Page 242 of 350

239 Malfunction and indicator lamps
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Malfunction and indicator lamp in the center
console
AIRBAG OFF indicator lamp
The 7 indicator lamp will light up for approximately
6 seconds when you turn the electronic key in steering
lock to position 1 or 2.
The 7 indicator lamp stays lit as long as a
BabySmart
TM compatible child seat is properly installed
on the front passenger seat. It indicates that the front
passenger airbag is switched off.
See page 66 for BabySmart
TM deactivation system.
BabySmart
TM is a trademark of Siemens Automotive Corp.
Wa r n i n g !
The BabySmart
TM airbag deactivation system will
ONLY work with a special child seat designed to
operate with it. It will not work with child seats
which are not BabySmart
TMcompatible.
Never place anything between seat cushion and
child seat (e.g. pillow), since it reduces the
effectiveness of the deactivation systems.Follow the manufacturer’s instructions for
installation of special child seats.The passenger front airbag will not deploy only if
the7 indicator lamp remains illuminated.Please be sure to check the indicator every time
you use the special system child seat. Should the
light go out while the restraint is installed, please
check installation. If the light remains out, do not
use the BabySmart
TM restraint to transport children
on the front passenger seat until the systems has
been repaired.
W210.book Seite 239 Mittwoch, 30. Mai 2001 11:45 11
Page 246 of 350
243 Malfunction and warning messages
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index ABS-SYSTEM
A malfunction has been detected in the system. The
brake system functions in the usual manner, but
without antilock assistance.
With the ABS malfunctioning, the BAS and ESP are also
switched off.
Have the system checked at your authorized
Mercedes-Benz Center as soon as possible.BRAKE ASSIST
A malfunction has been detected in the system. The
brake system functions in the usual manner, but
without BAS.
Line 1 Line 2
ABS-SYSTEM VISIT WORKSHOP!
P54.30-2938-21
Line 1 Line 2
BRAKE ASSIST VISIT WORKSHOP!
DISPLAY DEFECTIVE VISIT WORKSHOP!
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Page 252 of 350
249 Malfunction and warning messages
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index LIGHT SENSOR
With the electronic key removed and the driver’s door
open, a warning sounds and the message “SWITCH OFF
LIGHTS!” appears in the multifunction indicator if the
vehicle’s exterior lamps (except standing lamps) are not
switched off.REMOVE KEY
This message plus an audible alarm indicate that the
electronic key is in steering lock position 0 or 1, and the
driver’s door is open.
Line 1 Line 2
SWITCH OFF LIGHTS!
Line 1 Line 2
REMOVE KEY!
P54.30-3573-21
W210.book Seite 249 Mittwoch, 30. Mai 2001 11:45 11
Page 258 of 350

255 Contents – Practical hints
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Practical hintsFirst aid kit .....................................256
Stowing things in the vehicle ......256
Fuses ................................................257
Hood .................................................259
Checking engine oil level .............262
Automatic transmission
fluid level ...................................263
Coolant level ...................................263
Adding coolant ...........................264
Windshield and headlamp
washer system ...........................265
Windshield and headlamp
washer fluid mixing ratio .........265
Spare wheel, vehicle tools,
storage compartment ................266Vehicle jack .................................... 267
Wheels ............................................ 268
Tire replacement ....................... 268
Rotating wheels ......................... 269
Spare wheel .................................... 270
Spare wheel bolts ...................... 270
Spare wheel .....................................271
Changing wheels ........................... 273
Tire inflation pressure ................. 278
Battery ............................................. 280
Jump starting ................................. 282
Towing the vehicle ........................ 285
Transmission selector lever,
manually unlocking ................. 287Exterior lamps ................................288
Headlamp assembly ...................289
Taillamp assemblies ..................292
Changing batteries
in the electronic main key ......294
Synchronizing
remote control ............................296
Emergency engine shut-down .....296
Rear seat cushion ..........................297
Emergency operation of
sliding / pop-up roof .................298
Manual release for
fuel filler flap .............................299
Replacing wiper blade insert .......300
Roof rack .........................................302
W210.book Seite 255 Mittwoch, 30. Mai 2001 11:45 11
Page 263 of 350
260 Engine compartment
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
To o p e n :
To unlock the hood, pull release lever (1) under the
driver’s side of the instrument panel. At the same time a
handle will extend out of the radiator grill (it may be
necessary to lift the hood up slightly).
Caution!
To avoid damage to the windshield wiper or hood, open
the hood only with wiper in the parked position.
P68.00-2431-26
W210.book Seite 260 Mittwoch, 30. Mai 2001 11:45 11
Page 264 of 350
261 Engine compartment
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Pull handle (2) to its stop out of radiator grill and open
hood (do not pull up on handle).To c l o s e :
Lower hood and let it drop into lock from a height of
ap pr oxim ately 1 f t. (3 0 cm ), as si stin g wi th hand s p lac ed
flat on edges of hood (3).
To avoid hood damage, please make sure that hood is
fully closed. If not, repeat closing procedure. Do not
push down on hood to attempt to fully close it.
W210.book Seite 261 Mittwoch, 30. Mai 2001 11:45 11
Page 267 of 350

264 Engine compartment
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Adding coolant
If coolant has to be added, a 50/50 mixture of water and
MB anticorrosion / antifreeze should be added.
The drain plugs for the cooling system are located on
the right side of the engine block and at the bottom of
the radiator.
Anticorrosion / antifreeze, see page 326.
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.
W210.book Seite 264 Mittwoch, 30. Mai 2001 11:45 11
Page 269 of 350
266 Spare wheel
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Spare wheel, vehicle tools, storage compartment
1Trunk floor
2Handle
3Luggage bowl
4Vehicle toolsLift trunk floor and engage handle in upper edge of the
trunk.
To remove spare tire:
Turn luggage bowl counterclockwise and remove.
To store spare tire:
Place spare tire in wheel well and secure it with luggage
bowl. Turn luggage bowl clockwise to its stop.
Note:
Always lower trunk floor before closing trunk lid.
P40.10-2244-26
1
2
34
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