mixing ratio  .........334
Spare wheel, vehicle tools, 
storage compartment ................335
Jack ...................................................336
Wheels  .............................................337
Tire Replacement  .......................337
Rotating wheels  ..........................338
Spare wheel  ....................................338 

285 What you should know at the gas station
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Leaving the engine running and the fuel cap open can 
cause the “CHECK ENGINE” lamp to illuminate, see 
page 290 for notes on the “CHECK ENGINE” lamp.
Fuel tank capacity approx. 23.2 US gal (88.0 l).
This includes approx. 2.9 US gal (11.0 l) reserve. 
Use premium unleaded gasoline: 
CL 500, CL 55 AMG:
Posted Octane Index 91 (Average of 96 RON/86 MON).
CL 600:
Posted Octane Index 93 (Average of 98 RON/88 MON).Engine oil
Checking oil level, see instructions on pages 154 
and 331.
CL 500 and CL 55 AMG only:
Fill qu antity b etween u pper a nd l ower dipstick m arking  
level: 2.1 US qt (2.0 l).
Recommended engine oils, see Approved Service 
Products sheet.
Coolant
For normal replenishing, use water (potable water 
quality). For further information refer to page 333. 

287 Check regularly and before a long trip
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Check regularly and before a long trip 1Windshield washer and 
headlamp cleaning system
For refilling reservoir see page 334.
2Coolant level, 
see “Coolant level” on page 333
3Engine oil level,
see “Engine oil level, checking” on page 154 and 331
4Brake fluid, 
see “Brake fluid” on page 395
Opening hood, see page 328.
Ve h i c l e   l i g h t i n g : Check function and cleanliness. For 
replacement of light bulbs, see “Exterior lamps” on 
page 354.
Exterior lamp switch, see page 156.
P20.00-2057-26 

289 Contents - Instrument cluster display
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index
Instrument cluster displayMalfunction and indicator
lamps in the 
instrument cluster  ....................290
On-board diagnostic system  .....290
Check engine malfunction 
indicator lamp .............................290
Brake warning lamp  ..................292
Supplemental restraint
system (SRS) 
indicator lamp .............................293
Fuel reserve warning .................293
ABS malfunction
indicator lamp .............................294
Electronic stability program 
(ESP) — warning lamp  ...............295
Distronic (DTR) — 
warning lamp  ..............................295
Seat belt nonusage
warning lamp  ..............................296Malfunction and indicator
lamp in the center console ...... 296
AIRBAG OFF indicator lamp  .... 296
Malfunction and
warning messages in the 
multifunction display  .............. 297
DISPLAY DEFECTIVE 
(engine control unit)  ................. 298
DISPLAY DEFECTIVE 
(several systems)  ....................... 298
BATTERY /ALTERNATOR  ......... 299
ENTRANCE POSITION  .............. 300
BRAKE ASSIST ........................... 300
BRAKE LINING WEAR .............. 301
BRAKE FLUID  ............................ 301
PARKING BRAKE ....................... 302
TRUNK OPEN  ............................. 302
ELEC. STABIL. PROG.
(Electronic stability
program)  ..................................... 303
COOLANT (coolant level)  ......... 304COOLANT
(coolant temperature)  ................305
LIGHTING SYSTEM ....................306
LIGHT SENSOR ...........................308
SEAT BELT SYSTEM ...................308
TELEPHONE – FUNCTION  .......309
CRUISE CONTROL  .....................309
ACTIV E  BO DY  CO NTROL 
(ABC)  ............................................ 310
TIRE PRESSURE  ......................... 312
ENGINE OIL LEVEL  ................... 314
SEAT BACKREST  ........................ 315
KEY ............................................... 316
DOOR  ........................................... 316
HOOD  ........................................... 317
TELE AID  ..................................... 317
ENGINE OIL LEVEL  ................... 318
WASHER FLUID  ......................... 319
LIGHT SENSOR ...........................320
DISTRONIC (DTR)  ...................... 321 

304 Malfunction and warning messages
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index
COOLANT (coolant level)
* C = Category, see page 297When this message appears while driving, the coolant 
level has dropped below the required level. If no leaks 
are noticeable and the engine temperature does not 
increase, continue to drive to the nearest service station 
and have coolant added to the coolant system.The low engine coolant level warning should not be 
ignored. Extended driving with the symbol displayed 
may cause serious engine damage not covered by the 
Mercedes-Benz Limited Warranty.
In cases of major or frequent minor coolant loss, have 
the cooling system checked at your authorized 
Mercedes-Benz Center as soon as possible.
Note:
Do not drive without coolant in the cooling system. The 
engine will overheat causing major engine damage.
Monitor the coolant temperature gauge while driving, 
see page 117.
See page 333 for instructions on topping up the coolant.Line 1 Line 2 C*
COOLANT CHECK LEVEL! 2
Wa r n i n 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 can be seriously burned. 

323 Contents - Practical hints
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Practical hintsFirst aid kit  .....................................324
Fuses ................................................325
Shelf below rear window  ..............327
Hood  .................................................328
Checking engine oil level  ............. 331
Automatic transmission 
fluid level  ...................................332
Active body control 
(ABC) fluid level ........................332
Coolant level  ...................................333
Adding coolant  ...........................333
Windshield and headlamp
washer system  ...........................334Windshield and headlamp 
washer fluid mixing ratio  ........ 334
Spare wheel, vehicle tools, 
storage compartment  ............... 335
Jack  .................................................. 336
Wheels  ............................................ 337
Tire Replacement ....................... 337
Rotating wheels  ......................... 338
Spare wheel .................................... 338
Changing wheels  ........................... 340
Tire inflation pressure  ................. 345
Battery ............................................. 346
Jump starting  ................................. 349
Towing the vehicle  ........................ 351Exterior lamps  ................................354
Headlamp assembly ...................355
Taillamp assemblies  ..................358
Standby bulb function ................... 361
Changing batteries 
in the electronic main key  ......363
Synchronizing
remote control  ............................365
Changing batteries
in the KEYLESS-GO-card  .........366
Emergency engine
shut-down  ..................................368
Fuel filler f lap, 
manual release  ..........................368
Emergency operation of
sliding/pop-up roof  ...................369
Replacing wiper blades .................370
Trunk lamp  ..................................... 371
Roof rack  .........................................372 

333 Engine compartment
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index Coolant level
1Coolant expansion tank
To check the coolant level, the vehicle must be parked 
on level ground and the engine stopped.
Check coolant level only when coolant is cold.
The coolant level should reach the black top part of the 
reservoir.
See page 397 for antifreeze/anticorrosion mixture.Adding coolant
If coolant has to be added, a 50/50 mixture of water and 
MB anticorrosion/antifreeze should be added.
1
Wa r n i n g !
• In order to avoid possibly 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 indicates that the coolant is 
overheated.• Do not remove pressure cap on coolant 
reservoir if engine temperature is above 194°F 
(90°C). Allow engine to cool down before 
removing cap. The coolant reservoir contains 
hot fluid and is under pressure.• Using a rag, slowly open cap approximately 1/2 
turn to relieve excess pressure. If opened 
immediately, scalding hot fluid and steam will 
be blown out under pressure.• Do not spill antifreeze on hot engine parts. 
Antifreeze contains ethylene glycol which may 
burn if it comes into contact with hot engine 
parts. 

398 Fuels, coolants, lubricants etc. - capacities
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index
the engine temperature will increase due to the lower 
h eat transfer ca pa bil ity of th e sol ution. Therefore, d o not 
use more than this amount of anticorrosion/antifreeze.
If the coolant level is low, water and MB 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, consult your authorized Mercedes-Benz Center.
Anticorrosion/antifreeze
Your vehicle contains a number of aluminium parts. The 
use of aluminium components in motor vehicle engines 
necessitates that anticorrosion/antifreeze coolant used 
in such e ng ines b e specif ica lly formul ated  to protec t th e 
aluminium parts. (Failure to use such anticorrosion/
antifreeze coolant will result in a significantly 
shortened service life.)
Therefore the following product is strongly 
recommended for use in your vehicle: Mercedes-Benz 
anticorrosion/antifreeze agent.Before the start of the winter season (or once a year in 
the hot southern regions), you should have the 
anticorrosion/antifreeze concentration checked. The 
coolant is also regularly checked each time you bring 
your vehicle to your authorized Mercedes-Benz Center 
for service.
Anticorrosion/antifreeze quantity
Model Approx. freeze protection
– 35°F
(– 37°C)– 49°F
(– 45°C)
CL 500, 
CL 55 AMG6.1 US qt
(5.75 l)6.7 US qt
(6.3 l)
CL 600 6.3 US qt
(6.0 l)7. 0   U S   q t
(6.6 l)